Crater Basalt Volcanic Field

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  • Argentina
  • South America
  • Pyroclastic cone(s)
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 42.018°S
  • 70.194°W

  • 1344 m
    4408 ft

  • 358025
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Crater Basalt Volcanic Field.

The Global Volcanism Program has no Weekly Reports available for Crater Basalt Volcanic Field.

The Global Volcanism Program has no Bulletin Reports available for Crater Basalt Volcanic Field.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Continental crust (> 25 km)

Rock Types

Trachybasalt / Tephrite Basanite
Basalt / Picro-Basalt


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

Geological Summary

The Crater Basalt volcanic field in the northern Patagonia region of Argentina covers an area of about 700 sq km. The volcanic field lies about 400 km east of the Peru-Chile trench along the broad regional, NW-SE-trending Gastre fault system. Nine cinder cones and spatter cones produced blocky lava flows of alkali basaltic, basanitic, and trachybasaltic composition. One of the largest features of the volcanic field is Cerro Fermín, a cinder cone that produced a half dozen lava flows. The highest cone, 1344-m Cerro Negro, fed lava flows that traveled to the west, east, and then NE, where its distal margin is cut by a provincial road. Some of the lava flows, such as those from Cerro Ventana and Cerro Contreras, cover Holocene shorelines of playa lakes.

The Global Volcanism Program is not aware of any Holocene eruptions from Crater Basalt Volcanic Field. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Crater Basalt Volcanic Field page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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.


Feature Name Feature Type Elevation Latitude Longitude
Antitruz, Cerro Pyroclastic cone 1100 m
Contreras, Cerro Pyroclastic cone 1004 m
Fermin, Cerro Pyroclastic cone 1153 m
Guacha, Loma Pyroclastic cone
Huacha, Loma Pyroclastic cone 959 m
Negro, Cerro Pyroclastic cone 1344 m 42° 1' 6" S 70° 11' 38" W
Pinchuleu, Cerro Pyroclastic cone 1005 m
Ventana, Cerro Vent
Volcán, Cerro Pyroclastic cone 1025 m

The Global Volcanism Program has no photographs available for Crater Basalt Volcanic Field.


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Massaferro G I, Haller M J, D'Orazio M, Alric V I, 2006. Sub-recent volcanism in northern Patagonia: a tectonomagmatic approach. J Volc Geotherm Res, 155: 227-243.

Affiliated Databases

Large Eruptions of Crater Basalt Volcanic Field 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).
WOVOdat 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.
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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.