Uranium series dating of Allan Hills ice
Uranium-238 decay series nuclides dissolved in Antarctic ice samples were measured in areas of both high and low concentrations of volcanic glass shards. Ice from the Allan Hills site (high shard content) had high Ra-226, Th-230 and U-234 activities but similarly low U-238 activities in comparison w...
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1986
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ftnasantrs:oai:casi.ntrs.nasa.gov:19860049995 2023-05-15T13:49:36+02:00 Uranium series dating of Allan Hills ice Fireman, E. L. Unclassified, Unlimited, Publicly available Mar 30, 1986 http://ntrs.nasa.gov/search.jsp?R=19860049995 unknown http://ntrs.nasa.gov/search.jsp?R=19860049995 Accession ID: 86A34733 Copyright Other Sources 46 Journal of Geophysical Research; 91; D539-D54 1986 ftnasantrs 2012-02-15T16:47:15Z Uranium-238 decay series nuclides dissolved in Antarctic ice samples were measured in areas of both high and low concentrations of volcanic glass shards. Ice from the Allan Hills site (high shard content) had high Ra-226, Th-230 and U-234 activities but similarly low U-238 activities in comparison with Antarctic ice samples without shards. The Ra-226, Th-230 and U-234 excesses were found to be proportional to the shard content, while the U-238 decay series results were consistent with the assumption that alpha decay products recoiled into the ice from the shards. Through this method of uranium series dating, it was learned that the Allen Hills Cul de Sac ice is approximately 325,000 years old. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
46 |
spellingShingle |
46 Fireman, E. L. Uranium series dating of Allan Hills ice |
topic_facet |
46 |
description |
Uranium-238 decay series nuclides dissolved in Antarctic ice samples were measured in areas of both high and low concentrations of volcanic glass shards. Ice from the Allan Hills site (high shard content) had high Ra-226, Th-230 and U-234 activities but similarly low U-238 activities in comparison with Antarctic ice samples without shards. The Ra-226, Th-230 and U-234 excesses were found to be proportional to the shard content, while the U-238 decay series results were consistent with the assumption that alpha decay products recoiled into the ice from the shards. Through this method of uranium series dating, it was learned that the Allen Hills Cul de Sac ice is approximately 325,000 years old. |
format |
Other/Unknown Material |
author |
Fireman, E. L. |
author_facet |
Fireman, E. L. |
author_sort |
Fireman, E. L. |
title |
Uranium series dating of Allan Hills ice |
title_short |
Uranium series dating of Allan Hills ice |
title_full |
Uranium series dating of Allan Hills ice |
title_fullStr |
Uranium series dating of Allan Hills ice |
title_full_unstemmed |
Uranium series dating of Allan Hills ice |
title_sort |
uranium series dating of allan hills ice |
publishDate |
1986 |
url |
http://ntrs.nasa.gov/search.jsp?R=19860049995 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Antarctic Allan Hills |
geographic_facet |
Antarctic Allan Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19860049995 Accession ID: 86A34733 |
op_rights |
Copyright |
_version_ |
1766251848981807104 |