Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard
Permafrost degradation influences the morphology, biogeochemical cycling and hydrology of Arctic landscapes over a range of time scales. To reconstruct temporal patterns of early to late Holocene permafrost and thermokarst dynamics, site-specific palaeo-records are needed. Here we present a multi-pr...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.859554 2023-05-15T15:04:52+02:00 Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard Lenz, Josefine Wetterich, Sebastian Jones, Benjamin M Meyer, Hanno Bobrov, Anatoly A Grosse, Guido MEDIAN LATITUDE: 66.548336 * MEDIAN LONGITUDE: -164.378102 * SOUTH-BOUND LATITUDE: 66.461390 * WEST-BOUND LONGITUDE: -164.481390 * NORTH-BOUND LATITUDE: 66.582800 * EAST-BOUND LONGITUDE: -164.139440 * DATE/TIME START: 2008-07-01T00:00:00 * DATE/TIME END: 2009-04-22T00:00:00 2016-04-13 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.859554 https://doi.org/10.1594/PANGAEA.859554 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.859554 https://doi.org/10.1594/PANGAEA.859554 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Lenz, Josefine; Wetterich, Sebastian; Jones, Benjamin M; Meyer, Hanno; Bobrov, Anatoly A; Grosse, Guido (2016): Evidence of multiple thermokarst lake generations from an 11 800-year-old permafrost core on the northern Seward Peninsula, Alaska. Boreas, 20 pp, https://doi.org/10.1111/bor.12186 AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI PETA-CARB Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.859554 https://doi.org/10.1111/bor.12186 2023-01-20T07:33:43Z Permafrost degradation influences the morphology, biogeochemical cycling and hydrology of Arctic landscapes over a range of time scales. To reconstruct temporal patterns of early to late Holocene permafrost and thermokarst dynamics, site-specific palaeo-records are needed. Here we present a multi-proxy study of a 350-cm-long permafrost core from a drained lake basin on the northern Seward Peninsula, Alaska, revealing Lateglacial to Holocene thermokarst lake dynamics in a central location of Beringia. Use of radiocarbon dating, micropalaeontology (ostracods and testaceans), sedimentology (grain-size analyses, magnetic susceptibility, tephra analyses), geochemistry (total nitrogen and carbon, total organic carbon, d13Corg) and stable water isotopes (d18O, dD, d excess) of ground ice allowed the reconstruction of several distinct thermokarst lake phases. These include a pre-lacustrine environment at the base of the core characterized by the Devil Mountain Maar tephra (22 800±280 cal. a BP, Unit A), which has vertically subsided in places due to subsequent development of a deep thermokarst lake that initiated around 11 800 cal. a BP (Unit B). At about 9000 cal. a BP this lake transitioned from a stable depositional environment to a very dynamic lake system (Unit C) characterized by fluctuating lake levels, potentially intermediate wetland development, and expansion and erosion of shore deposits. Complete drainage of this lake occurred at 1060 cal. a BP, including post-drainage sediment freezing from the top down to 154 cm and gradual accumulation of terrestrial peat (Unit D), as well as uniform upward talik refreezing. This core-based reconstruction of multiple thermokarst lake generations since 11 800 cal. a BP improves our understanding of the temporal scales of thermokarst lake development from initiation to drainage, demonstrates complex landscape evolution in the ice-rich permafrost regions of Central Beringia during the Lateglacial and Holocene, and enhances our understanding of biogeochemical cycles in ... Dataset Arctic Ice Magnetic susceptibility permafrost Seward Peninsula Thermokarst Alaska Beringia PANGAEA - Data Publisher for Earth & Environmental Science Arctic Talik ENVELOPE(146.601,146.601,59.667,59.667) Peta ENVELOPE(36.866,36.866,63.158,63.158) ENVELOPE(-164.481390,-164.139440,66.582800,66.461390) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI PETA-CARB Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool |
spellingShingle |
AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI PETA-CARB Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool Lenz, Josefine Wetterich, Sebastian Jones, Benjamin M Meyer, Hanno Bobrov, Anatoly A Grosse, Guido Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard |
topic_facet |
AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI PETA-CARB Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool |
description |
Permafrost degradation influences the morphology, biogeochemical cycling and hydrology of Arctic landscapes over a range of time scales. To reconstruct temporal patterns of early to late Holocene permafrost and thermokarst dynamics, site-specific palaeo-records are needed. Here we present a multi-proxy study of a 350-cm-long permafrost core from a drained lake basin on the northern Seward Peninsula, Alaska, revealing Lateglacial to Holocene thermokarst lake dynamics in a central location of Beringia. Use of radiocarbon dating, micropalaeontology (ostracods and testaceans), sedimentology (grain-size analyses, magnetic susceptibility, tephra analyses), geochemistry (total nitrogen and carbon, total organic carbon, d13Corg) and stable water isotopes (d18O, dD, d excess) of ground ice allowed the reconstruction of several distinct thermokarst lake phases. These include a pre-lacustrine environment at the base of the core characterized by the Devil Mountain Maar tephra (22 800±280 cal. a BP, Unit A), which has vertically subsided in places due to subsequent development of a deep thermokarst lake that initiated around 11 800 cal. a BP (Unit B). At about 9000 cal. a BP this lake transitioned from a stable depositional environment to a very dynamic lake system (Unit C) characterized by fluctuating lake levels, potentially intermediate wetland development, and expansion and erosion of shore deposits. Complete drainage of this lake occurred at 1060 cal. a BP, including post-drainage sediment freezing from the top down to 154 cm and gradual accumulation of terrestrial peat (Unit D), as well as uniform upward talik refreezing. This core-based reconstruction of multiple thermokarst lake generations since 11 800 cal. a BP improves our understanding of the temporal scales of thermokarst lake development from initiation to drainage, demonstrates complex landscape evolution in the ice-rich permafrost regions of Central Beringia during the Lateglacial and Holocene, and enhances our understanding of biogeochemical cycles in ... |
format |
Dataset |
author |
Lenz, Josefine Wetterich, Sebastian Jones, Benjamin M Meyer, Hanno Bobrov, Anatoly A Grosse, Guido |
author_facet |
Lenz, Josefine Wetterich, Sebastian Jones, Benjamin M Meyer, Hanno Bobrov, Anatoly A Grosse, Guido |
author_sort |
Lenz, Josefine |
title |
Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard |
title_short |
Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard |
title_full |
Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard |
title_fullStr |
Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard |
title_full_unstemmed |
Single non-normalized data of electron probe analyses of all glass shard samples from the Seward Peninsula and the Lipari obsidian reference standard |
title_sort |
single non-normalized data of electron probe analyses of all glass shard samples from the seward peninsula and the lipari obsidian reference standard |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.859554 https://doi.org/10.1594/PANGAEA.859554 |
op_coverage |
MEDIAN LATITUDE: 66.548336 * MEDIAN LONGITUDE: -164.378102 * SOUTH-BOUND LATITUDE: 66.461390 * WEST-BOUND LONGITUDE: -164.481390 * NORTH-BOUND LATITUDE: 66.582800 * EAST-BOUND LONGITUDE: -164.139440 * DATE/TIME START: 2008-07-01T00:00:00 * DATE/TIME END: 2009-04-22T00:00:00 |
long_lat |
ENVELOPE(146.601,146.601,59.667,59.667) ENVELOPE(36.866,36.866,63.158,63.158) ENVELOPE(-164.481390,-164.139440,66.582800,66.461390) |
geographic |
Arctic Talik Peta |
geographic_facet |
Arctic Talik Peta |
genre |
Arctic Ice Magnetic susceptibility permafrost Seward Peninsula Thermokarst Alaska Beringia |
genre_facet |
Arctic Ice Magnetic susceptibility permafrost Seward Peninsula Thermokarst Alaska Beringia |
op_source |
Supplement to: Lenz, Josefine; Wetterich, Sebastian; Jones, Benjamin M; Meyer, Hanno; Bobrov, Anatoly A; Grosse, Guido (2016): Evidence of multiple thermokarst lake generations from an 11 800-year-old permafrost core on the northern Seward Peninsula, Alaska. Boreas, 20 pp, https://doi.org/10.1111/bor.12186 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.859554 https://doi.org/10.1594/PANGAEA.859554 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.859554 https://doi.org/10.1111/bor.12186 |
_version_ |
1766336617182658560 |