The Klondike goldfields and Pleistocene environments of Beringia
The Klondike goldfields of Yukon, Canada, contain a key record of Pleistocene Beringia, the region of Alaska, Siberia, and Yukon that remained largely unglaciated during the late Cenozoic. A concentration of mining exposures, with relict permafrost that is locally more than 700,000 years old, provid...
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2009
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/106003fb-6c26-4269-b0b9-ad905d758c1f 2024-09-15T17:52:40+00:00 The Klondike goldfields and Pleistocene environments of Beringia Froese, D.G. Zazula, G.D. Westgate, J.A. Preece, S.J. Sanborn, P.T. Reyes, A.V. Pearce, N.J.G. 2009-01-01 https://pure.qub.ac.uk/en/publications/106003fb-6c26-4269-b0b9-ad905d758c1f https://doi.org/10.1130/GSATG54A.1 http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-70349292690&md5=1273ea1f27d64668a2ded75ca921519d eng eng https://pure.qub.ac.uk/en/publications/106003fb-6c26-4269-b0b9-ad905d758c1f info:eu-repo/semantics/restrictedAccess Froese , D G , Zazula , G D , Westgate , J A , Preece , S J , Sanborn , P T , Reyes , A V & Pearce , N J G 2009 , ' The Klondike goldfields and Pleistocene environments of Beringia ' , GSA Today , vol. 19 , no. 8 , pp. 4-10 . https://doi.org/10.1130/GSATG54A.1 /dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology article 2009 ftqueensubelpubl https://doi.org/10.1130/GSATG54A.1 2024-06-25T14:19:36Z The Klondike goldfields of Yukon, Canada, contain a key record of Pleistocene Beringia, the region of Alaska, Siberia, and Yukon that remained largely unglaciated during the late Cenozoic. A concentration of mining exposures, with relict permafrost that is locally more than 700,000 years old, provides exceptional preservation of paleoenvironmental archives and a new perspective on the nature of paleoenvironments during the Pleistocene. A critical feature is the stratigraphic association of distal tephra beds with these paleoenvironmental archives, which facilitates their regional correlation and, in many cases, provides independent ages for the paleoenvironmental assemblages. Paleoenvironmental analyses of fossil arctic ground-squirrel middens and buried vegetation indicate the presence of cryoxerophilous ("steppe-tundra") vegetation growing on well-drained substrates with deep active layers (seasonal thaw depths) during cold intervals of the Pleistocene. Studies of full-glacial paleosols and cryostratigraphic relations of associated ground ice indicate the importance of active loess deposition and surface vegetation cover in maintaining the functionally distinct mammoth-steppe biome, which supported grazing mega-fauna populations, including mammoth, horse, and bison. Article in Journal/Newspaper Arctic ground squirrel Ice permafrost Tundra Alaska Beringia Siberia Yukon Queen's University Belfast Research Portal GSA Today 19 8 4 |
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Queen's University Belfast Research Portal |
op_collection_id |
ftqueensubelpubl |
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English |
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/dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology |
spellingShingle |
/dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology Froese, D.G. Zazula, G.D. Westgate, J.A. Preece, S.J. Sanborn, P.T. Reyes, A.V. Pearce, N.J.G. The Klondike goldfields and Pleistocene environments of Beringia |
topic_facet |
/dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology |
description |
The Klondike goldfields of Yukon, Canada, contain a key record of Pleistocene Beringia, the region of Alaska, Siberia, and Yukon that remained largely unglaciated during the late Cenozoic. A concentration of mining exposures, with relict permafrost that is locally more than 700,000 years old, provides exceptional preservation of paleoenvironmental archives and a new perspective on the nature of paleoenvironments during the Pleistocene. A critical feature is the stratigraphic association of distal tephra beds with these paleoenvironmental archives, which facilitates their regional correlation and, in many cases, provides independent ages for the paleoenvironmental assemblages. Paleoenvironmental analyses of fossil arctic ground-squirrel middens and buried vegetation indicate the presence of cryoxerophilous ("steppe-tundra") vegetation growing on well-drained substrates with deep active layers (seasonal thaw depths) during cold intervals of the Pleistocene. Studies of full-glacial paleosols and cryostratigraphic relations of associated ground ice indicate the importance of active loess deposition and surface vegetation cover in maintaining the functionally distinct mammoth-steppe biome, which supported grazing mega-fauna populations, including mammoth, horse, and bison. |
format |
Article in Journal/Newspaper |
author |
Froese, D.G. Zazula, G.D. Westgate, J.A. Preece, S.J. Sanborn, P.T. Reyes, A.V. Pearce, N.J.G. |
author_facet |
Froese, D.G. Zazula, G.D. Westgate, J.A. Preece, S.J. Sanborn, P.T. Reyes, A.V. Pearce, N.J.G. |
author_sort |
Froese, D.G. |
title |
The Klondike goldfields and Pleistocene environments of Beringia |
title_short |
The Klondike goldfields and Pleistocene environments of Beringia |
title_full |
The Klondike goldfields and Pleistocene environments of Beringia |
title_fullStr |
The Klondike goldfields and Pleistocene environments of Beringia |
title_full_unstemmed |
The Klondike goldfields and Pleistocene environments of Beringia |
title_sort |
klondike goldfields and pleistocene environments of beringia |
publishDate |
2009 |
url |
https://pure.qub.ac.uk/en/publications/106003fb-6c26-4269-b0b9-ad905d758c1f https://doi.org/10.1130/GSATG54A.1 http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-70349292690&md5=1273ea1f27d64668a2ded75ca921519d |
genre |
Arctic ground squirrel Ice permafrost Tundra Alaska Beringia Siberia Yukon |
genre_facet |
Arctic ground squirrel Ice permafrost Tundra Alaska Beringia Siberia Yukon |
op_source |
Froese , D G , Zazula , G D , Westgate , J A , Preece , S J , Sanborn , P T , Reyes , A V & Pearce , N J G 2009 , ' The Klondike goldfields and Pleistocene environments of Beringia ' , GSA Today , vol. 19 , no. 8 , pp. 4-10 . https://doi.org/10.1130/GSATG54A.1 |
op_relation |
https://pure.qub.ac.uk/en/publications/106003fb-6c26-4269-b0b9-ad905d758c1f |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1130/GSATG54A.1 |
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GSA Today |
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19 |
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8 |
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4 |
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