Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations
Abstract We present a granulometric study of emerged pebble beach ridges in the Fort Williams Point, Greenwich Island, Antarctic Peninsula. We studied 8 beach ridges from the shore up to 13.5 m above current sea level. The beach ridges are made of volcanic material from the surrounding relief, but a...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.551.8832 2023-05-15T13:57:41+02:00 Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations E. Santana J. F. Dumont The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.551.8832 http://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.551.8832 http://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf marine occurrences are no older than 6500 14C yr BP text ftciteseerx 2016-01-08T11:35:59Z Abstract We present a granulometric study of emerged pebble beach ridges in the Fort Williams Point, Greenwich Island, Antarctic Peninsula. We studied 8 beach ridges from the shore up to 13.5 m above current sea level. The beach ridges are made of volcanic material from the surrounding relief, but also include glacially transported gneiss and granodiorite pebble and cobble. Based on granulometric distribution analysis of 2100 samples from 39 locations we identified evidence of 4 sequences of 1 to 3 ridges. Most of the material seems to be reworked from a till. Pavement formation by iceberg between the sequences of beach ridges suggests periods of lower temperature. The interpretation suggests that sequences of beach ridge construction formed during warmer periods of the late Holocene. This occurs in the framework of an isostatic postglacial uplift allowing the progressive mobilization of periglaciar material. Text Antarc* Antarctic Antarctic Peninsula Greenwich Island Iceberg* Unknown Antarctic Antarctic Peninsula Greenwich Greenwich Island ENVELOPE(-59.783,-59.783,-62.517,-62.517) Williams Point ENVELOPE(67.617,67.617,-67.817,-67.817) Williams, Point ENVELOPE(67.617,67.617,-67.817,-67.817) Fort Williams ENVELOPE(-59.700,-59.700,-62.450,-62.450) |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
topic |
marine occurrences are no older than 6500 14C yr BP |
spellingShingle |
marine occurrences are no older than 6500 14C yr BP E. Santana J. F. Dumont Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations |
topic_facet |
marine occurrences are no older than 6500 14C yr BP |
description |
Abstract We present a granulometric study of emerged pebble beach ridges in the Fort Williams Point, Greenwich Island, Antarctic Peninsula. We studied 8 beach ridges from the shore up to 13.5 m above current sea level. The beach ridges are made of volcanic material from the surrounding relief, but also include glacially transported gneiss and granodiorite pebble and cobble. Based on granulometric distribution analysis of 2100 samples from 39 locations we identified evidence of 4 sequences of 1 to 3 ridges. Most of the material seems to be reworked from a till. Pavement formation by iceberg between the sequences of beach ridges suggests periods of lower temperature. The interpretation suggests that sequences of beach ridge construction formed during warmer periods of the late Holocene. This occurs in the framework of an isostatic postglacial uplift allowing the progressive mobilization of periglaciar material. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
E. Santana J. F. Dumont |
author_facet |
E. Santana J. F. Dumont |
author_sort |
E. Santana |
title |
Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations |
title_short |
Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations |
title_full |
Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations |
title_fullStr |
Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations |
title_full_unstemmed |
Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island, Antarctic Peninsula; a possible result from Holocene climate fluctuations |
title_sort |
granulometry of pebble beach ridges in fort williams point, greenwich island, antarctic peninsula; a possible result from holocene climate fluctuations |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.551.8832 http://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf |
long_lat |
ENVELOPE(-59.783,-59.783,-62.517,-62.517) ENVELOPE(67.617,67.617,-67.817,-67.817) ENVELOPE(67.617,67.617,-67.817,-67.817) ENVELOPE(-59.700,-59.700,-62.450,-62.450) |
geographic |
Antarctic Antarctic Peninsula Greenwich Greenwich Island Williams Point Williams, Point Fort Williams |
geographic_facet |
Antarctic Antarctic Peninsula Greenwich Greenwich Island Williams Point Williams, Point Fort Williams |
genre |
Antarc* Antarctic Antarctic Peninsula Greenwich Island Iceberg* |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Greenwich Island Iceberg* |
op_source |
http://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.551.8832 http://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766265502092492800 |