A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study
Abstract Surface textures and angularity–roundness characteristics of quartz sand grains of till from the base of the Greenland ice sheet at Camp Century were examined with a scanning electron microscope. Two basic populations are revealed; an angular component, which shows grains with edge abrasion...
Published in: | Journal of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
1980
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Online Access: | http://dx.doi.org/10.1017/s0022143000010340 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010340 |
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crcambridgeupr:10.1017/s0022143000010340 2024-03-03T08:44:55+00:00 A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study Whalley, W. B. Langway, C. C. 1980 http://dx.doi.org/10.1017/s0022143000010340 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010340 en eng Cambridge University Press (CUP) Journal of Glaciology volume 25, issue 91, page 125-132 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1980 crcambridgeupr https://doi.org/10.1017/s0022143000010340 2024-02-08T08:42:50Z Abstract Surface textures and angularity–roundness characteristics of quartz sand grains of till from the base of the Greenland ice sheet at Camp Century were examined with a scanning electron microscope. Two basic populations are revealed; an angular component, which shows grains with edge abrasion and attrition indicative of subglacial grinding, and a well-rounded component with the characteristics of aeolian transport. It is suggested that these two populations were mixed subglacially, the aeolian fraction having been produced at some stage before the ice sheet encroached over the area of their deposition. Article in Journal/Newspaper Greenland Ice Sheet Journal of Glaciology Cambridge University Press Greenland Journal of Glaciology 25 91 125 132 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Whalley, W. B. Langway, C. C. A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study |
topic_facet |
Earth-Surface Processes |
description |
Abstract Surface textures and angularity–roundness characteristics of quartz sand grains of till from the base of the Greenland ice sheet at Camp Century were examined with a scanning electron microscope. Two basic populations are revealed; an angular component, which shows grains with edge abrasion and attrition indicative of subglacial grinding, and a well-rounded component with the characteristics of aeolian transport. It is suggested that these two populations were mixed subglacially, the aeolian fraction having been produced at some stage before the ice sheet encroached over the area of their deposition. |
format |
Article in Journal/Newspaper |
author |
Whalley, W. B. Langway, C. C. |
author_facet |
Whalley, W. B. Langway, C. C. |
author_sort |
Whalley, W. B. |
title |
A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study |
title_short |
A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study |
title_full |
A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study |
title_fullStr |
A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study |
title_full_unstemmed |
A Scanning Electron Microscope Examination of Subglacial Quartz Grains from Camp Century Core, Greenland–A Preliminary Study |
title_sort |
scanning electron microscope examination of subglacial quartz grains from camp century core, greenland–a preliminary study |
publisher |
Cambridge University Press (CUP) |
publishDate |
1980 |
url |
http://dx.doi.org/10.1017/s0022143000010340 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010340 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet Journal of Glaciology |
genre_facet |
Greenland Ice Sheet Journal of Glaciology |
op_source |
Journal of Glaciology volume 25, issue 91, page 125-132 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000010340 |
container_title |
Journal of Glaciology |
container_volume |
25 |
container_issue |
91 |
container_start_page |
125 |
op_container_end_page |
132 |
_version_ |
1792500449654341632 |