Geomorphology of subglacial volcanoes in the Azas Plateau, the Tuva Republic, Russia

Komatsu, G.; Arzhannikov, S.G.; Arzhannikova, Anastasia V.; Ershov, Kirill

doi:10.1016/j.geomorph.2006.12.002

Cited by 36 publications

(22 citation statements)

References 25 publications

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“…The size of the mesas analyzed (1.5-8 km across, 100-500 m tall) is in the same order of magnitude as that of terrestrial tuyas, which may reach horizontal dimensions up to 10 km (Komatsu et al, 2007a) and are 200-1000 m in height (Table 2).…”

Section: Origin Of Mesasmentioning

confidence: 97%

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Evidence of volcanic and glacial activity in Chryse and Acidalia Planitiae, Mars

Martínez-Alonso

Mellon

Banks

et al. 2011

Icarus

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Section: Origin Of Mesasmentioning

confidence: 97%

“…d Mathews (1947). e Komatsu et al (2007a). f Height could not be determined due to resolution constraints.…”

Section: Further Evidence Of Fluid and Volcanic Activitymentioning

confidence: 99%

Evidence of volcanic and glacial activity in Chryse and Acidalia Planitiae, Mars

Martínez-Alonso

Mellon

Banks

et al. 2011

Icarus

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“…Such a volume accounts for 87% of the total volume of Quaternary magma erupted in the Baikal rift system and adjacent regions of Mongolia (Demonterova 2002). The most striking difference between the Tuva and the other volcanic fields of the region is that the Quaternary volcanoes of Tuva were erupted beneath thick ice cover, forming classic tuya volcanoes (Grosvald 1965;Komatsu et al 2007). The anomalously large volcanic production is probably related to isostatic upwelling of the lithosphere after the onset of deglaciation and depressurization melting (Ivanov and Demonterova 2009).…”

Section: Discussionmentioning

confidence: 99%

Jom-Bolok Holocene volcanic field in the East Sayan Mts., Siberia, Russia: structure, style of eruptions, magma compositions, and radiocarbon dating

et al. 2011

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Jom-Bolok volcanic field is located in the East Sayan Mts. of Siberia (Russia), a portion of the Asian convergent zone. It is located at the boundary of the Riphean Tuva-Mongolia massif, which was probably reactivated because of the interplay between far-field tectonic stress derived from the India-Asia collision zone and extension in the south-western Baikal rift system. The volcanic field comprises a number of hawaiitic lava flows, of various lengths, which flowed down paleorivers. Flows were fed by fissure eruptions and the largest lava flow field was dated as 7,130±140 cal 14 C years BP using a buried organic sample found inside the associated cinder cone. This lava flow field is about 70 km long, ∼100 km 2 in area, and 7.9 km 3 in volume. The area and volume of this flow field ranks this eruption highly in the global record of fissure-fed effusive eruptions. This lava flow field makes up 97% of the entire Jom-Bolok volcanic field, a fact which raises a puzzling question: why and/or how did a relatively small-volume volcanic field produce such a large-volume individual eruption? A working hypothesis is that a pond of sublithospheric melt accumulated over a relatively prolonged period. This was then rapidly drained in response of tectonic changes triggered by unloading of ice in the Early Holocene.

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“…The basin is ellipsoidal in plan view and measures 250 × 70-100 km. Middle-late Pleistocene subglacial volcanoes (Litasov et al, 2001b;Komatsu et al, 2007a) in the Azas Plateau volcanic field may have produced jökulhlaup-type floods (Komatsu et al, 2007b).…”

Section: Todza Paleolakesmentioning

confidence: 99%

Quaternary paleolake formation and cataclysmic flooding along the upper Yenisei River

et al. 2009

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Geomorphology of subglacial volcanoes in the Azas Plateau, the Tuva Republic, Russia

Cited by 36 publications

References 25 publications

Evidence of volcanic and glacial activity in Chryse and Acidalia Planitiae, Mars

Evidence of volcanic and glacial activity in Chryse and Acidalia Planitiae, Mars

Jom-Bolok Holocene volcanic field in the East Sayan Mts., Siberia, Russia: structure, style of eruptions, magma compositions, and radiocarbon dating

Quaternary paleolake formation and cataclysmic flooding along the upper Yenisei River

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