Global Volcanism Program | Acigöl-Nevsehir

The Global Volcanism Program has no activity reports for Acigöl-Nevsehir.

The Global Volcanism Program has no Weekly Reports available for Acigöl-Nevsehir.

The Global Volcanism Program has no Bulletin Reports available for Acigöl-Nevsehir.

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.

Synonyms

Acigol-Neysehir

Cones

Feature Name

Feature Type

Elevation

Latitude

Longitude

Ayaktas Tepe

Cone

Kizil Tepe

Cone

Mercimek Tepe

Cone

Obruk Tepe

Cone

Craters

Feature Name

Feature Type

Elevation

Latitude

Longitude

Eski Acigöl

Maar

Domes

Feature Name

Feature Type

Elevation

Latitude

Longitude

Güneydag

Dome

Kaleci

Dome

Karniyarik

Dome

Kocadag Tepe
Kocatepe

Dome

1689 m

Korudagi

Dome

Kuzay

Dome

Taskesik Tepe

Dome

Vigla Tepe

Dome

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

213004

2080 BCE

1683 m / 5522 ft

38.537°N
34.621°E

Volcano Types

Caldera
Maar(s)
Lava dome(s)
Pyroclastic cone(s)

Rock Types

Major
Rhyolite
Dacite
Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km

127,863
127,863
218,469
2,253,483

Geological Summary

Acigöl-Nevsehir caldera is located in central Turkey and is traversed by the national highway between the towns of Acigöl and Nevsehir. The elliptical 7 x 8 km wide late-Pleistocene caldera is part of a now partially buried larger caldera and contains a group of maars, lava domes, basaltic lava flows, and pyroclastic cones. Three groups of obsidian lava flows have been dated; pre-collapse flows between about 190,000 and 180,000 years before present (BP), 75,000 yrs BP lava domes (such as Taskesik Tepe on the eastern side of the caldera) post-dating formation of the caldera, and young lava domes on the western caldera floor about 20,000 to 15,000 years old. Thirteen scoria layers from local tephras erupted between about 11,000 and 4,300 years ago were found in sediment cores in the late Pleistocene Eski Acigöl maar. An ash layer from this volcanic group overlies 2300-1850 BCE artifacts of Roman-Cappadocian age.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Bigazzi G, Yegingil Z, Ercan T, Oddone M, Ozdogan M, 1993. Fission track dating obsidians in central and northern Anatolia. Bull Volcanol, 55: 588-595.

Druitt T H, Brenchley P J, Gokten Y E, Francaviglia V, 1995. Late Quaternary rhyolitic eruptions from Acigol Complex, central Turkey. J Geol Soc London, 152: 655-667.

Froger J-L, Lenat J-F, Chorowicz J, Le Pennec J-L, Bourdier J-L, Kose O, Zimitoglu O, Gundogdu N M, Gourgaud A, 1998. Hidden calderas evidenced by multisource geophysical data; an example of Cappadocian calderas, central Anatolia. J. Volcanol. Geotherm. Res., 85: 99-128.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior.

Kuzucuoglu C, Pastre J-F, Black S, Ercan T, Fontugne M, Guillou H, Hatte C, Karabiyikoglu M, Orth P, Turkecan A, 1998. Identification and dating of tephra layers from Quaternary sedimentary sequences of Inner Anatolia, Turkey. J. Volcanol. Geotherm. Res., 85: 153-172.

Mellaart J, 1993. Descriptions (picturales) d'eruptions recentes du Hasan Dagi par les hommes du neolithique a Catal Hoyuk. L'Assoc Volc Europeenne (LAVE), 42: 17-30.

Pasquare G, 1968. Geology of the Cenozoic volcanic area of Central Anatolia. Roma Accad Nazionale Lincei Mem, 9: 55-204.

Eruptive History

There is data available for 5 confirmed Holocene eruptive periods.

2080 BCE ± 200 years Confirmed Eruption

Episode 1 | Eruption Episode

2080 BCE ± 200 years - Unknown

Evidence from Correlation: Anthropology

List of 3 Events for Episode 1

Start Date	End Date	Event Type
- - - -	- - - -	Explosion
- - - -	- - - -	Ash
- - - -	- - - -	Property Damage

2370 BCE ± 200 years Confirmed Eruption

Episode 1 | Eruption Episode

Tephra layer T17

2370 BCE ± 200 years - Unknown

Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Tephra layer T17

	Start Date	End Date	Event Type	Event Remarks
	- - - -	- - - -	Explosion
	- - - -	- - - -	Scoria

3500 BCE (?) Confirmed Eruption

Episode 1 | Eruption Episode

Tephra layer T15

3500 BCE (?) - Unknown

Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Tephra layer T15

	Start Date	End Date	Event Type	Event Remarks
	- - - -	- - - -	Explosion
	- - - -	- - - -	Scoria

6230 BCE (?) Confirmed Eruption

Episode 1 | Eruption Episode

Tephra layer T13

6230 BCE (?) - Unknown

Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Tephra layer T13

	Start Date	End Date	Event Type	Event Remarks
	- - - -	- - - -	Explosion
	- - - -	- - - -	Scoria

7810 BCE (?) Confirmed Eruption

Episode 1 | Eruption Episode

Tephra layer T10

7810 BCE (?) - Unknown

Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Tephra layer T10

	Start Date	End Date	Event Type	Event Remarks
	- - - -	- - - -	Explosion
	- - - -	- - - -	Scoria

Deformation History

There is no Deformation History data available for Acigöl-Nevsehir.

Emission History

There is no Emissions History data available for Acigöl-Nevsehir.

Photo Gallery

The Global Volcanism Program has no photographs available for Acigöl-Nevsehir.

GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Title: Geologic Map of Turkey (Eastern Sheet)
Publisher: Ludwig Reichert Verlag, Weisbaden, Germany
Country: Turkey
Year: 1985
Map Type: Geology
Scale: 1:2,000,000

Map of Geologic Map of Turkey (Eastern Sheet)

Title: Geologic Map of Turkey (Western Sheet)
Publisher: Ludwig Reichert Verlag, Weisbaden, Germany
Country: Turkey
Year: 1985
Map Type: Geology
Scale: 1:2,000,000

Map of Geologic Map of Turkey (Western Sheet)

Title: Syria, Iran, Iraq, Turkey, Jordan, Lebanon
Publisher: DMA Aerospace Center
Country: Mid-E
Year: 1982
Series: ONC
Map Type: Geographic
Scale: 1:1,000,000

Map of Syria, Iran, Iraq, Turkey, Jordan, Lebanon

Smithsonian Sample Collections Database

There are no samples for Acigöl-Nevsehir in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

External Sites

WOVOdat
   Single Volcano View
   Temporal Evolution of Unrest
   Side by Side Volcanoes

WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.

GVMID Data on Volcano Monitoring Infrastructure The Global Volcano Monitoring Infrastructure Database GVMID, is aimed at documenting and improving capabilities of volcano monitoring from the ground and space. GVMID should provide a snapshot and baseline view of the techniques and instrumentation that are in place at various volcanoes, which can be use by volcano observatories as reference to setup new monitoring system or improving networks at a specific volcano. These data will allow identification of what monitoring gaps exist, which can be then targeted by remote sensing infrastructure and future instrument deployments.

Volcanic Hazard Maps

The IAVCEI Commission on Volcanic Hazards and Risk has a Volcanic Hazard Maps database designed to serve as a resource for hazard mappers (or other interested parties) to explore how common issues in hazard map development have been addressed at different volcanoes, in different countries, for different hazards, and for different intended audiences. In addition to the comprehensive, searchable Volcanic Hazard Maps Database, this website contains information about diversity of volcanic hazard maps, illustrated using examples from the database. This site is for educational purposes related to volcanic hazard maps. Hazard maps found on this website should not be used for emergency purposes. For the most recent, official hazard map for a particular volcano, please seek out the proper institutional authorities on the matter.

MIROVA

Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.

MODVOLC Thermal Alerts

Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.

Sentinel Hub Playground

Sentinel Hub EO Browser

The Sentinel Hub Playground provides a quick look at any Sentinel-2 image in any combination of the bands and enhanced with image effects; Landsat 8, DEM and MODIS are also available. Sentinel Hub is an engine for processing of petabytes of satellite data. It is opening the doors for machine learning and helping hundreds of application developers worldwide. It makes Sentinel, Landsat, and other Earth observation imagery easily accessible for browsing, visualization and analysis. Sentinel Hub is operated by Sinergise

IRIS seismic stations/networks

Incorporated Research Institutions for Seismology (IRIS) Data Services map showing the location of seismic stations from all available networks (permanent or temporary) within a radius of 0.18° (about 20 km at mid-latitudes) from the given location of Acigöl-Nevsehir. Users can customize a variety of filters and options in the left panel. Note that if there are no stations are known the map will default to show the entire world with a "No data matched request" error notice.

UNAVCO GPS/GNSS stations

Geodetic Data Services map from UNAVCO showing the location of GPS/GNSS stations from all available networks (permanent or temporary) within a radius of 20 km from the given location of Acigöl-Nevsehir. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player.

DECADE Data

The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the Mapping Gas Emissions (MaGa) Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO₂ to the atmosphere, but installing CO₂ monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere.

Large Eruptions of Acigöl-Nevsehir

Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

EarthChem

EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).