Michoacan-Guanajuato

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 19.85°N
  • 101.75°W

  • 3860 m
    12661 ft

  • 341060
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: December 1989 (SEAN 14:12) Citation IconCite this Report


Fumarole temperatures decrease

Geologists visited Ahuan fumarole on 23 November. The fumarole temperature was 305°C, a decrease from 336°C measured in May 1988.

Information Contacts: Kurt Roggensack, Helen Mango, John Lucio, and Half Zantop, Dartmouth College.

The Global Volcanism Program has no Weekly Reports available for Michoacan-Guanajuato.

Bulletin Reports - Index


Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

04/1983 (SEAN 08:04) Fumaroles emit acid gases

11/1985 (SEAN 10:11) Fumarole temperatures increase

11/1986 (SEAN 11:11) Temperature of hottest fumarole declines; HCl-rich gases

05/1988 (SEAN 13:05) Fumarole temperatures decline

12/1989 (SEAN 14:12) Fumarole temperatures decrease




Information is preliminary and subject to change. All times are local (unless otherwise noted)


April 1983 (SEAN 08:04) Citation IconCite this Report


Fumaroles emit acid gases

"Fumaroles at several localities were emitting small amounts of acid gases but there was no visible plume at the summit or elsewhere when visited 28 April-1 May. Temperatures were mostly less than 150°C but some were much hotter, over 400°C."

Information Contacts: R. Stoiber, L. Benton, C. Connor, D. Douglass, D. Shumway, and J. Swartz, Dartmouth College.


November 1985 (SEAN 10:11) Citation IconCite this Report


Fumarole temperatures increase

"Fumarolic activity persisted at Ahuan vent on the SW flank. When temperatures were measured at Ahuan vent on 29 November, the hottest fumarole was 473°C, 70° higher than in April 1983, when Dartmouth scientists last measured temperatures at Parícutin. Several fumaroles over an area of about 50 m2 were hotter than 300°C. No physical changes in the area were apparent since April 1983."

Information Contacts: C. Connor, B. Gemmell, and R. Stoiber, Dartmouth College.


November 1986 (SEAN 11:11) Citation IconCite this Report


Temperature of hottest fumarole declines; HCl-rich gases

When geologists visited Parícutin 26 November, fumaroles were emitting HCl-dominated gases. The temperature of Ahuan fumarole (on the SW flank) was 375°C, about 100° lower than in November 1985. Other fumaroles remained at about 100°C. No other changes were observed.

Information Contacts: R. Stoiber, C. Connor, and other geologists, Dartmouth College.


May 1988 (SEAN 13:05) Citation IconCite this Report


Fumarole temperatures decline

Geologists mapped fumaroles and measured temperatures on 8 and 16 May. As in previous years, fumaroles were hottest at Ahuan vent (figure 1) but had cooled to 336°C, from 473° in November 1985 and 375° in November 1986. The area seemed morphologically unchanged since April 1983. Fumaroles at Sapichu vent ranged from 186° to 275°C, an increase of as much as 120° since they were last measured in April 1983. Sulfur continued to be deposited around the Sapichu fumaroles. All other fumaroles at Parícutin had temperatures of <200°C, most <100°. Fumaroles on the crater rim and along major flow levees ranged from 60° to 80°C, essentially unchanged since April 1983.

Figure (see Caption) Figure 1. Distribution of fumaroles at Parícutin, May 1988. Fumaroles were found in the shaded areas (stipple pattern, <100°C, solid pattern, >100°C). Three vents are labeled: Ahuan (A), the main crater (P), and Sapichu (S). The W and SW margins of lava flows surrounding the cone are indicated by the stippled border.

Information Contacts: C. Connor, James Diaz, and Jorge Corrales, FIU, Miami; Ana Lillian Martin-Del Pozzo, Instituto de Geofísica, UNAM, México.


December 1989 (SEAN 14:12) Citation IconCite this Report


Fumarole temperatures decrease

Geologists visited Ahuan fumarole on 23 November. The fumarole temperature was 305°C, a decrease from 336°C measured in May 1988.

Information Contacts: Kurt Roggensack, Helen Mango, John Lucio, and Half Zantop, Dartmouth College.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History


There is data available for 11 Holocene eruptive periods.


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1943 Feb 20 1952 Feb 25 Confirmed 4 Historical Observations Parícutin
1759 Sep 29 1774 Confirmed 4 Historical Observations Jorullo
[ 1050 ± 50 years ] [ Unknown ] Uncertain     Valle de Santiago
1140 BCE ± 865 years Unknown Confirmed   Radiocarbon (corrected) Cerro el Zoyate
1880 BCE ± 150 years Unknown Confirmed 3 Radiocarbon (uncorrected) Cerro el Jabalí
2050 BCE (?) Unknown Confirmed   Anthropology Valle de Santiago (La Alberca)
2750 BCE ± 200 years Unknown Confirmed 3 Radiocarbon (uncorrected) Cerro el Metate
4140 BCE ± 300 years Unknown Confirmed   Radiocarbon (corrected) Cerro la Tinaja
5940 BCE ± 335 years Unknown Confirmed   Radiocarbon (corrected) Cerro Grande?
6480 BCE ± 300 years Unknown Confirmed 3 Radiocarbon (uncorrected) Cerro la Taza
7350 BCE ± 300 years Unknown Confirmed 3 Radiocarbon (uncorrected) Hoyo el Huanillo

Deformation History


There is data available for 1 deformation periods. Expand each entry for additional details.


Deformation during 2007 - 2011 [subsidence; Observed by InSAR]

Start Date: 2007 Stop Date: 2011 Direction: subsidence Method: InSAR
Magnitude: 3.000 cm Spatial Extent: 3.00 km Latitude: Unknown Longitude: Unknown

Remarks: Lava flow subsidence at the base of Paricutin cinder cone

Averaged 2007?2011 LOS velocity map of the Trans-Mexican Volcanic Belt, from ALOS InSAR. Only pixels with a temporal coherence larger than 0.7 are shown. Red triangles: historically active volcanoes (bold: those active during the survey period). Black triangles: other volcanoes. Black diamonds: major cities near volcanoes. White arrow: relative plate convergence rate at the Cocos Trench. Positive LOS velocities (uplift) are shown in red and negative LOS velocities (subsidence) in blue. Labeled insets: zoomed in for volcanoes showing deformation (Pari?cutin) or volcanoes active during the time period of the survey (Colima and Popocate?petl). These insets have a smaller color scale. Bottom right inset: LOS velocity map of El Chicho?n, volcano located southeast of the area shown.

From: Chaussard et al. 2013.


Reference List: Fournier et al. 2010; Chaussard et al. 2013.

Full References:

Chaussard, E., Amelung, F., & Aoki, Y., 2013. Characterization of open and closed volcanic systems in Indonesia and Mexico using InSAR time series. Journal of Geophysical Research: Solid Earth, 118(8), 3957-3969.

Fournier, T. J., M. E. Pritchard, and S. N. Riddick, 2010. Duration, magnitude, and frequency of subaerial volcano deformation events: New results from Latin America using InSAR and a global synthesis. Geochem. Geophys. Geosyst., 11, Q01003, doi:10.1029/2009GC002558.

Emission History


There is no Emissions History data available for Michoacan-Guanajuato.

Photo Gallery


An ash column rising above Parícutin is seen on June 9, 1943 from the Uruapan highway east of the volcano. Prevailing winds distribute the ash plume to the south. Others of the more than 1000 cinder cones of the massive Michoacán-Guanajuato volcanic field appear on the horizon.

Photo by William Foshag, 1943 (Smithsonian Institution).
See title for photo information.
A roughly 15-second time-exposure at night shows the incandescent trajectories of ejecta from Parícutin on August 1, 1943, during the early stages of the 1943-52 eruption. Periodic large explosions observed at this time burst huge lava bubbles in the vent, rapidly ejecting large masses of incandescent orange spatter.

Photo by Carl Fries, 1943 (U.S. Geological Survey).
See title for photo information.
Parícutin emits a shower of glowing embers in this painting by Dr. Atl, the renowned Mexican artist and Renaissance man. He correctly noted that time-exposure color photos of these strombolian eruptions portray the volcanic bombs as luminous parabolas, giving a misleading view of the character of the eruptions.

Painting by Dr. Atl (published in Luhr and Simkin, 1993).
See title for photo information.
The tower of the unfinished San Juan Parangaricutiro church rises above lava flows from Parícutin that surrounded it in 1944. The Taquí lava flow began on January 8, 1944, from the SW base of Parícutin. Renewed effusion on April 24 produced lava tongues that threatened the town of San Juan Parangaricutiro and, by June 17, invaded it. The church was surrounded by lava in July. By the time the flow ceased movement in early August it had a length of 10 km.

Photo by James Allan, 1985 (Smithsonian Institution).
See title for photo information.
Parícutin, the volcano born in cornfield in 1943, is the best-known feature of the Michoacán-Guanajuato volcanic field. The huge volcanic field contains over 1400 vents covering a wide area of Michoacán and Guanajuato states. Cinder cones are the predominant volcanic form, but small shield volcanoes, lava domes, maars, tuff rings, and coneless lava flows are also present. Parícutin is seen here from the NE with 3842-m-high Cerro de Tancítaro, the highest peak of the volcanic field, in the background.

Photo by James Allan, 1985 (Smithsonian Institution).
See title for photo information.
Sequential profiles show the progessive growth of Parícutin volcano. The bulk of the volcano's growth took place during the first year (darker red profiles), after which cone growth slowed for the following two years. Dashed lines at the left show the cone's profile prior to a major slump of the northern flank on June 9, 1943, produced when part of the cone was carried away by rapid lava effusion from the base of the cone. The final cross section made in 1974 shows the cone's profile two decades after the end of the eruption.

Sketch published in Luhr and Simkin (1993).
See title for photo information.
An aerial view from the NNW on March 5, 1943, about two weeks after the start of the eruption, shows the Quitzocho lava flow advancing to the NE as an ash plume rises from the cinder cone. The flow advanced in a rubbly sheet about 6 to 15 m high. Its volatile content was higher than in later Parícutin lava flows, and fumaroles pour from the margins of the flow. This photo was taken during the second of two flow surges, which took place from February 28 to March 20.

Photo by Ezequiel Ordonez, 1943 (U.S. National Archives).
See title for photo information.
A dark ash plume, seen here from the NE, rises above the new volcano on February 21, 1943, the 2nd day of the eruption. The new cone, seen just rising above the tree tops, is about 30 m high. During this early stage the cone had the shape of a low dome, with slope angles of 32 degrees toward the west, but lesser angles to the east. This indicates that the cone had already been breached and that lava had begun flowing to the east.

Photo by Salvador Ceja, 1943 (U.S. National Archives, published in Luhr and Simkin, 1993).
See title for photo information.
An incandescent lava flow travels down a channel within solidified lava near the SW-flank vents of Parícutin in 1945. Lava flows at this time traveled NW over the site of the village of Parícutin. The Taquí lava flows, erupted during 1944-45, covered about 18 sq km. The most striking feature of the Taquí flows was the development of hornitos (rootless vents) formed when clots of molten lava were ejected through overlying solidified crust.

Photo by Ken Segerstrom, 1945 (U.S. Geological Survey, published in Luhr and Simkin, 1993).
See title for photo information.
A gray convecting plume rises above Parícutin in October 1944. Much of the eruption column consists of ash-poor steam. The photo was taken from the north at the outskirts of the town of San Juan Parangaricutiro. Lava flows in the foreground had already buried the town; the church tower seen in many other photos of the Parícutin eruption is hidden behind the small tree at the right.

Photo by Carl Fries, 1945 (U.S. Geological Survey, published in Luhr and Simkin, 1993).
See title for photo information.
An ash-rich eruption column in 1944 is photographed from the first observatory cabin 1.5 km north of Parícutin, with local eruption enthusiast Celedonio Gutierrez in the foreground. Gutierrez, born in the nearby town of San Juan Parangaricutiro, which at about this time had been overrun by lava flows, became actively involved in collaborations with U.S. scientists throughout the eruption.

Photo by Ken Segerstrom, 1944 (U.S. Geological Survey, published in Luhr and Simkin, 1993).
See title for photo information.
The first lava flow from Parícutin, the Quitzocho flow, moves northward over cornfields prepared for planting. A dark, ash-rich plume rises from the new cone, which by the time of this photo on February 25, the 5th day of the eruption, was already more than 150 m high. Steam rises from fumaroles on the advancing lava flow, and the flanks of the cone are obscured by dust and vapor.

Photo by Instituto de Geología, 1943 (published in Luhr and Simkin, 1993).
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The steeple of the church of San Juan Parangaricutiro projects above surrounding lava fields in the center of the photo as seen from a viewpoint NE of the church. The still-unfinished church was overrun by lava in July 1944, a month after flows began advancing into the town. The unvegetated, steeper-sided viscous lava flows in the background were erupted later during 1944-46.

Photo by Jim Luhr, 1982 (Smithsonian Institution).
See title for photo information.
This spectacular nighttime time-exposure of México's Parícutin volcano in 1948 shows strombolian ejection of incandescent blocks and their trails as they roll down the slopes of the cone. Parícutin is renowned as the volcano that was born in a cornfield in 1943. It grew to a height of more than 150 m within the first week of its appearance, and remained active until 1952.

Photo by Carl Fries, 1948 (U.S. Geological Survey).
See title for photo information.
This sketch by Dr. Atl, the Mexican Renaissance man and noted artist, depicts the early moments of the birth of Parícutin volcano in a cornfield near the village from which the volcano was named. A Tarascan Indian farmer, Dionisio Pulido, observed the formation of the eruptive vent in his field about 4:30 pm on Feburary 20, 1943. He saw a fissure cut across the field as he was burning branches and noted that the ground around the vent raised up 2-2.5 m immediately prior to the onset of ash emission.

Sketch by Dr. Atl, 1943 (published in Luhr and Simkin, 1993).
See title for photo information.
On July 7, 1944, a tongue of black lava (left) approaches the church of San Juan Parangaricutiro. Residents had already evacuated the town, which had first been invaded by lava flows on June 17. By the time the flow stopped in early August the church was entirely surrounded by lava.

Photo by William Foshag, 1943 (Smithsonian Institution, published in Luhr and Simkin, 1993).
See title for photo information.
In mid-November 1944 lava broke out of the SSW base of the cone, below the south vent in the crater. Fresh black lava pours from the new vent in this view from the south. The Ahuán flow advanced over the earlier Taquí flows in the foreground. A small lava dike was exposed in the wall of the cone a short distance above the vent. Ahuán flows traveled around the east side of the cone to the north.

Photo by Frank Zierer, 1944 (published in Foshag and González-Reyna, 1956).
See title for photo information.
A villager inspects the roof of a house in the village of Parícutin destroyed by heavy ashfall in the first year of the eruption. The village that gave the volcano its name was located only 3 km NW of the new volcano. Ashfall was particularly intense during the eruption's second to fifth months, and the town's 733 residents were forced to evacuate four months after the eruption began. The Mexican government provided new lands in Caltzontzín, 27 km to the SE.

Photo by Frederick Pough, 1943 (American Museum of Natural History).
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A vertical aerial photo of Parícutin taken on May 26, 1945 shows the cone at the bottom with the partially buried horseshoe-shaped vent Sapichu on its NE flank. Lava flows, forming the lighter-colored areas in the photo, surround the Quitzocho Ridge in the center of the photo and the older cinder cone of Cerro de Jarátiro at the top. Ultimately nearly the entire Quitzocho Ridge was buried by lava flows.

1:25,000 aerial photo by Comisión de Estudios del Territorio Nacional, 1945 (CETENAL).
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One of the first photographs taken of the Parícutin eruption shows an ash column rising from the new volcano at 6 pm on February 20, 1943, 1 1/2 hours after the start of the eruption. The photo was taken near Ticuiro, 5 km NNW of the volcano, with the fields of San Juan Parangaricutiro, later overrun by lava flows from Parícutin, in the foreground. Cerro de Canicjuata is the forested older cone at the right.

Photo by Luis Mora-Garcia, 1943 (published in Foshag and González-Reyna, 1956).
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A geologist observes a thick ash plume rising above the crater of Parícutin on March 22, 1944, from Mesa de Cocjarao, 1 km SW. The lowered south rim is due to scouring of the south crater vent by the eruption column. During March 1944 the eruptive activity ranged from a weak explosive column accompanied by deep rumbling to large, but almost soundless cauliflower columns such as the one shown here.

Photo by William Foshag, 1944 (Smithsonian Institution, published in Foshag and Gonzáles-Reyna, 1956).
See title for photo information.
Villagers observe an ash column rising above Parícutin in 1944 beyond the streets of San Juan Parangaricutiro, soon to be overrun by lava flows from the volcano. In June and July 1944 lava advanced slowly through the town, which was incrementally evacuated under the relentless onslaught of the lava. Many residents, with a deep attachment to the land, stayed until the lava overran the last segments of their property.

Photo by William Foshag, 1944 (Smithsonian Institution, published in Luhr and Simkin, 1993).
See title for photo information.
Tarascan Indians observe Parícutin volcano from Cerro de Equijuata, 2.5 km NNE, in March 1944, a little more than a year after the eruption began. The then-extinct parasitic cone Sapichu appears at the NE (left-hand) base of the cinder cone. The rugged lava flows of June 1943 occupy the middle of the photo. Heavy ashfall has defoliated trees, and a thick blanket of ash mantles the landscape.

Photo by Arno Brehme, 1944 (U.S. National Archives, published in Foshag and Gonzáles-Reyna, 1956).
See title for photo information.
On March 24, 1943, a little more than a month after the start of the eruption, an ash-rich eruption column towers 6 km above Parícutin. The photo was taken from Tititzu, 3 km north, and shows the advancing front of the Mesa del Corral lava flow in the middle ground, with the rim of the cinder cone behind it.

Photo by William Foshag, 1943 (Smithsonian Institution, published in Foshag and Gonzáles-Reyna, 1956).
See title for photo information.
An ash-rich eruption column roils from the summit crater of Parícutin volcano sometime during 1946-48. A thick blanket of ash mantles the foreground. An estimated 4500 cattle and 550 horses died during the heavy ashfall in the early months of the eruption, devastating the local people who depended on the animals for food, plowing, and transportation. Ashfall was deeper than 15 cm over a 300 sq km area around the volcano, and continued with varying intensity throughout the 9-year-long eruption.

Photo by Ray Wilcox (U.S. Geological Survey).
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Jorullo volcano, 81 km SE of Parícutin, was born in 1759 during the first historical eruption of the Michoacán-Guanajuato volcanic field. In this view from the NW, the final tongue of still-unvegetated lava that flowed north from the crater rim is visible on the center horizon. One of Jorullo's four parasitic cones, Volcán del Norte, appears on the left horizon. It fed a lava flow toward the west during the middle stages of the 1759-74 eruption.

Photo by Jim Luhr, 1996 (Smithsonian Institution).
See title for photo information.
The principal vent of Jorullo volcano, seen here from the SSE, formed a cinder cone that grew to 250 m in height during the first month and a half of the eruption. Lava flows were erupted at some unknown later time from four flank vents located along a NE-SW fissure cutting through the main cone.

Photo by Jim Luhr, 1996 (Smithsonian Institution).
See title for photo information.
The latest lava flows of the 1759-74 Jorullo eruption appear at the left and foreground of this view from the north with the sparsely vegetated cone of Jorullo at the upper right. Unlike earlier lava flows that were covered with ashfall from explosive eruptions, this latest flow is ash free and remains relatively unvegetated. Lava flows from Jorullo were erupted from NE-SW-trending flank vents and covered an area of 9 sq km.

Photo by Jim Luhr, 1982 (Smithsonian Institution).
See title for photo information.
Youthful lava flows in the western part of the Michoacán-Guanajuato volcanic field are seen in an aerial view from the north. Cerro el Astillero, a cinder cone near the middle right-hand margin of the photo, was the source of the unvegetated lava flow that extends to the east and then south. Cerro el Pedegral, a cone near the lower left, fed lava flows to the west and south toward the upper part of the photo. This lava field is located near the town of Tancítaro and is among the many Holocene flows in the Michoacán-Guanajuato field.

Photo by Lee Siebert, 1997 (Smithsonian Institution).
See title for photo information.
Since the end of the 1759-1774 eruption the crater of Jorullo volcano has been collapsing inward along steep, arcuate step faults, increasing its diameter to 400 x 500 m; its current depth is 150 m. Sparsely vegetated lava flows can be seen at the top below the north flank of the cone.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
Jorullo cinder cone, its crater seen here from the ENE, was the first volcano of the Michoacán-Guanajuato field to be born in historical time. The eruption began with phreatic and phreatomagmatic activity on September 29, 1759. Wet ashfalls and mudflows in the first days caused much damage to neighboring haciendas. By November 13 the cone had reached 250 m height. The long-term eruption continued until 1774. The sparsely vegetated lava flow at the right was the latest product of the eruption.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
Parícutin, the volcano born in a cornfield in 1943, is the best-known feature of the Michoacán-Guanajuato volcanic field. The huge volcanic field contains over 1400 vents covering a wide area of Michoacán and Guanajuato states. Cinder cones are the predominant volcanic form, but small shield volcanoes, lava domes, maars, tuff rings, and coneless lava flows are also present. Parícutin is seen here from the NE with the flank vent of Nueva Juatita, the main source of lava during the last five years of the eruption, in the foreground.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
At the end of the 9-year-long eruption of Parícutin, the new cinder cone rose 424 m above the surface of the original cornfield. The 900-m-wide oval-shaped cone is elongated in a NW-SE direction and is truncated by a circular, 280-m-wide crater. The western peak (right) is the highest point on the crater rim. The NE-flank peak of Nuevo Juatita in the foreground, its top covered by white fumarolic sublimate minerals, was the main source of lava flows during the last five years of the eruption.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
The small light-colored spire in the center of the photo is the renowned steeple of the church of San Juan Parangaricutiro, which was surrounded by lava flows from Parícutin volcano in 1944. This view from the NE shows the flat-lying 1944 Parícutin lava flows in the center of the photo. The steep-sided, viscous lava flows in the background were erupted later, during 1944-46.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
The renowned Parícutin cinder cone, which grew from a Mexican cornfield beginning in 1943, is one of the roughly 1000 cinder cones dotting the massive Michoacán-Guanajuato volcanic field in central Mexico. White fumarolic sublimate minerals blanket the top of Nuevo Juatita in the foreground, a NE-flank vent that was the main source of lava flows during the last five years of the 1943-1952 eruption.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
Jorullo volcano (right-center) is seen in an aerial view from the SSW with Cerro la Pilita cone in the foreground. The SW-flank satellitic vents of Jorullo are visible as the small, less-vegetated cones at its left base. Lava flows from these flank vents were erupted in the middle part of the 1759-1774 eruption and moved to the NNW (left). Cerro la Pilita is an older cone that emitted pre-historical lava flows along a narrow channel to the SW.

Photo by Jim Luhr, 1997 (Smithsonian Institution).
See title for photo information.
A strombolian eruption lights the nighttime sky at Parícutin. The time-exposure photo tracks the trajectory of incandescent bombs, which also dot the flanks of the cone. For many years Parícutin provided a colorful display that was the object of both camera lenses and paint brushes.

Photo by Carl Fries, 1945 (U.S. Geological Survey, published in Luhr and Simkin, 1993).
See title for photo information.
The Valle de Santiago in the NE part of the Michoacán-Guanajuato volcanic field NW of Lake Yuriria contains a group of youthful maars formed by phreatomagmatic eruptions. The maars, four of which are lake-filled, range from 0.8 to 1.8 km in diameter and are 80 to 180 m deep. They were formed very recently and are of probable Holocene age. This photo shows the Hoya Rincón de Parangueo maar at the northern end of the maar field.

Photo by Jim Luhr, 1982 (Smithsonian Institution).
See title for photo information.
Paracho volcano is one of the many small stratovolcanoes of the Michoacán-Guanajuato volcanic field. It is seen here from the west with its summit crater filled by a flat-topped lava dome that is the site of a radio antenna station. The dome fills the head of a large erosional valley that extends from the summit to the volcano's flank. Edifice collapse has affected the eastern side of the volcano, producing a major debris-avalanche deposit covering an area of about 175 sq km.

Photo by Hugo Delgado, 1991 (Universidad Nacional Autónoma de México).
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Lava flows from Parícutin (upper center) cover much of the northern third of the photo. The small white dot above and to the right of Parícutin is the NE-flank vent mound of Nuevo Juatita. The latest lava flows from Parícutin during 1952 originated from this vent and form the darker-colored flows that extend to the ESE. Cerro Tzirapan is the prominent older cinder cone at the right-center, and other older cones appear at the upper left.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL), 1970.
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Ashfall from Hoyo el Huanillo cinder cone (lower left) was radiocarbon dated at about 9300 years ago. A small ash-covered lava flow extends a short distance to the NW of the cone, which is located 35 km NE of Parícutin. The prominent cinder cone of Cerro Cucundicata is at the lower right, and the twin cones of Cerro Borrego and Cerro Tarucun are located nearby, NE of the town of Cherán. The eroded stratovolcano Cerro Pacaracua forms much of the upper part of the photo.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL).
See title for photo information.
Jorullo volcano, which erupted during 1759-1774, and associated lava flows are visible at the bottom of the photo. Four NE-SW-trending vents flank the main cone of Jorullo. The 1759-1774 lava flows appear in varying shades of gray, with the initial (and largest) flows being lighter in color (due to partial ash cover) and the most recent ash-free lava being darker and extending to the NW and NE. Jorullo lies about 80 km SE of Parícutin.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL).
See title for photo information.
Cerro el Jabalí (upper left) and the adjacent Cerro el Sapien (immediately to the east) produced the young unvegetated lava flow extending across the top of the photo. Ashfall from Cerro el Jabalí cinder cone, located about 15 km SE of Parícutin, was dated at about 3830 years ago. An even fresher lava flow with prominent flow levees was erupted from the small cone immediately SW of Cerro el Jabalí and may be even younger. The city of Uruapan is at the right side of the photo, south of the circular Costo (Cerro Cotji) maar.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL).
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Volcán la Mina, the cinder cone near the center-left margin of the photo, was radiocarbon dated at about 17,170 years ago. It is located about 90 km NE of Parícutin. The breached cone fed a large lava flow to the NE. Another breached cone, Volcan el Melón (lower left), was the source of a lava flow that traveled east to the present-day outskirts of the village of Capalu and appears to be younger than Volcán la Mina.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL).
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Cerro el Pueblito (upper left), radiocarbon dated at about 29,000 years ago, was the source of the lava flow that extends eastward across the photo. The older cone of Cerro las Cabras (upper right) partly deflected the flow. The irregular dark-colored area south of the lava flow is La Vibora, a "coneless lava flow." Cerro Arena is the symmetrical cinder cone in the center of the photo. The large forested area on the right side of the photo is Cerro Tecolote, an eroded stratovolcano with flank cinder cones.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL).
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The large forested area above the center of the photo is Cerro Tecolote, an eroded stratovolcano. Cerro la Cabras (upper left) is a prominent breached cinder cone located roughly 50 km NE of Parícutin that fed a lava flow that extends across the upper part of the photo. Mexican highway 15 travels across the flow, which is of Pleistocene age. Cerro Pajarito cinder cone lies just south of Cerro Tecolote, and another cone is on the SW flank of the volcano.

Aerial photo by Comisión de Estudios del Territorio Nacional (CETENAL).
See title for photo information.
The Hoya Rincón de Parangüeo maar is viewed here from its southern rim, which rises directly above the town of the same name on the lower southern flank of the maar. A brackish lake of seasonally variable size partially fills the floor of the 2-km-wide maar. The 2050-m high point on the northern rim rises 450 m above the crater floor. Rincón de Parangueo is part of the Valle de Santiago maar field on the NE side of the Michoacán-Guanajuato volcanic field and lies about 7 km NW of the town of Valle de Santiago.

Photo by Jim Luhr, 2002 (Smithsonian Institution).
See title for photo information.
Geologist Todd Housh observes dune-bedded pyroclastic-surge deposits in the wall of an abandoned quarry on the north flank of Hoya Estrada maar, directly west of the town of Valle de Santiago. Laminar and wave-bedded pyroclastic surge layers are visible at the bottom of the outcrop, and airfall layers occur at the top. Travel direction of the pyroclastic surges was from right to left.

Photo by Jim Luhr, 2002 (Smithsonian Institution).
See title for photo information.
The steep-sided walls of a quarry on the SW flank of Hoya Estrada maar in the Valle de Santiago volcanic field show a spectacular sequence of deposits from the maar-forming eruptions in this view looking ENE in the direction of the vent. Most of the outcrop consists of gray-colored dominantly planar pyroclastic-surge beds. The three prominent light-colored layers are airfall deposits. The largest airfall layer just above the middle of the outcrop is about 2 m thick.

Photo by Jim Luhr, 2002 (Smithsonian Institution).
See title for photo information.
Basaltic scoriae blocks from the Hoya Estrada maar have light-colored silicic rims. This results from large scale mixing of basaltic magmas with silicic end members leaving remnants of the light-colored silicic magma on the outside of the blocks after deposition. Coin provides scale.

Photo by Jim Luhr, 2002 (Smithsonian Institution).
See title for photo information.
The dry-floored Hoya Solis maar is seen from the SW rim of Hoya Blanca maar, immediately SW of the city of Valle de Santiago. The rim of Hoya de Cintora maar lies beyond Hoya Solis below the far left horizon, and a light-colored quarry is faintly visible on the lower NW flanks of Cintora maar. The 600-m-wide Hoya Solis maar is one of the smallest of Valle de Santiago volcanic field, located in the NE part of the Michoacán-Guanajuato volcanic field.

Photo by Jim Luhr, 2002 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database


The following 623 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 104717 Sal Ammoniac PARICUTIN --
NMNH 104717-00 Sal Ammoniac -- --
NMNH 104718-00 Sal Ammoniac -- --
NMNH 104718-01 Sal Ammoniac -- --
NMNH 105184-00 Sal Ammoniac -- --
NMNH 105184-01 Sal Ammoniac -- --
NMNH 105184-02 Sal Ammoniac -- --
NMNH 105184-03 Sal Ammoniac -- --
NMNH 105184-04 Sal Ammoniac -- --
NMNH 105184-05 Sal Ammoniac -- --
NMNH 105184-06 Sal Ammoniac -- --
NMNH 105184-07 Sal Ammoniac -- --
NMNH 105184-08 Sal Ammoniac -- --
NMNH 105184-09 Sal Ammoniac -- --
NMNH 105184-10 Sal Ammoniac -- --
NMNH 105184-11 Sal Ammoniac -- --
NMNH 105184-12 Sal Ammoniac -- --
NMNH 106882-00 Sal Ammoniac -- --
NMNH 106882-01 Sal Ammoniac -- --
NMNH 106923 Volcanic Sublimate PARICUTIN --
NMNH 107427 Volcanic Sublimate PARICUTIN --
NMNH 108058 Basalt PARICUTIN, QUITZOCHO FLOW --
NMNH 108059 Basalt PARICUTIN --
NMNH 108060 Basalt PARICUTIN, QUITZOCHO RIDGE, SMALL FLOW --
NMNH 108061 Basalt PARICUTIN --
NMNH 108062 Basalt PARICUTIN --
NMNH 108063 Basalt PARICUTIN --
NMNH 108064 Basalt PARICUTIN --
NMNH 108065 Basalt PARICUTIN --
NMNH 108066 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108067 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108068 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108069 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108070 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108071 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108072 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108072 Basalt PARICUTIN --
NMNH 108073 Basalt PARICUTIN --
NMNH 108074 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108075 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108076 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108077 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108078 Basalt PARICUTIN, SAPICHU VENT --
NMNH 108080 Basalt PARICUTIN, PARANGARICUTIRO TONGUE --
NMNH 108081 Basalt PARICUTIN, PARANGARICUTIRO TONGUE --
NMNH 108082 Basalt PARICUTIN, PARANGARICUTIRO TONGUE --
NMNH 108083 Basalt PARICUTIN --
NMNH 108084-1 Basalt PARICUTIN --
NMNH 108084-2 Basalt PARICUTIN --
NMNH 108085 Basalt PARICUTIN --
NMNH 108086 Basalt PARICUTIN --
NMNH 108087 Basalt PARICUTIN --
NMNH 108088 Basalt PARICUTIN --
NMNH 108089 Basalt PARICUTIN --
NMNH 108090 Basalt PARICUTIN --
NMNH 108091 Basalt PARICUTIN --
NMNH 108092 Basalt PARICUTIN --
NMNH 108093 Basalt PARICUTIN --
NMNH 108094 Basalt PARICUTIN --
NMNH 108095 Basalt PARICUTIN --
NMNH 108096 Basalt PARICUTIN --
NMNH 108097 Basalt PARICUTIN --
NMNH 108098 Basalt PARICUTIN --
NMNH 108098 Basalt PARICUTIN --
NMNH 108099 Basalt PARICUTIN --
NMNH 108100 Basalt PARICUTIN --
NMNH 108100 Basalt PARICUTIN --
NMNH 108101 Basalt PARICUTIN --
NMNH 108102 Basalt PARICUTIN --
NMNH 108103 Basalt PARICUTIN --
NMNH 108104 Basalt PARICUTIN --
NMNH 108105 Basalt PARICUTIN --
NMNH 108106 Basalt PARICUTIN --
NMNH 108108 Basalt PARICUTIN --
NMNH 108109 Basalt PARICUTIN --
NMNH 108110 Basalt PARICUTIN --
NMNH 108112-1 Basalt PARICUTIN --
NMNH 108112-2 Basalt PARICUTIN --
NMNH 108113 Basalt PARICUTIN --
NMNH 108114-1 Basalt PARICUTIN --
NMNH 108114-2 Basalt PARICUTIN --
NMNH 108115 Basalt PARICUTIN --
NMNH 108115 Basalt PARICUTIN --
NMNH 108116 Basalt PARICUTIN --
NMNH 108117 Basalt PARICUTIN --
NMNH 108118 Basalt PARICUTIN --
NMNH 108119 Basalt PARICUTIN --
NMNH 108119 Basalt PARICUTIN --
NMNH 108120 Basalt PARICUTIN --
NMNH 108120-1 Basalt PARICUTIN --
NMNH 108120-2 Basalt PARICUTIN --
NMNH 108121-1 Basalt PARICUTIN --
NMNH 108121-2 Basalt PARICUTIN --
NMNH 108121-3 Basalt PARICUTIN --
NMNH 108122 Basalt PARICUTIN --
NMNH 108122 Basalt PARICUTIN --
NMNH 108123 Basalt PARICUTIN --
NMNH 108124 Basalt PARICUTIN --
NMNH 108125 Basalt PARICUTIN --
NMNH 108126-1 Basalt PARICUTIN --
NMNH 108126-2 Basalt PARICUTIN --
NMNH 108126-3 Basalt PARICUTIN --
NMNH 108127-1 Basalt PARICUTIN --
NMNH 108127-2 Basalt PARICUTIN --
NMNH 108128 Basalt PARICUTIN --
NMNH 108128 Basalt PARICUTIN --
NMNH 108129 Basalt PARICUTIN --
NMNH 108130 Basalt PARICUTIN --
NMNH 108131 Basalt PARICUTIN --
NMNH 108132-1 Basalt PARICUTIN --
NMNH 108132-2 Basalt PARICUTIN --
NMNH 108133-1 Basalt PARICUTIN --
NMNH 108133-2 Basalt PARICUTIN --
NMNH 108134 Volcanic Ash PARICUTIN --
NMNH 108135 Unidentified PARICUTIN --
NMNH 108136 Unidentified PARICUTIN --
NMNH 108137 Unidentified PARICUTIN --
NMNH 108138 Unidentified PARICUTIN --
NMNH 108139 Unidentified PARICUTIN --
NMNH 108140 Volcanic Ash PARICUTIN --
NMNH 108141 Volcanic Ash PARICUTIN --
NMNH 108142 Volcanic Ash PARICUTIN --
NMNH 108143 Volcanic Ash PARICUTIN --
NMNH 108144 Volcanic Ash PARICUTIN --
NMNH 108145 Volcanic Ash PARICUTIN --
NMNH 108146 Volcanic Ash PARICUTIN --
NMNH 108147 Volcanic Ash PARICUTIN --
NMNH 108148 Volcanic Ash PARICUTIN --
NMNH 108149 Volcanic Ash PARICUTIN --
NMNH 108150 Volcanic Ash PARICUTIN --
NMNH 108151 Unidentified PARICUTIN --
NMNH 108152 Volcanic Ash PARICUTIN --
NMNH 108153 Unidentified PARICUTIN --
NMNH 108154 Volcanic Ash PARICUTIN --
NMNH 108155 Unidentified PARICUTIN, SAPICHU VENT --
NMNH 108156 Unidentified PARICUTIN --
NMNH 108157 Volcanic Ash PARICUTIN --
NMNH 108158 Unidentified PARICUTIN --
NMNH 108160-00 Aphthitalite -- --
NMNH 108162-00 Chloraluminite -- --
NMNH 108163 Basalt PARICUTIN --
NMNH 108166-1 Basalt PARICUTIN --
NMNH 108166-2 Basalt PARICUTIN --
NMNH 108166-3 Basalt PARICUTIN --
NMNH 108166-4 Basalt PARICUTIN --
NMNH 108166-5 Basalt PARICUTIN --
NMNH 108166-6 Basalt PARICUTIN --
NMNH 108167 Basalt PARICUTIN --
NMNH 108170-1 Basalt PARICUTIN --
NMNH 108170-2 Basalt PARICUTIN --
NMNH 108171 Basalt PARICUTIN --
NMNH 108172 Basalt PARICUTIN --
NMNH 108173 Volcanic Ash PARICUTIN --
NMNH 108174 Volcanic Ash PARICUTIN --
NMNH 108175 Volcanic Sublimate PARICUTIN --
NMNH 108176 Basalt PARICUTIN --
NMNH 108176 Basalt PARICUTIN --
NMNH 108184 Basalt PARICUTIN --
NMNH 108293 Volcanic Bomb PARICUTIN --
NMNH 108293 Volcanic Bomb PARICUTIN --
NMNH 108294 Volcanic Bomb PARICUTIN --
NMNH 108295 Basalt PARICUTIN --
NMNH 108304 Basalt PARICUTIN --
NMNH 108305 Basalt PARICUTIN --
NMNH 108607 Lava PARICUTIN --
NMNH 108608 Lava PARICUTIN --
NMNH 108609 Basalt PARICUTIN --
NMNH 108795-1 Basalt PARICUTIN --
NMNH 108795-2 Basalt PARICUTIN --
NMNH 108795-3 Basalt PARICUTIN --
NMNH 108795-4 Basalt PARICUTIN --
NMNH 108796 Painting PARICUTIN --
NMNH 108862 Basalt PARICUTIN --
NMNH 108863 Basalt PARICUTIN --
NMNH 108984-1 Lava -- --
NMNH 108986 Basalt PARICUTIN --
NMNH 108987 Basalt PARICUTIN --
NMNH 109064 Basalt PARICUTIN --
NMNH 109089 Basalt PARICUTIN --
NMNH 109353 Basalt PARICUTIN --
NMNH 109354 Basalt PARICUTIN, ZAPICHO CINDER CONE --
NMNH 114709 Volcanic Ash PARICUTIN --
NMNH 114711 Volcanic Rock PARICUTIN --
NMNH 114712 Volcanic Rock PARICUTIN --
NMNH 114713 Volcanic Rock PARICUTIN --
NMNH 114714 Volcanic Rock PARICUTIN --
NMNH 114715 Basalt PARICUTIN --
NMNH 114716 Unidentified PARICUTIN --
NMNH 114717 Volcanic Ash PARICUTIN --
NMNH 114718 Opal PARICUTIN --
NMNH 114719 Opal PARICUTIN --
NMNH 114720 Basalt PARICUTIN --
NMNH 114721 Opal PARICUTIN --
NMNH 114722 Unidentified PARICUTIN --
NMNH 114723 Ammonium Chloride PARICUTIN --
NMNH 114724 Volcanic Sublimate PARICUTIN --
NMNH 114725 Sal Ammoniac PARICUTIN --
NMNH 114726 Unidentified PARICUTIN --
NMNH 114727 Volcanic Ash (?) PARICUTIN --
NMNH 114728 Volcanic Sublimate PARICUTIN --
NMNH 116284-1 Basalt JORULLO 10 Dec 1946
NMNH 116284-10A Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-10B Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-11A Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-11B Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-11C Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-12 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-13A Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-13B Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-14 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-15 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-16 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-17 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-18 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-19 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-1A Basalt JORULLO 10 Dec 1946
NMNH 116284-1B Basalt JORULLO 10 Dec 1946
NMNH 116284-2 Volcanic Ash JORULLO 11 Dec 1946
NMNH 116284-20A Basalt JORULLO 12 Dec 1946
NMNH 116284-20B Basalt JORULLO 12 Dec 1946
NMNH 116284-20C Basalt JORULLO 12 Dec 1946
NMNH 116284-21B Basalt JORULLO 12 Dec 1946
NMNH 116284-21C Basalt JORULLO 12 Dec 1946
NMNH 116284-22 Volcanic Ash JORULLO 12 Dec 1946
NMNH 116284-23 Volcanic Ash JORULLO 12 Dec 1946
NMNH 116284-24 Basalt JORULLO 12 Dec 1946
NMNH 116284-3 Volcanic Ash JORULLO 11 Dec 1946
NMNH 116284-4 Basalt JORULLO 11 Dec 1946
NMNH 116284-5 Volcanic Ash JORULLO 11 Dec 1946
NMNH 116284-6 Volcanic Bomb JORULLO 12 Dec 1946
NMNH 116284-7 Volcanic Bomb JORULLO 12 Dec 1946
NMNH 116284-8 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116284-9 Andesitic Rock JORULLO 12 Dec 1946
NMNH 116289-1 Lava PARICUTIN --
NMNH 116289-10 Lava PARICUTIN, ZAPICHU 10 Jun 1947
NMNH 116289-11 Lava PARICUTIN 5 Sep 1947
NMNH 116289-12 Lava PARICUTIN 30 Nov 1947
NMNH 116289-13 Lava PARICUTIN 2 Sep 1948
NMNH 116289-14 Basaltic Andesite PARICUTIN 19 May 1949
NMNH 116289-15 Basaltic Andesite PARICUTIN 13 Dec 1949
NMNH 116289-16 Basaltic Andesite PARICUTIN 1 Sep 1950
NMNH 116289-17 Basaltic Andesite PARICUTIN 25 May 1951
NMNH 116289-18 Basaltic Andesite PARICUTIN 28 Nov 1951
NMNH 116289-19 Basaltic Andesite PARICUTIN, NUEVO JUATITA 8 Mar 1952
NMNH 116289-2 Lava PARICUTIN --
NMNH 116289-20 Xenolithic Volcanic Bomb PARICUTIN 1 May 1943
NMNH 116289-21 Dacitic Xenolith PARICUTIN 1 Jan 1943
NMNH 116289-22 Xenolith PARICUTIN --
NMNH 116289-23 Granitic Xenolith PARICUTIN --
NMNH 116289-3 Lava PARICUTIN --
NMNH 116289-4 Lava PARICUTIN --
NMNH 116289-5 Lava PARICUTIN --
NMNH 116289-6 Lava PARICUTIN --
NMNH 116289-7 Lava PARICUTIN --
NMNH 116289-8 Lava PARICUTIN, AHUAN VENT --
NMNH 116289-9 Lava PARICUTIN, ZAPICHU 9 Apr 1947
NMNH 116290 Aluminous Basalt PARICUTIN --
NMNH 116291-1 Lava PARICUTIN --
NMNH 116291-2 Lava PARICUTIN --
NMNH 116291-3 Lava PARICUTIN --
NMNH 116291-4 Basaltic Volcanic Bomb PARICUTIN 21 Jun 1943
NMNH 116291-5 Lava PARICUTIN --
NMNH 116292-1 Volcanic Ash PARICUTIN 25 Mar 1943
NMNH 116292-2 Volcanic Ash PARICUTIN 27 Mar 1943
NMNH 116292-3 Lapilli PARICUTIN 18 Jul 1943
NMNH 116292-4 Lava PARICUTIN 16 Jul 1943
NMNH 116292-5 Basaltic Volcanic Bomb PARICUTIN --
NMNH 116292-6 Basaltic Volcanic Bomb PARICUTIN --
NMNH 116292-7 Xenolithic Volcanic Bomb PARICUTIN 4 Feb 1944
NMNH 116292-8 Xenolithic Volcanic Bomb PARICUTIN 4 Feb 1944
NMNH 116292-9 Xenolithic Volcanic Bomb PARICUTIN 4 Feb 1944
NMNH 116293-1 Obsidian Xenolith PARICUTIN 1 Jul 1945
NMNH 116293-1 Pumice PARICUTIN --
NMNH 116293-10 Lava PARICUTIN --
NMNH 116293-11 Volcanic Bomb PARICUTIN --
NMNH 116293-12 Volcanic Bomb PARICUTIN --
NMNH 116293-2 White Xenolith PARICUTIN 1 Mar 1944
NMNH 116293-3 Xenolith PARICUTIN 1 Jan 1943
NMNH 116293-4 Dacitic Xenolith PARICUTIN 1 Jan 1943
NMNH 116293-5 Dacitic Xenolith PARICUTIN --
NMNH 116293-6 Xenolith PARICUTIN --
NMNH 116293-7 Lava PARICUTIN --
NMNH 116293-8 Lava PARICUTIN --
NMNH 116293-9 Lava PARICUTIN --
NMNH 116294-1 Lava PARICUTIN 1 Jan 1945
NMNH 116294-10 Volcanic Bomb PARICUTIN 1 Jan 1945
NMNH 116294-11 Lava PARICUTIN 1 Jan 1945
NMNH 116294-12 Lava PARICUTIN 1 Jan 1945
NMNH 116294-13 Lava PARICUTIN 1 Jan 1945
NMNH 116294-14 Lava PARICUTIN 1 Jan 1945
NMNH 116294-15 Lava PARICUTIN 1 Jan 1945
NMNH 116294-16 Lava PARICUTIN 1 Jan 1945
NMNH 116294-17 Lava PARICUTIN 1 Jan 1945
NMNH 116294-18 Lava PARICUTIN 1 Jan 1945
NMNH 116294-19 Lava PARICUTIN 1 Jan 1945
NMNH 116294-2 Basaltic Volcanic Bomb PARICUTIN 1 Jan 1945
NMNH 116294-20 Lava PARICUTIN 1 Jan 1945
NMNH 116294-21 Lava PARICUTIN 1 Jan 1946
NMNH 116294-22 Xenolith PARICUTIN 1 Jan 1946
NMNH 116294-23 Volcanic Bomb PARICUTIN 1 Jan 1946
NMNH 116294-24 Lava PARICUTIN 7 Feb 1946
NMNH 116294-25 Lava PARICUTIN 1 Jan 1946
NMNH 116294-26 Lava PARICUTIN 1 Jan 1946
NMNH 116294-27 Lava PARICUTIN 1 Jan 1946
NMNH 116294-28 Lava PARICUTIN 1 Jan 1946
NMNH 116294-29 Xenolithic Volcanic Bomb PARICUTIN 31 Jan 1946
NMNH 116294-3 Lava PARICUTIN 1 Jan 1945
NMNH 116294-4 Lava PARICUTIN 1 Jan 1945
NMNH 116294-5 Volcanic Bomb PARICUTIN 1 Jan 1945
NMNH 116294-6 Lava PARICUTIN 1 Jan 1945
NMNH 116294-7 Lava PARICUTIN 1 Jan 1945
NMNH 116294-8 Lava PARICUTIN 1 Jan 1945
NMNH 116294-9 Lava PARICUTIN 1 Jan 1945
NMNH 116295-1 Basalt PARICUTIN 23 Dec 1946
NMNH 116295-10 Lava PARICUTIN, PUERTECITO 25 Feb 1947
NMNH 116295-11 Lava PARICUTIN 30 May 1947
NMNH 116295-12 Xenolith PARICUTIN --
NMNH 116295-13 Volcanic Bomb PARICUTIN 10 Jun 1947
NMNH 116295-14 Volcanic Bomb PARICUTIN 10 Jun 1947
NMNH 116295-16 Volcanic Bomb PARICUTIN 15 Jun 1947
NMNH 116295-17 Lava PARICUTIN, JUATITO 21 Aug 1947
NMNH 116295-18 Lava PARICUTIN, PUERTECITO 28 Aug 1947
NMNH 116295-19 Lava PARICUTIN 28 Aug 1947
NMNH 116295-2 Basalt PARICUTIN 26 Dec 1946
NMNH 116295-20 Lava PARICUTIN 20 Sep 1947
NMNH 116295-21 Lava PARICUTIN 29 Sep 1947
NMNH 116295-22 Lava PARICUTIN 24 Sep 1947
NMNH 116295-23 Lava PARICUTIN 24 Sep 1947
NMNH 116295-24 Lava PARICUTIN 29 Sep 1947
NMNH 116295-25 Lava PARICUTIN 29 Sep 1947
NMNH 116295-26 Lava PARICUTIN 1 Oct 1947
NMNH 116295-27 Lava PARICUTIN 1 Oct 1947
NMNH 116295-28 Volcanic Bomb PARICUTIN 30 Nov 1947
NMNH 116295-29 Basaltic Andesite PARICUTIN 30 Nov 1947
NMNH 116295-3 Lava PARICUTIN 9 Jan 1947
NMNH 116295-30 Lava PARICUTIN 30 Dec 1947
NMNH 116295-31 Volcanic Bomb (?) PARICUTIN --
NMNH 116295-32 Lava PARICUTIN 12 Jan 1948
NMNH 116295-33 Salic Xenolith PARICUTIN, TZINTZUNGO, CERRO DE 22 Jan 1948
NMNH 116295-34 Basaltic Lava PARICUTIN 2 Sep 1948
NMNH 116295-35 Xenolith PARICUTIN, TZINTZUNGO, CERRO DE 1 Apr 1948
NMNH 116295-36 Lava PARICUTIN, PARACHO, CERROS DE 2 Aug 1948
NMNH 116295-37 Lava PARICUTIN 18 Nov 1948
NMNH 116295-4 Lava PARICUTIN 9 Jan 1947
NMNH 116295-5 Lava PARICUTIN 18 Jan 1947
NMNH 116295-6 Lava PARICUTIN 18 Jan 1947
NMNH 116295-7 Lava PARICUTIN, CAPATZIN 18 Jan 1947
NMNH 116295-8 Lava PARICUTIN, AHUAN 20 Feb 1947
NMNH 116295-9 Lava PARICUTIN, PUERTECITO 20 Feb 1947
NMNH 116296-1 Basaltic Andesite PARICUTIN 1 Jan 1949
NMNH 116296-10 Basaltic Andesite PARICUTIN 8 Jul 1950
NMNH 116296-11 Basaltic Andesite PARICUTIN 1 Jan 1950
NMNH 116296-12 Basaltic Andesite PARICUTIN 1 Jan 1950
NMNH 116296-13 Basaltic Andesite PARICUTIN 1 Jan 1947
NMNH 116296-14 Basaltic Andesite PARICUTIN 1 Jan 1950
NMNH 116296-15 Basaltic Andesite PARICUTIN 1 Jan 1950
NMNH 116296-16 Basaltic Andesite PARICUTIN 1 Jan 1950
NMNH 116296-17 Basaltic Andesite PARICUTIN 29 Dec 1950
NMNH 116296-18 Basaltic Andesite PARICUTIN 11 Mar 1951
NMNH 116296-19 Basaltic Andesite PARICUTIN 11 Mar 1951
NMNH 116296-2 Basaltic Andesite PARICUTIN 1 Jan 1949
NMNH 116296-20 Basaltic Andesite PARICUTIN 11 Mar 1951
NMNH 116296-21 Basaltic Andesite PARICUTIN 25 May 1951
NMNH 116296-22 Basaltic Andesite PARICUTIN 11 Jul 1951
NMNH 116296-23 Basaltic Andesite PARICUTIN 11 Jul 1951
NMNH 116296-24 Basaltic Andesite PARICUTIN 11 Jul 1951
NMNH 116296-25 Basaltic Andesite PARICUTIN 12 Jul 1951
NMNH 116296-26 Basaltic Andesite PARICUTIN 11 Jul 1951
NMNH 116296-27 Basaltic Andesite PARICUTIN 15 Oct 1951
NMNH 116296-28 Basaltic Andesite PARICUTIN --
NMNH 116296-29 Volcanic Ash PARICUTIN 29 Jan 1952
NMNH 116296-3 Basaltic Andesite PARICUTIN 17 Oct 1949
NMNH 116296-30 Basaltic (?) Andesite PARICUTIN 1 Jan 1952
NMNH 116296-31 Basaltic (?) Andesite PARICUTIN 30 Apr 1952
NMNH 116296-32 Basaltic Andesite PARICUTIN 30 Apr 1952
NMNH 116296-33 Basaltic Andesite PARICUTIN 31 Jan 1952
NMNH 116296-34 Basaltic Andesite PARICUTIN 30 Apr 1952
NMNH 116296-35 Monzonite (?) PARICUTIN --
NMNH 116296-36 Basaltic Andesite PARICUTIN, NUEVO JUATITA 27 Oct 1952
NMNH 116296-37 Monzonite (?) PARICUTIN --
NMNH 116296-38 Monzonite (?) PARICUTIN --
NMNH 116296-4 Basaltic Andesite PARICUTIN 17 Oct 1949
NMNH 116296-5 Basaltic Andesite PARICUTIN 14 Dec 1949
NMNH 116296-6 Basaltic Andesite PARICUTIN 20 Feb 1950
NMNH 116296-7 Basaltic Andesite PARICUTIN 14 Dec 1949
NMNH 116296-8 Basaltic Andesite PARICUTIN 27 Apr 1950
NMNH 116296-9 Basaltic Andesite PARICUTIN 14 Dec 1949
NMNH 116297-1 Tuff VALLE DE SANTIAGO --
NMNH 116297-2 Tuff VALLE DE SANTIAGO --
NMNH 116297-3 Tuff VALLE DE SANTIAGO --
NMNH 116297-4 Tuff VALLE DE SANTIAGO --
NMNH 116297-5 Tuff VALLE DE SANTIAGO --
NMNH 116300-1 Volcanic Ash PARICUTIN 18 Dec 1946
NMNH 116300-10 Volcanic Ash PARICUTIN 24 Apr 1947
NMNH 116300-11 Volcanic Ash PARICUTIN 2 Nov 1947
NMNH 116300-12 Volcanic Ash PARICUTIN 5 Nov 1947
NMNH 116300-13 Volcanic Ash PARICUTIN 8 Nov 1947
NMNH 116300-14 Volcanic Ash PARICUTIN 12 Nov 1947
NMNH 116300-15 Volcanic Ash PARICUTIN 17 Nov 1947
NMNH 116300-16 Volcanic Ash PARICUTIN 21 Nov 1947
NMNH 116300-17 Volcanic Ash PARICUTIN 22 Nov 1947
NMNH 116300-18 Volcanic Ash PARICUTIN 23 Nov 1947
NMNH 116300-19 Volcanic Ash PARICUTIN 8 Dec 1947
NMNH 116300-2 Volcanic Ash PARICUTIN 3 Jan 1947
NMNH 116300-20 Volcanic Ash PARICUTIN 16 Dec 1947
NMNH 116300-21 Volcanic Ash PARICUTIN 20 Dec 1947
NMNH 116300-22 Volcanic Ash PARICUTIN 25 Dec 1947
NMNH 116300-23 Volcanic Ash PARICUTIN 26 Dec 1947
NMNH 116300-24 Volcanic Ash PARICUTIN 27 Dec 1947
NMNH 116300-25 Volcanic Ash PARICUTIN 30 Dec 1947
NMNH 116300-26 Volcanic Ash PARICUTIN 9 Jan 1947
NMNH 116300-27 Volcanic Ash PARICUTIN 18 Jan 1947
NMNH 116300-28 Volcanic Ash PARICUTIN 27 Jan 1947
NMNH 116300-29 Volcanic Ash PARICUTIN 22 Mar 1947
NMNH 116300-3 Volcanic Ash PARICUTIN 7 Jan 1947
NMNH 116300-30 Volcanic Ash PARICUTIN 24 Oct 1947
NMNH 116300-32 Volcanic Ash PARICUTIN 18 Dec 1947
NMNH 116300-33 Volcanic Ash PARICUTIN 18 Dec 1947
NMNH 116300-34 Volcanic Ash PARICUTIN 19 Dec 1947
NMNH 116300-35 Volcanic Ash PARICUTIN 26 Jan 1948
NMNH 116300-36 Volcanic Ash PARICUTIN 28 Jan 1948
NMNH 116300-37 Volcanic Ash PARICUTIN 21 Feb 1948
NMNH 116300-38 Volcanic Ash PARICUTIN 25 Feb 1948
NMNH 116300-39 Volcanic Ash PARICUTIN 28 Feb 1948
NMNH 116300-4 Volcanic Ash PARICUTIN 13 Jan 1947
NMNH 116300-40 Volcanic Ash PARICUTIN 25 Mar 1948
NMNH 116300-41 Volcanic Ash PARICUTIN 18 May 1948
NMNH 116300-42 Volcanic Ash PARICUTIN 29 Jun 1948
NMNH 116300-43 Volcanic Ash PARICUTIN 29 Sep 1948
NMNH 116300-44 Volcanic Ash PARICUTIN 18 Jan 1947
NMNH 116300-45 Volcanic Ash PARICUTIN 9 Feb 1947
NMNH 116300-46 Volcanic Ash PARICUTIN 10 Feb 1947
NMNH 116300-5 Volcanic Ash PARICUTIN 16 Jan 1947
NMNH 116300-6 Volcanic Ash PARICUTIN 31 Jan 1947
NMNH 116300-7 Volcanic Ash PARICUTIN 5 Feb 1947
NMNH 116300-8 Volcanic Ash PARICUTIN 18 Mar 1947
NMNH 116300-9 Volcanic Ash PARICUTIN 18 Apr 1947
NMNH 116301-1 Volcanic Ash PARICUTIN 20 Jan 1947
NMNH 116301-2 Volcanic Ash PARICUTIN 6 Mar 1948
NMNH 116301-3 Volcanic Ash PARICUTIN 6 Mar 1948
NMNH 116301-4 Volcanic Ash PARICUTIN 31 Mar 1948
NMNH 116302-1 Volcanic Ash PARICUTIN 18 Mar 1948
NMNH 116302-2 Volcanic Ash PARICUTIN 18 Nov 1948
NMNH 116302-3 Volcanic Ash PARICUTIN 18 Nov 1948
NMNH 116325-1 Volcanic Rock PARICUTIN --
NMNH 116325-2 Volcanic Rock PARICUTIN --
NMNH 116595-1 Granite JORULLO --
NMNH 116595-10 Basaltic Andesite JORULLO --
NMNH 116595-11 Basaltic Andesite JORULLO --
NMNH 116595-12 Basaltic Andesite JORULLO --
NMNH 116595-13 Basalt JORULLO --
NMNH 116595-14 Granite JORULLO --
NMNH 116595-15 Granite JORULLO --
NMNH 116595-16 Granite JORULLO --
NMNH 116595-17 Basalt JORULLO --
NMNH 116595-18 Basaltic Andesite JORULLO --
NMNH 116595-19 Basaltic Andesite JORULLO --
NMNH 116595-2 Basaltic Andesite JORULLO --
NMNH 116595-20 Basaltic Andesite JORULLO --
NMNH 116595-21 Basaltic Andesite JORULLO --
NMNH 116595-22 Basalt JORULLO, VOLCAN DEL NORTE --
NMNH 116595-23 Basaltic Andesite JORULLO --
NMNH 116595-24 Granite JORULLO --
NMNH 116595-25 Basaltic Andesite JORULLO --
NMNH 116595-26 Basaltic Andesite JORULLO --
NMNH 116595-27 Basalt JORULLO --
NMNH 116595-28 Basalt JORULLO --
NMNH 116595-29 Basaltic Andesite JORULLO --
NMNH 116595-3 Basaltic Andesite JORULLO --
NMNH 116595-33 Granite Xenolith JORULLO --
NMNH 116595-34 Granite Xenolith JORULLO --
NMNH 116595-35 Granite Xenolith JORULLO --
NMNH 116595-4 Basaltic Andesite JORULLO --
NMNH 116595-5 Basaltic Andesite JORULLO --
NMNH 116595-6 Basaltic Andesite JORULLO --
NMNH 116595-7 Basaltic Andesite JORULLO --
NMNH 116595-8 Altered Basalt JORULLO --
NMNH 116595-9 Basaltic Andesite JORULLO --
NMNH 117253-75 Lava -- --
NMNH 117253-76 Lava -- --
NMNH 117253-77 Lava Hoya Alvarez --
NMNH 117253-78 Lava Hoya Alvarez --
NMNH 117253-79 Lava Hoya Alvarez --
NMNH 117253-80 Lava Hoya Alvarez --
NMNH 117253-81 Lava Hoya Alvarez --
NMNH 117254-113 Lava -- --
NMNH 117628-1 Charcoal Jorullo --
NMNH 117628-10 Basalt Parícutin --
NMNH 117628-100 Scoria La Batea --
NMNH 117628-101 Scoria La Batea --
NMNH 117628-102 Scoria La Batea --
NMNH 117628-103 Basalt -- --
NMNH 117628-104 Scoria Hoya La Cintora --
NMNH 117628-105 Scoria Hoya Solis --
NMNH 117628-106 Basalt Hoya Solis --
NMNH 117628-107 Basalt -- --
NMNH 117628-108 Tuff -- --
NMNH 117628-109 Tuff -- --
NMNH 117628-11 Basalt Parícutin --
NMNH 117628-110 Tuff -- --
NMNH 117628-111 Basalt -- --
NMNH 117628-112 Basalt -- --
NMNH 117628-113 Basalt -- --
NMNH 117628-114 Basalt -- --
NMNH 117628-115 Scoria La Pecina Maar --
NMNH 117628-116 Basalt -- --
NMNH 117628-117 Basalt -- --
NMNH 117628-118 Volcanic Rock -- --
NMNH 117628-119 Basalt -- --
NMNH 117628-12 Basalt Parícutin --
NMNH 117628-120 Scoria -- --
NMNH 117628-121 Scoria -- --
NMNH 117628-122 Scoria -- --
NMNH 117628-123 Scoria -- --
NMNH 117628-124 Scoria -- --
NMNH 117628-125 Plagioclase -- --
NMNH 117628-126 Scoria -- --
NMNH 117628-127 Scoria -- --
NMNH 117628-128 Scoria -- --
NMNH 117628-129 Basalt -- --
NMNH 117628-13 Sal Ammoniac Parícutin --
NMNH 117628-130 Scoria -- --
NMNH 117628-131 Basalt -- --
NMNH 117628-132 Scoria -- --
NMNH 117628-133 Scoria La Joya Maar --
NMNH 117628-134 Scoria La Joya Maar --
NMNH 117628-135 Scoria -- --
NMNH 117628-136 Basalt Volcanes de Zacapu --
NMNH 117628-14 Scoria Parícutin --
NMNH 117628-15 Scoria Parícutin --
NMNH 117628-16 Scoria Parícutin --
NMNH 117628-17 Scoria Parícutin --
NMNH 117628-18 Andesite Rincón de Parangueo --
NMNH 117628-19 Basalt Rincón de Parangueo --
NMNH 117628-2 Basalt Jorullo --
NMNH 117628-20 Dacite Cerro La Mina --
NMNH 117628-21 Basalt Cerro La Mina --
NMNH 117628-22 Basalt Cerro La Mina --
NMNH 117628-23 Basalt Cerro La Mina --
NMNH 117628-24 Basalt Cerro La Mina --
NMNH 117628-25 Scoria -- --
NMNH 117628-26 Scoria -- --
NMNH 117628-27 Scoria -- --
NMNH 117628-28 Scoria -- --
NMNH 117628-29 Scoria -- --
NMNH 117628-3 Ash Jorullo --
NMNH 117628-30 Scoria -- --
NMNH 117628-31 Scoria -- --
NMNH 117628-32 Scoria -- --
NMNH 117628-33 Basalt Maar San Nicolas --
NMNH 117628-34 Scoria Maar San Nicolas --
NMNH 117628-35 Scoria Maar San Nicolas --
NMNH 117628-36 Scoria Maar San Nicolas --
NMNH 117628-37 Scoria Maar San Nicolas --
NMNH 117628-38 Scoria Maar San Nicolas --
NMNH 117628-39 Ash Cerro Buenavista --
NMNH 117628-4 Lapilli Jorullo --
NMNH 117628-40 Basalt Cerro Buenavista --
NMNH 117628-41 Plagioclase Cerro Buenavista --
NMNH 117628-42 Scoria Cerro Buenavista --
NMNH 117628-43 Scoria Cerro Buenavista --
NMNH 117628-44 Basalt Cerro Las Silletas --
NMNH 117628-45 Scoria Cerro Las Silletas --
NMNH 117628-46 Scoria Cerro Las Silletas --
NMNH 117628-47 Basalt Cerro Las Silletas --
NMNH 117628-48 Basalt Hoya Estrada --
NMNH 117628-49 Scoria Hoya Estrada --
NMNH 117628-5 Ash Parícutin --
NMNH 117628-50 Scoria Hoya Estrada --
NMNH 117628-51 Basalt Hoya Estrada --
NMNH 117628-52 Pumice Hoya Estrada --
NMNH 117628-53 Basalt Hoya Estrada --
NMNH 117628-54 Pumice Hoya Estrada --
NMNH 117628-55 Rhyodacite Hoya Estrada --
NMNH 117628-56 Basalt Hoya Estrada --
NMNH 117628-57 Tuff Cerro San Andres --
NMNH 117628-58 Pyroclastic Rock Maar San Nicolas --
NMNH 117628-59 Tuff -- --
NMNH 117628-6 Xenolith Parícutin --
NMNH 117628-60 Scoria Hoya Blanca --
NMNH 117628-61 Tuff Hoya Blanca --
NMNH 117628-62 Basalt Hoya Blanca --
NMNH 117628-63 Basalt Hoya Blanca --
NMNH 117628-64 Tuff Hoya Blanca --
NMNH 117628-65 Tuff Hoya Estrada --
NMNH 117628-66 Tuff -- --
NMNH 117628-67 Tuff -- --
NMNH 117628-68 Scoria -- --
NMNH 117628-69 Scoria -- --
NMNH 117628-7 Xenolith Parícutin --
NMNH 117628-70 Scoria -- --
NMNH 117628-71 Tuff -- --
NMNH 117628-72 Basalt -- --
NMNH 117628-73 Basalt La Batea --
NMNH 117628-74 Basalt La Batea --
NMNH 117628-75 Scoria La Batea --
NMNH 117628-76 Basalt -- --
NMNH 117628-77 Basalt San Vincente Joyuela --
NMNH 117628-78 Basalt Hoya Alvarez --
NMNH 117628-79 Basalt Hoya Alvarez --
NMNH 117628-8 Basalt Parícutin --
NMNH 117628-80 Scoria Hoya Alvarez --
NMNH 117628-81 Scoria Hoya Alvarez --
NMNH 117628-82 Scoria -- --
NMNH 117628-83 Troctolite Xenolith -- --
NMNH 117628-84 Troctolite Xenolith -- --
NMNH 117628-85 Scoria Magdalena Crater --
NMNH 117628-86 Scoria Hoya Alvarez --
NMNH 117628-87 Cinder La Batea --
NMNH 117628-88 Cinder La Batea --
NMNH 117628-89 Basalt Hoya La Cintora --
NMNH 117628-9 Basalt Parícutin --
NMNH 117628-90 Basalt Hoya La Cintora --
NMNH 117628-91 Basalt Hoya La Cintora --
NMNH 117628-92 Basalt Hoya La Alberca --
NMNH 117628-93 Scoria Hoya La Alberca --
NMNH 117628-94 Basalt Hoya La Alberca --
NMNH 117628-95 Tuff Hoya La Alberca --
NMNH 117628-96 Scoria Hoya La Alberca --
NMNH 117628-97 Tuff Hoya La Cintora --
NMNH 117628-98 Tuff -- --
NMNH 117628-99 Scoria Cerro Chupin --
NMNH 117802-18 Basaltic Andesite Paricutin --

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