Summary Englacial tephra are chronostratigraphic markers of the Antarctic ice sheet. Structural, mineralogical, geochemical and geochronological data on selected samples allowed the reconstruction of a chronostratigraphic framework for the Frontier Mountain blue ice field – an important meteorite tr...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.512.3611 2023-05-15T14:01:47+02:00 The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.3611 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea128.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.3611 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea128.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea128.pdf text ftciteseerx 2016-01-08T09:42:22Z Summary Englacial tephra are chronostratigraphic markers of the Antarctic ice sheet. Structural, mineralogical, geochemical and geochronological data on selected samples allowed the reconstruction of a chronostratigraphic framework for the Frontier Mountain blue ice field – an important meteorite trap on the southeastern flank of Talos Dome in Victoria Land. The stratigraphic thickness of the ice succession is ~1150 m. The 40Ar-39Ar age of one layer close to the stratigraphic bottom is 100±5 ka and constrains the maximum age of the bulk of Frontier Mountain blue ice. This work lays the foundations for a detailed investigation of ~100 ka of explosive volcanism in Victoria Land. Furthermore, in light of the ongoing ice core drilling project at Talos Dome, the Frontier Mountain ice succession may become important for establishing regional correlations, for sampling and dating key tephra layers, and for selecting ice successions for high-resolution studies of past atmospheric chemistry and fall out. Text Antarc* Antarctic ice core Ice Sheet Victoria Land Unknown Antarctic Dome The ENVELOPE(166.000,166.000,-85.367,-85.367) Frontier Mountain ENVELOPE(160.333,160.333,-72.983,-72.983) Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) The Antarctic Victoria Land |
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Open Polar |
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ftciteseerx |
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English |
description |
Summary Englacial tephra are chronostratigraphic markers of the Antarctic ice sheet. Structural, mineralogical, geochemical and geochronological data on selected samples allowed the reconstruction of a chronostratigraphic framework for the Frontier Mountain blue ice field – an important meteorite trap on the southeastern flank of Talos Dome in Victoria Land. The stratigraphic thickness of the ice succession is ~1150 m. The 40Ar-39Ar age of one layer close to the stratigraphic bottom is 100±5 ka and constrains the maximum age of the bulk of Frontier Mountain blue ice. This work lays the foundations for a detailed investigation of ~100 ka of explosive volcanism in Victoria Land. Furthermore, in light of the ongoing ice core drilling project at Talos Dome, the Frontier Mountain ice succession may become important for establishing regional correlations, for sampling and dating key tephra layers, and for selecting ice successions for high-resolution studies of past atmospheric chemistry and fall out. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.3611 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea128.pdf |
long_lat |
ENVELOPE(166.000,166.000,-85.367,-85.367) ENVELOPE(160.333,160.333,-72.983,-72.983) ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic Dome The Frontier Mountain Talos Dome The Antarctic Victoria Land |
geographic_facet |
Antarctic Dome The Frontier Mountain Talos Dome The Antarctic Victoria Land |
genre |
Antarc* Antarctic ice core Ice Sheet Victoria Land |
genre_facet |
Antarc* Antarctic ice core Ice Sheet Victoria Land |
op_source |
http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea128.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.3611 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea128.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766271834603388928 |