Origin and transformation of organic carbon from the Hiawatha meteorite crater, North-West Greenland: a preliminary study
Garde, Adam A., Eisen, Olaf
ORCID: https://orcid.org/0000-0002-6380-962X, Fahnestock, Mark A., Funder, Svend, Guvad, Carsten, Haack, Henning, Kjær, Kurt H., Larsen, Nicolaj K., MacGregor, Joseph A., McDonald, Iain, Møller, Jette Dahl, Søndergaard, Anne Sofie, Waight, Tod E. and Weikusat, Christian
;
![](/images/orcid_16x16.png)
Contact
Olaf.Eisen [ at ] awi.de
Abstract
Glaciofluvial sand draining the newly discovered Hiawatha impact crater under the Greenland Ice Sheet in North-West Greenland contains shocked quartz, glasses derived from direct mineral melts, carbon-bearing glasses, particles of charcoal and transformed ('glassy') charcoal, as well as low-reflectance carbonaceous grains with tiny carbon spherules and mineral fragments. Some of these grains are interpreted as ejecta and perhaps plume material containing sublimated and re-deposited carbon. The only plausible carbon source of this carbon is subfossil Arctic vegetation including small conifer and angiosperm trees older than 50 ka and likely around 2.3 Ma in age, supporting a very young age of the crater.
Item Type
Article
Authors
Garde, Adam A., Eisen, Olaf
ORCID: https://orcid.org/0000-0002-6380-962X, Fahnestock, Mark A., Funder, Svend, Guvad, Carsten, Haack, Henning, Kjær, Kurt H., Larsen, Nicolaj K., MacGregor, Joseph A., McDonald, Iain, Møller, Jette Dahl, Søndergaard, Anne Sofie, Waight, Tod E. and Weikusat, Christian
;
![](/images/orcid_16x16.png)
Divisions
Primary Division
Programs
Helmholtz Research Programs > PACES II (2014-2020) > TOPIC 1: Changes and regional feedbacks in Arctic and Antarctic > WP 1.2: Ice sheet dynamics and mass balance
Primary Topic
Helmholtz Programs > Helmholtz Research Programs > PACES II (2014-2020) > TOPIC 1: Changes and regional feedbacks in Arctic and Antarctic > WP 1.2: Ice sheet dynamics and mass balance
Publication Status
Published
Eprint ID
47677
DOI
10.1016/j.egypro.2018.07.025
Cite as
Garde, A. A.
,
Eisen, O.
,
Fahnestock, M. A.
,
Funder, S.
,
Guvad, C.
,
Haack, H.
,
Kjær, K. H.
,
Larsen, N. K.
,
MacGregor, J. A.
,
McDonald, I.
,
Møller, J. D.
,
Søndergaard, A. S.
,
Waight, T. E.
and
Weikusat, C.
(2018):
Origin and transformation of organic carbon from the Hiawatha meteorite crater, North-West Greenland: a preliminary study
,
Energy Procedia,
146
,
pp. 17-22
.
doi: 10.1016/j.egypro.2018.07.025
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