2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26
Abstract: Ripple-laminated sandy deposits at shallow water depths in four rivers on Jameson Land, East Greenland were sampled for optically stimulated luminescence (OSL) dating. Silt-sized grains have significantly higher equivalent doses (~1.1 Gy) than sand grains (~0.1 Gy). This suggests that coar...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.570.5568 2023-05-15T16:03:44+02:00 2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 Helena Alexanderson The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.570.5568 http://www.geochronometria.pl/pdf/geo_26/Geo26_01.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.570.5568 http://www.geochronometria.pl/pdf/geo_26/Geo26_01.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.geochronometria.pl/pdf/geo_26/Geo26_01.pdf luminescence dating OSL glaciofluvial fluvial bleaching Greenland text ftciteseerx 2016-01-08T12:30:31Z Abstract: Ripple-laminated sandy deposits at shallow water depths in four rivers on Jameson Land, East Greenland were sampled for optically stimulated luminescence (OSL) dating. Silt-sized grains have significantly higher equivalent doses (~1.1 Gy) than sand grains (~0.1 Gy). This suggests that coarse grain-size fractions are better bleached and more suitable than fine grains for OSL dating of glaciofluvial/fluvial sediments. A sample from a sidebar deposited during the spring flood yielded 1.0 Gy (~500 years) while a subaerial deposit was completely zeroed. The spring flood deposit is consid-ered to be most similar to deglacial conditions and incomplete bleaching of this amount (1 Gy) is generally not a significant source of error for sediments of Pleistocene age. Most samples have rather poor luminescence characteristics and are affected by thermal transfer if preheat temperatures at or above 260°C are used. Text East Greenland Greenland greenlandic Unknown Greenland Jameson Land ENVELOPE(-23.500,-23.500,71.167,71.167) |
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collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
luminescence dating OSL glaciofluvial fluvial bleaching Greenland |
spellingShingle |
luminescence dating OSL glaciofluvial fluvial bleaching Greenland Helena Alexanderson 2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 |
topic_facet |
luminescence dating OSL glaciofluvial fluvial bleaching Greenland |
description |
Abstract: Ripple-laminated sandy deposits at shallow water depths in four rivers on Jameson Land, East Greenland were sampled for optically stimulated luminescence (OSL) dating. Silt-sized grains have significantly higher equivalent doses (~1.1 Gy) than sand grains (~0.1 Gy). This suggests that coarse grain-size fractions are better bleached and more suitable than fine grains for OSL dating of glaciofluvial/fluvial sediments. A sample from a sidebar deposited during the spring flood yielded 1.0 Gy (~500 years) while a subaerial deposit was completely zeroed. The spring flood deposit is consid-ered to be most similar to deglacial conditions and incomplete bleaching of this amount (1 Gy) is generally not a significant source of error for sediments of Pleistocene age. Most samples have rather poor luminescence characteristics and are affected by thermal transfer if preheat temperatures at or above 260°C are used. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Helena Alexanderson |
author_facet |
Helena Alexanderson |
author_sort |
Helena Alexanderson |
title |
2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 |
title_short |
2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 |
title_full |
2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 |
title_fullStr |
2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 |
title_full_unstemmed |
2007: Residual OSL signals from modern Greenlandic river sediments. Geochronometria 26 |
title_sort |
2007: residual osl signals from modern greenlandic river sediments. geochronometria 26 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.570.5568 http://www.geochronometria.pl/pdf/geo_26/Geo26_01.pdf |
long_lat |
ENVELOPE(-23.500,-23.500,71.167,71.167) |
geographic |
Greenland Jameson Land |
geographic_facet |
Greenland Jameson Land |
genre |
East Greenland Greenland greenlandic |
genre_facet |
East Greenland Greenland greenlandic |
op_source |
http://www.geochronometria.pl/pdf/geo_26/Geo26_01.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.570.5568 http://www.geochronometria.pl/pdf/geo_26/Geo26_01.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766399431711653888 |