Sediment and ice characteristics at a buried ice-wedge system at Barrow ...

Barrow, the northernmost point in Alaska, is one of the most intensively studied areas in the Arctic. However, paleoenvironmental evidence is limited for northern Alaska for the Lateglacial-Holocene transition. For a regional paleoenvironmental reconstruction, we investigated a permafrost ice-wedge...

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Bibliographic Details
Main Authors: Meyer, Hanno, Schirrmeister, Lutz, Andreev, Andrei A, Wagner, Dirk, Hubberten, Hans-Wolfgang, Yoshikawa, Kenji, Bobrov, Anatoly A, Wetterich, Sebastian, Opel, Thomas, Kandiano, Evgenia S, Brown, Jerry
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2010
Subjects:
AWI
Multiple investigations
Monitoring
AK-Land_2004_Fairbanks_Barrow
AK-Land_2006_Fairbanks_Barrow
AWI Arctic Land Expedition
International Polar Year 2007-2008 IPY
Barrow
Ice
International Polar Year
IPY
permafrost
wedge*
Alaska
Online Access:https://dx.doi.org/10.1594/pangaea.816847
https://doi.pangaea.de/10.1594/PANGAEA.816847
Description
Summary:Barrow, the northernmost point in Alaska, is one of the most intensively studied areas in the Arctic. However, paleoenvironmental evidence is limited for northern Alaska for the Lateglacial-Holocene transition. For a regional paleoenvironmental reconstruction, we investigated a permafrost ice-wedge tunnel near Barrow, Alaska. The studied site was first excavated in the early 1960s and intercepts a buried ice-wedge system at 3-6 m depth below the surface. A multi-methodological approach was applied to this buried ice-wedge system and the enclosing sediments, which in their combination, give new insight into the Late Quaternary environmental and climate history. Results of geochronological, sedimentological, cryolithological, paleoecological, isotope geochemical and microbiological studies reflect different stages of mid to late Wisconsin (MW to LW), Allerod (AD), Younger Dryas (YD), Preboreal (PB), and Late Holocene paleoenvironmental evolution. The LW age of the site is indicated by AMS dates in the ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...

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