Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances
Surface sediments at Lakes Fryxell, Vanda and Brownworth in the Antarctic Dry Valleys (ADV) were investigated as analogs for the cold, dry environment on Mars. Sediments were sampled from regions surrounding the lakes and from the ice cover on top of the lakes. The ADV sediments were studied using R...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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ftdlr:oai:elib.dlr.de:86364 2023-05-15T13:59:58+02:00 Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances Bishop, J.L. Englert, P. Patel, S. Tirsch, D. Roy, A. J. Koerberl, C. Böttger, Ute Hanke, F. Jaumann, R. 2014-11 https://elib.dlr.de/86364/ unknown Royal Society Publishing Bishop, J.L. und Englert, P. und Patel, S. und Tirsch, D. und Roy, A. J. und Koerberl, C. und Böttger, Ute und Hanke, F. und Jaumann, R. (2014) Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances. Philosophical Transactions of the Royal Society A, 372 (201401). Royal Society Publishing. DOI:10.1098/rsta.2014.0198 <https://doi.org/10.1098/rsta.2014.0198> ISSN 1364-503X Planetengeologie Experimentelle Planetenphysik Zeitschriftenbeitrag PeerReviewed 2014 ftdlr https://doi.org/10.1098/rsta.2014.0198 2019-09-08T22:54:22Z Surface sediments at Lakes Fryxell, Vanda and Brownworth in the Antarctic Dry Valleys (ADV) were investigated as analogs for the cold, dry environment on Mars. Sediments were sampled from regions surrounding the lakes and from the ice cover on top of the lakes. The ADV sediments were studied using Raman spectra of individual grains and reflectance spectra of bulk particulate samples and compared with previous analyses of subsurface and lakebottom sediments. Elemental abundances were coordinated with the spectral data in order to assess trends in sediment alteration. The surface sediments in this study were compared with lakebottom sediments [1] and samples from soil pits [2, 3]. Feldspar, quartz and pyroxene are common minerals found in all the sediments. Minor abundances of carbonate, chlorite, actinolite and allophane are also found in the surface sediments, and are similar to minerals found in greater abundance in the lakebottom sediments. Surface sediment formation is dominated by physical processes; a few cm below the surface chemical alteration sets in, while lakebottom sediments experience bio-mineralization. Characterizing the mineralogic variations in these samples provides insights into the alteration processes occurring in the ADV and supports understanding alteration in the cold and dry environment on Mars. Other Non-Article Part of Journal/Newspaper Antarc* Antarctic German Aerospace Center: elib - DLR electronic library Antarctic Brownworth ENVELOPE(162.750,162.750,-77.433,-77.433) Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) The Antarctic Vanda ENVELOPE(161.550,161.550,-77.533,-77.533) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372 2030 20140198 |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
unknown |
topic |
Planetengeologie Experimentelle Planetenphysik |
spellingShingle |
Planetengeologie Experimentelle Planetenphysik Bishop, J.L. Englert, P. Patel, S. Tirsch, D. Roy, A. J. Koerberl, C. Böttger, Ute Hanke, F. Jaumann, R. Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances |
topic_facet |
Planetengeologie Experimentelle Planetenphysik |
description |
Surface sediments at Lakes Fryxell, Vanda and Brownworth in the Antarctic Dry Valleys (ADV) were investigated as analogs for the cold, dry environment on Mars. Sediments were sampled from regions surrounding the lakes and from the ice cover on top of the lakes. The ADV sediments were studied using Raman spectra of individual grains and reflectance spectra of bulk particulate samples and compared with previous analyses of subsurface and lakebottom sediments. Elemental abundances were coordinated with the spectral data in order to assess trends in sediment alteration. The surface sediments in this study were compared with lakebottom sediments [1] and samples from soil pits [2, 3]. Feldspar, quartz and pyroxene are common minerals found in all the sediments. Minor abundances of carbonate, chlorite, actinolite and allophane are also found in the surface sediments, and are similar to minerals found in greater abundance in the lakebottom sediments. Surface sediment formation is dominated by physical processes; a few cm below the surface chemical alteration sets in, while lakebottom sediments experience bio-mineralization. Characterizing the mineralogic variations in these samples provides insights into the alteration processes occurring in the ADV and supports understanding alteration in the cold and dry environment on Mars. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Bishop, J.L. Englert, P. Patel, S. Tirsch, D. Roy, A. J. Koerberl, C. Böttger, Ute Hanke, F. Jaumann, R. |
author_facet |
Bishop, J.L. Englert, P. Patel, S. Tirsch, D. Roy, A. J. Koerberl, C. Böttger, Ute Hanke, F. Jaumann, R. |
author_sort |
Bishop, J.L. |
title |
Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances |
title_short |
Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances |
title_full |
Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances |
title_fullStr |
Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances |
title_full_unstemmed |
Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances |
title_sort |
mineralogical analyses of surface sediments in the antarctic dry valleys: coordinated analyses of raman spectra, reflectance spectra and elemental abundances |
publisher |
Royal Society Publishing |
publishDate |
2014 |
url |
https://elib.dlr.de/86364/ |
long_lat |
ENVELOPE(162.750,162.750,-77.433,-77.433) ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(161.550,161.550,-77.533,-77.533) |
geographic |
Antarctic Brownworth Fryxell The Antarctic Vanda |
geographic_facet |
Antarctic Brownworth Fryxell The Antarctic Vanda |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Bishop, J.L. und Englert, P. und Patel, S. und Tirsch, D. und Roy, A. J. und Koerberl, C. und Böttger, Ute und Hanke, F. und Jaumann, R. (2014) Mineralogical analyses of surface sediments in the Antarctic Dry Valleys: Coordinated analyses of Raman spectra, reflectance spectra and elemental abundances. Philosophical Transactions of the Royal Society A, 372 (201401). Royal Society Publishing. DOI:10.1098/rsta.2014.0198 <https://doi.org/10.1098/rsta.2014.0198> ISSN 1364-503X |
op_doi |
https://doi.org/10.1098/rsta.2014.0198 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
372 |
container_issue |
2030 |
container_start_page |
20140198 |
_version_ |
1766268890276429824 |