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Biostratigraphy, Age, and Paleoenvironment of the Pliocene Beaufort Formation on Meighen Island, Canadian Arctic Archipelago

Product Code: USPE551
Series: GSA Special Papers
Author/Editor: Authors: R.W. Barendregt, J.V. Matthews Jr., V. Behan-Pelletier, J. Brigham-Grette, J.G. Fyles, L.E. Ovenden, D.H. McNeil, E. Brouwers, L. Marincovich, N. Rybczynski, and T.L. Fletcher
Publication Date: 08 September 2021
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GSA Special Paper 551

The Beaufort Formation records extraordinary details of Arctic environments and amplified temperatures at approximately modern levels of atmospheric CO2. It was deposited during the Neogene on the western side of what is now the Canadian Arctic Archipelago. Meighen Island is a key locality for studying this formation because marine sediments there are interbedded with terrestrial fossiliferous sands. The biostratigraphic succession, fossils from the marine beds, and paleomagnetic data from the Bjaere Bay region of the island suggest two potential ages for the studied exposures: either continuous deposition at ca. 3.0 Ma, or a sequence of deposits at ca. 4.5 Ma and 3.4 Ma. The sediments appear to encompass at least two eustatic highstands of sea level and a particularly warm climate interval of the Pliocene Arctic.

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Type: Book
Ten Digit ISBN:
Thirteen Digit ISBN: 9780813725512
Publisher: GSA
Binding: Paperback
Pages: 39
Weight: 0.29 kg


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