Qal'eh Hasan Ali

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 29.4°N
  • 57.57°E

  • Unknown
     

  • 232020
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Qal'eh Hasan Ali.

The Global Volcanism Program has no Weekly Reports available for Qal'eh Hasan Ali.

The Global Volcanism Program has no Bulletin Reports available for Qal'eh Hasan Ali.

The Qal'eh Hasan Ali volcanic field in SE Iran contains 14 maars of late Quaternary age. The maars were erupted through desert alluvium, granodioritic rocks, and Eocene volcanics in an area several hundred km away from the closest Quaternary volcanoes. The maars produced tephritic pyroclastic deposits. The diameters of the maars range from 150 to 1200 m; the largest, known as Great Crater, is 1.2 km wide and 200-300 m deep. The ages of the maars have been roughly estimated by degree of erosion as 5000-50,000 years (Milton, 1976-77).

The Global Volcanism Program is not aware of any Holocene eruptions from Qal'eh Hasan Ali. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Qal'eh Hasan Ali 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.


Craters

Feature Name Feature Type Elevation Latitude Longitude
Great Crater Maar 29° 24' 0" N 57° 34' 0" E
The circular crater near the center of this NASA Landsat image (with north to the top) is the largest maar of the Qal'eh Hasan Ali volcanic field in SE Iran. This maar, known as "Great Crater, " is 1.2 km wide and 200-300 m deep. It is one of 14 maars of late Quaternary age erupted through desert alluvium, granodioritic rocks, and Eocene volcanics in an area several hundred km away from the closest Quaternary volcanoes.

NASA Landsat7 image (worldwind.arc.nasa.gov)

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.

Milton D J, 1976-77. Qal'eh Hasan Ali maars, Central Iran. Bull Volc, 40: 201-208.

Volcano Types

Maar(s)

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Rock Types

Major
Trachybasalt / Tephrite Basanite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
5,159
5,159
33,367
511,150

Affiliated Databases

Large Eruptions of Qal'eh Hasan Ali 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.