SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION
Biostratigraphic and lithofacial studies of sediments in the Tankhoi Tertiary field, which evolution reflects transformations of the terrain in the Baikal region at the Oligocene-Miocene, Early-Middle Miocene, Miocene-Pliocene and Early-Late Pliocene transitions. The main part of the field is compos...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2015-09-01
|
| Series: | Геодинамика и тектонофизика |
| Subjects: | |
| Online Access: | https://www.gt-crust.ru/jour/article/view/27 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849772366366769152 |
|---|---|
| author | S. V. Rasskazov N. A. Lyamina I. V. Luzina G. P. Chernyaeva I. S. Chuvashova M. V. Usoltseva |
| author_facet | S. V. Rasskazov N. A. Lyamina I. V. Luzina G. P. Chernyaeva I. S. Chuvashova M. V. Usoltseva |
| author_sort | S. V. Rasskazov |
| collection | DOAJ |
| description | Biostratigraphic and lithofacial studies of sediments in the Tankhoi Tertiary field, which evolution reflects transformations of the terrain in the Baikal region at the Oligocene-Miocene, Early-Middle Miocene, Miocene-Pliocene and Early-Late Pliocene transitions. The main part of the field is composed of clastic molassoids formed during 'early orogen' stage in the coastal part of an extensive paleobasin with a slow water current and in shallow lakes of the Mishikha-Klyuevka and Osinovka river paleobasins that formed, respectively, at the Oligocene-Miocene and Early-Middle Miocene boundaries. In the Miocene, as suggested by analyses of malacofauna and diatoms, South Baikal was a major, quite deep paleolake. These water bodies were related in the Miocene as evidenced by the partial similarity of diatom species found in South Baikal and the Tunka valley, as well as the presence of similar endemic fauna species in the sediments. Accumulated coarse, mainly proluvial-alluvial deposits are indicators of the tectonic activity that resulted in a dramatic ‘late orogen’ increase of contrasting features of the regional terrain. |
| format | Article |
| id | doaj-art-7f944aee894e4be4bdd629c0acde49d6 |
| institution | DOAJ |
| issn | 2078-502X |
| language | English |
| publishDate | 2015-09-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj-art-7f944aee894e4be4bdd629c0acde49d62025-08-20T03:02:21ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2015-09-015410.5800/GT-2014-5-4-016527SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGIONS. V. Rasskazov0N. A. Lyamina1I. V. Luzina2G. P. Chernyaeva3I. S. Chuvashova4M. V. Usoltseva5Institute of the Earth’s Crust of SB RAS, Irkutsk, Russia Irkutsk State University, Irkutsk, RussiaIrkutskgeofizika, Irkutsk, RussiaIrkutskgeofizika, Irkutsk, RussiaInstitute of the Earth’s Crust of SB RAS, Irkutsk, RussiaInstitute of the Earth’s Crust of SB RAS, Irkutsk, Russia Irkutsk State University, Irkutsk, RussiaLimnological Institute of SB RAS, Irkutsk, RussiaBiostratigraphic and lithofacial studies of sediments in the Tankhoi Tertiary field, which evolution reflects transformations of the terrain in the Baikal region at the Oligocene-Miocene, Early-Middle Miocene, Miocene-Pliocene and Early-Late Pliocene transitions. The main part of the field is composed of clastic molassoids formed during 'early orogen' stage in the coastal part of an extensive paleobasin with a slow water current and in shallow lakes of the Mishikha-Klyuevka and Osinovka river paleobasins that formed, respectively, at the Oligocene-Miocene and Early-Middle Miocene boundaries. In the Miocene, as suggested by analyses of malacofauna and diatoms, South Baikal was a major, quite deep paleolake. These water bodies were related in the Miocene as evidenced by the partial similarity of diatom species found in South Baikal and the Tunka valley, as well as the presence of similar endemic fauna species in the sediments. Accumulated coarse, mainly proluvial-alluvial deposits are indicators of the tectonic activity that resulted in a dramatic ‘late orogen’ increase of contrasting features of the regional terrain.https://www.gt-crust.ru/jour/article/view/27baikalmiocenepliocenesedimentssmall mammalsfish faunamalacofaunafreshwater sponge speciesdiatomsleaf florapalynocomplexes |
| spellingShingle | S. V. Rasskazov N. A. Lyamina I. V. Luzina G. P. Chernyaeva I. S. Chuvashova M. V. Usoltseva SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION Геодинамика и тектонофизика baikal miocene pliocene sediments small mammals fish fauna malacofauna freshwater sponge species diatoms leaf flora palynocomplexes |
| title | SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION |
| title_full | SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION |
| title_fullStr | SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION |
| title_full_unstemmed | SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION |
| title_short | SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION |
| title_sort | sediments in the tertiary tankhoi field south baikal basin stratigraphy correlation and structural transformations in the baikal region |
| topic | baikal miocene pliocene sediments small mammals fish fauna malacofauna freshwater sponge species diatoms leaf flora palynocomplexes |
| url | https://www.gt-crust.ru/jour/article/view/27 |
| work_keys_str_mv | AT svrasskazov sedimentsinthetertiarytankhoifieldsouthbaikalbasinstratigraphycorrelationandstructuraltransformationsinthebaikalregion AT nalyamina sedimentsinthetertiarytankhoifieldsouthbaikalbasinstratigraphycorrelationandstructuraltransformationsinthebaikalregion AT ivluzina sedimentsinthetertiarytankhoifieldsouthbaikalbasinstratigraphycorrelationandstructuraltransformationsinthebaikalregion AT gpchernyaeva sedimentsinthetertiarytankhoifieldsouthbaikalbasinstratigraphycorrelationandstructuraltransformationsinthebaikalregion AT ischuvashova sedimentsinthetertiarytankhoifieldsouthbaikalbasinstratigraphycorrelationandstructuraltransformationsinthebaikalregion AT mvusoltseva sedimentsinthetertiarytankhoifieldsouthbaikalbasinstratigraphycorrelationandstructuraltransformationsinthebaikalregion |