The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia
Basic data on the geology and geochemistry of obsidian from the Lake Krasnoe source in Chukotka (Northeastern Siberia) are reported for the first time. The data are based on 2009 fieldwork and analytical studies of igneous rock samples. The lake shore and surrounding parts of the Rarytkin Range were...
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ftneicon:oai:rour.neicon.ru:rour/276912 2023-05-15T15:44:15+02:00 The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia Kuzmin, Yaroslav V. Glascock, Michael D. Popov, Vladimir K. Budnitskiy, Sergey Y. Dikova, Margarita A. Nozdrachev, Evgeniy A. Grebennikov, Andrei V. 2018 https://openrepository.ru/article?id=276912 eng eng vtls:000672542 https://openrepository.ru/article?id=276912 Archaeological and anthropological sciences. 2018. Vol. 10, № 3. P. 599-614 Красное озеро Чукотка обсидиан статьи в журналах info:eu-repo/semantics/article 2018 ftneicon 2020-07-21T12:27:26Z Basic data on the geology and geochemistry of obsidian from the Lake Krasnoe source in Chukotka (Northeastern Siberia) are reported for the first time. The data are based on 2009 fieldwork and analytical studies of igneous rock samples. The lake shore and surrounding parts of the Rarytkin Range were thoroughly examined. Two geochemical types of rhyolitic obsidian were recognized for the first time: (1) metaluminous obsidian related to the fine-grained crystalline rocks and (2) peralkaline obsidian corresponding to ignimbrite ash-flows or lapilli-tuffs composition. Both types are related to the final phase of acidic volcanism in the Western Kamchatkan-Koryak Volcanic Belt. Based on the results obtained, we conclude that accumulation of obsidian pebbles in the lake’s modern beach deposits is related to silicic melts that erupted during the late Eocene-early Oligocene in the form of extrusive domes or pyroclastic flows, which are now either covered by Quaternary sediments or located below the water level. The Lake Krasnoe obsidian was intensively used by the ancient populations of Chukotka as a raw material for making stone tools. It was also occasionally transported to Alaska across the Bering Strait in later prehistory. The distances between source and utilization sites are up to 700– 1100 km. Geochemical data for Lake Krasnoe obsidian, based on neutron activation analysis and X-ray fluorescence that are presented here, can now be used for provenance studies in the Northeastern Siberia and adjacent regions of northern North America. Article in Journal/Newspaper Bering Strait Chukotka Koryak ЧУКОТКА Alaska Beringia Siberia NORA (National aggregator of open repositories of Russian universities) Bering Strait |
institution |
Open Polar |
collection |
NORA (National aggregator of open repositories of Russian universities) |
op_collection_id |
ftneicon |
language |
English |
topic |
Красное озеро Чукотка обсидиан |
spellingShingle |
Красное озеро Чукотка обсидиан Kuzmin, Yaroslav V. Glascock, Michael D. Popov, Vladimir K. Budnitskiy, Sergey Y. Dikova, Margarita A. Nozdrachev, Evgeniy A. Grebennikov, Andrei V. The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia |
topic_facet |
Красное озеро Чукотка обсидиан |
description |
Basic data on the geology and geochemistry of obsidian from the Lake Krasnoe source in Chukotka (Northeastern Siberia) are reported for the first time. The data are based on 2009 fieldwork and analytical studies of igneous rock samples. The lake shore and surrounding parts of the Rarytkin Range were thoroughly examined. Two geochemical types of rhyolitic obsidian were recognized for the first time: (1) metaluminous obsidian related to the fine-grained crystalline rocks and (2) peralkaline obsidian corresponding to ignimbrite ash-flows or lapilli-tuffs composition. Both types are related to the final phase of acidic volcanism in the Western Kamchatkan-Koryak Volcanic Belt. Based on the results obtained, we conclude that accumulation of obsidian pebbles in the lake’s modern beach deposits is related to silicic melts that erupted during the late Eocene-early Oligocene in the form of extrusive domes or pyroclastic flows, which are now either covered by Quaternary sediments or located below the water level. The Lake Krasnoe obsidian was intensively used by the ancient populations of Chukotka as a raw material for making stone tools. It was also occasionally transported to Alaska across the Bering Strait in later prehistory. The distances between source and utilization sites are up to 700– 1100 km. Geochemical data for Lake Krasnoe obsidian, based on neutron activation analysis and X-ray fluorescence that are presented here, can now be used for provenance studies in the Northeastern Siberia and adjacent regions of northern North America. |
format |
Article in Journal/Newspaper |
author |
Kuzmin, Yaroslav V. Glascock, Michael D. Popov, Vladimir K. Budnitskiy, Sergey Y. Dikova, Margarita A. Nozdrachev, Evgeniy A. Grebennikov, Andrei V. |
author_facet |
Kuzmin, Yaroslav V. Glascock, Michael D. Popov, Vladimir K. Budnitskiy, Sergey Y. Dikova, Margarita A. Nozdrachev, Evgeniy A. Grebennikov, Andrei V. |
author_sort |
Kuzmin, Yaroslav V. |
title |
The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia |
title_short |
The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia |
title_full |
The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia |
title_fullStr |
The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia |
title_full_unstemmed |
The Lake Krasnoe obsidian source in Chukotka (Northeastern Siberia): geological and geochemical frameworks for provenance studies in Beringia |
title_sort |
lake krasnoe obsidian source in chukotka (northeastern siberia): geological and geochemical frameworks for provenance studies in beringia |
publishDate |
2018 |
url |
https://openrepository.ru/article?id=276912 |
geographic |
Bering Strait |
geographic_facet |
Bering Strait |
genre |
Bering Strait Chukotka Koryak ЧУКОТКА Alaska Beringia Siberia |
genre_facet |
Bering Strait Chukotka Koryak ЧУКОТКА Alaska Beringia Siberia |
op_source |
Archaeological and anthropological sciences. 2018. Vol. 10, № 3. P. 599-614 |
op_relation |
vtls:000672542 https://openrepository.ru/article?id=276912 |
_version_ |
1766378556116434944 |