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This data file contains the cosmogenic beryllium-10 (10Be), aluminum-26 (26Al), and chlorine-36 (36Cl) data from the frozen sediments underneath the Camp Century ice, produced at the Cosmogenic Nuclide Laboratory of the Lamont-Doherty Earth Observatory within National Science Foundation (NSF) Award 2114634 ('Collaborative Research: A fossil ecosystem under the ice: deciphering the glacialand vegetation history of northwest Greenland using long-lost Camp Century basal sediment'). These data help understanding the complexity of the 3 meters (m) of frozen sediment underneath the Camp Century ice core, and adds constraints to the question of past stability of this sector of the Greenland Ice Sheet. We have processed relatively small sub-samples we received from the University of Vermont team (lead PI Paul Bierman), by separating and de-contaminating quartz and feldspar, and measuring the cosmogenic isotopes listed above down the frozen sediment column. These important and complex data are currently prepared for publication under the lead of Lamont postdoc Joanna Charton.
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Project GreenDrill - Beryllium and Aluminum isotope data from Inglefield Land, northwestern Greenland and Prudhoe Dome ASIG core (2022-2026)
In 2022, we sampled pro-ice samples in Inglefield Land, north of Prudhoe Dome. In 2023, we sampled bedrock and sediment samples from underneath 509 meters (m) of ice ('ASIG core') and under 100 m of ice ('Winkie Core'). These samples, the first of their kind, form the core of the GreenDrill project and have been analysed for multi-cosmogenic-isotopes, InfraRed Stimulated Luminescence (IRSL), and biomarkers. Cosmogenic nuclide analysis were done at Lamont and the University at Buffalo, IRSL measurements at UT Arlington, and biomarker analysis at University at Buffalo. This dataset holds Beryllium and Aluminum isotope data of the rock samples from Inglefield Land and of the 'ASIG core', drilled in 2023 at Prudhoe Dome Summit.
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- Award ID(s):
- 1933927
- PAR ID:
- 10675300
- Publisher / Repository:
- NSF Arctic Data Center
- Date Published:
- Subject(s) / Keyword(s):
- cosmogenic 10Be erosion rates Prudhoe Dome 26Al beryllium isotopes Inglefield Land bedrock frozen sediments ASIG core Greenland sub-ice drilling aluminum isotopes
- Format(s):
- Medium: X Other: text/xml
- Sponsoring Org:
- National Science Foundation
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