Tunkin Depression

Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 51.5°N
  • 102.5°E

  • 1200 m
    3936 ft

  • 302050
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Tunkin Depression.

The Global Volcanism Program has no Weekly Reports available for Tunkin Depression.

The Global Volcanism Program has no Bulletin Reports available for Tunkin Depression.

The Tunkin Depression volcanic field (also known as the Tunka Depression) covers a broad area immediately west of the SW tip of Lake Baikal. The Khobok group of basaltic cinder cones near the village of Tunka, one of five groups of cinder cones characterized by some sources as late-Pleistocene to Holocene in age, has the largest concentration of vents. Drill cores show that the upper 500 m of the basin is filled with Quaternary tuffs and a dozen lava flows; subsidence continues, partially burying volcanic features. Other well-preserved cinder cones of probable Pleistocene age are located to the SE in the Khamar-Dayan Range. The youngest cinder cones and lava flows are in the NE part of the Tunkin Depression. The age of the latest eruptions has variously been considered to be Pleistocene-to-Holocene or late-Pleistocene.

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


Synonyms

Tunka Depression

Cones

Feature Name Feature Type Elevation Latitude Longitude
Khara-Boldok
    Ulyaborskiy
Cone
Khobok Group Cone
Kovrizhka Cone
Kutinsky Group
    Kutinskaya Group
Cone
Podgorny Cone
Svyashchennaya Cone
Talaya Group Cone
The ice-covered SW end of Lake Baikal cuts across this NASA Space Shuttle image. The snow-free lowlands west of the lake are partially occupied by the Tunkin Depression volcanic field, which covers a broad area west of the lake. The volcanic field (also known as the Tunka Depression) contains five groups of late-Pleistocene to Holocene cinder cones and lava flows, some of which are partially buried by sediments in the subsiding depression. The Angara River (top-center) flows from the NE into Lake Baikal.

NASA Space Shuttle image ISS002-305-15, 2001 (http://eol.jsc.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.

Hasenaka T, Litasov Y, Taniguchi H, Miyamoto T, Fujimaki H, 1999. Cenozoic volcanism in Siberia: a review. Center for Northeast Asian Studies, Tohoku Univ, no 3, p 249-272.

Rasskazov S V, 1994. Magmatism related to the eastern Siberia Rift system and the geodynamics. Bull Centres Rech Explor-Prod Elf Aquitaine, 18(2): 437-452.

Rasskazov S V, Kunk M J, Luhr J F, Bowring S A, Brandt I S, Brandt S B, Ivanov A V, 1996. Episodes of eruptions and composition variations of the Quaternary lavas in the Baikal Rift System (Ar-Ar and K-Ar dating of volcanism in the Dzhida River area). Russian Geol Geophys, 37(6): 1-12.

Whitford-Stark J L, 1987. A survey of Cenozoic volcanism on mainland Asia. Geol Soc Amer Spec Pap, 213: 1-74.

Volcano Types

Volcanic field

Tectonic Setting

Rift zone
Continental crust (> 25 km)

Rock Types

Major
Trachybasalt / Tephrite Basanite
Basalt / Picro-Basalt

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
431
431
6,533
63,490

Affiliated Databases

Large Eruptions of Tunkin Depression 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.