DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip
Recent excavation in the new CRREL Permafrost Tunnel in Fox, Alaska provides a unique opportunity to study properties of Yedoma — late Pleistocene ice- and organic-rich syngenetic permafrost. Yedoma has been described at numerous sites across Interior Alaska, mainly within the Yukon-Tanana upland. T...
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Online Access: | https://doi.org/10.3389/feart.2021.758800.s001 https://figshare.com/articles/dataset/DataSheet1_Yedoma_Cryostratigraphy_of_Recently_Excavated_Sections_of_the_CRREL_Permafrost_Tunnel_Near_Fairbanks_Alaska_zip/19300538 |
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ftfrontimediafig:oai:figshare.com:article/19300538 2023-05-15T16:36:38+02:00 DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip Mikhail Kanevskiy Yuri Shur Nancy H. Bigelow Kevin L. Bjella Thomas A. Douglas Daniel Fortier Benjamin M. Jones M. Torre Jorgenson 2022-03-03T18:51:35Z https://doi.org/10.3389/feart.2021.758800.s001 https://figshare.com/articles/dataset/DataSheet1_Yedoma_Cryostratigraphy_of_Recently_Excavated_Sections_of_the_CRREL_Permafrost_Tunnel_Near_Fairbanks_Alaska_zip/19300538 unknown doi:10.3389/feart.2021.758800.s001 https://figshare.com/articles/dataset/DataSheet1_Yedoma_Cryostratigraphy_of_Recently_Excavated_Sections_of_the_CRREL_Permafrost_Tunnel_Near_Fairbanks_Alaska_zip/19300538 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change ice wedge thermokarst-cave ice intermediate layer cryostructures thermokarst thermal erosion late Pleistocene Dataset 2022 ftfrontimediafig https://doi.org/10.3389/feart.2021.758800.s001 2022-03-10T00:07:28Z Recent excavation in the new CRREL Permafrost Tunnel in Fox, Alaska provides a unique opportunity to study properties of Yedoma — late Pleistocene ice- and organic-rich syngenetic permafrost. Yedoma has been described at numerous sites across Interior Alaska, mainly within the Yukon-Tanana upland. The most comprehensive data on the structure and properties of Yedoma in this area have been obtained in the CRREL Permafrost Tunnel near Fairbanks — one of the most accessible large-scale exposures of Yedoma permafrost on Earth, which became available to researchers in the mid-1960s. Expansion of the new ∼4-m-high and ∼4-m-wide linear excavations, started in 2011 and ongoing, exposes an additional 300 m of well-preserved Yedoma and provides access to sediments deposited over the past 40,000 years, which will allow us to quantify rates and patterns of formation of syngenetic permafrost, depositional history and biogeochemical characteristics of Yedoma, and its response to a warmer climate. In this paper, we present results of detailed cryostratigraphic studies in the Tunnel and adjacent area. Data from our study include ground-ice content, the stable water isotope composition of the variety of ground-ice bodies, and radiocarbon age dates. Based on cryostratigraphic mapping of the Tunnel and results of drilling above and inside the Tunnel, six main cryostratigraphic units have been distinguished: 1) active layer; 2) modern intermediate layer (ice-rich silt); 3) relatively ice-poor Yedoma silt reworked by thermal erosion and thermokarst during the Holocene; 4) ice-rich late Pleistocene Yedoma silt with large ice wedges; 5) relatively ice-poor fluvial gravel; and 6) ice-poor bedrock. Our studies reveal significant differences in cryostratigraphy of the new and old CRREL Permafrost Tunnel facilities. Original syngenetic permafrost in the new Tunnel has been better preserved and less affected by erosional events during the period of Yedoma formation, although numerous features (e.g., bodies of thermokarst-cave ice, thaw ... Dataset Ice permafrost Thermokarst wedge* Alaska Yukon Frontiers: Figshare Fairbanks Yukon |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change ice wedge thermokarst-cave ice intermediate layer cryostructures thermokarst thermal erosion late Pleistocene |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change ice wedge thermokarst-cave ice intermediate layer cryostructures thermokarst thermal erosion late Pleistocene Mikhail Kanevskiy Yuri Shur Nancy H. Bigelow Kevin L. Bjella Thomas A. Douglas Daniel Fortier Benjamin M. Jones M. Torre Jorgenson DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change ice wedge thermokarst-cave ice intermediate layer cryostructures thermokarst thermal erosion late Pleistocene |
description |
Recent excavation in the new CRREL Permafrost Tunnel in Fox, Alaska provides a unique opportunity to study properties of Yedoma — late Pleistocene ice- and organic-rich syngenetic permafrost. Yedoma has been described at numerous sites across Interior Alaska, mainly within the Yukon-Tanana upland. The most comprehensive data on the structure and properties of Yedoma in this area have been obtained in the CRREL Permafrost Tunnel near Fairbanks — one of the most accessible large-scale exposures of Yedoma permafrost on Earth, which became available to researchers in the mid-1960s. Expansion of the new ∼4-m-high and ∼4-m-wide linear excavations, started in 2011 and ongoing, exposes an additional 300 m of well-preserved Yedoma and provides access to sediments deposited over the past 40,000 years, which will allow us to quantify rates and patterns of formation of syngenetic permafrost, depositional history and biogeochemical characteristics of Yedoma, and its response to a warmer climate. In this paper, we present results of detailed cryostratigraphic studies in the Tunnel and adjacent area. Data from our study include ground-ice content, the stable water isotope composition of the variety of ground-ice bodies, and radiocarbon age dates. Based on cryostratigraphic mapping of the Tunnel and results of drilling above and inside the Tunnel, six main cryostratigraphic units have been distinguished: 1) active layer; 2) modern intermediate layer (ice-rich silt); 3) relatively ice-poor Yedoma silt reworked by thermal erosion and thermokarst during the Holocene; 4) ice-rich late Pleistocene Yedoma silt with large ice wedges; 5) relatively ice-poor fluvial gravel; and 6) ice-poor bedrock. Our studies reveal significant differences in cryostratigraphy of the new and old CRREL Permafrost Tunnel facilities. Original syngenetic permafrost in the new Tunnel has been better preserved and less affected by erosional events during the period of Yedoma formation, although numerous features (e.g., bodies of thermokarst-cave ice, thaw ... |
format |
Dataset |
author |
Mikhail Kanevskiy Yuri Shur Nancy H. Bigelow Kevin L. Bjella Thomas A. Douglas Daniel Fortier Benjamin M. Jones M. Torre Jorgenson |
author_facet |
Mikhail Kanevskiy Yuri Shur Nancy H. Bigelow Kevin L. Bjella Thomas A. Douglas Daniel Fortier Benjamin M. Jones M. Torre Jorgenson |
author_sort |
Mikhail Kanevskiy |
title |
DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip |
title_short |
DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip |
title_full |
DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip |
title_fullStr |
DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip |
title_full_unstemmed |
DataSheet1_Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska.zip |
title_sort |
datasheet1_yedoma cryostratigraphy of recently excavated sections of the crrel permafrost tunnel near fairbanks, alaska.zip |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2021.758800.s001 https://figshare.com/articles/dataset/DataSheet1_Yedoma_Cryostratigraphy_of_Recently_Excavated_Sections_of_the_CRREL_Permafrost_Tunnel_Near_Fairbanks_Alaska_zip/19300538 |
geographic |
Fairbanks Yukon |
geographic_facet |
Fairbanks Yukon |
genre |
Ice permafrost Thermokarst wedge* Alaska Yukon |
genre_facet |
Ice permafrost Thermokarst wedge* Alaska Yukon |
op_relation |
doi:10.3389/feart.2021.758800.s001 https://figshare.com/articles/dataset/DataSheet1_Yedoma_Cryostratigraphy_of_Recently_Excavated_Sections_of_the_CRREL_Permafrost_Tunnel_Near_Fairbanks_Alaska_zip/19300538 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2021.758800.s001 |
_version_ |
1766026974957928448 |