Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method
Summary 3D vertical structure of the Antarctic Plate's boundary along longitudinal cross-sections and lateral slices at different depths is displayed through a distribution of density anomalies relative to Preliminary Reference Earth Model (PREM) using the harmonic coefficients of the EGM96 geo...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.113.8780 2023-05-15T14:04:19+02:00 Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method R. Kh. Greku T. R. Greku The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.113.8780 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea088.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.113.8780 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea088.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/of2007-1047ea088.pdf text ftciteseerx 2016-01-07T13:48:26Z Summary 3D vertical structure of the Antarctic Plate's boundary along longitudinal cross-sections and lateral slices at different depths is displayed through a distribution of density anomalies relative to Preliminary Reference Earth Model (PREM) using the harmonic coefficients of the EGM96 geoid model. Features of interaction between the Antarctic Plate and other plates are shown with our gravimetric tomography data over more than 40,000 km along the palte boundary. Two bodies (plumes) dominate in the mantle. Less dense masses ascend from depth of 2800 km and then split up at the depth of 200 km as three branches to the Australian-Antarctic Discordance (AAD), the Ross Sea and the Nazca plate. Dense masses descend from a surface as subducted slabs and collect at depths of 60 km and 280 km. It was discovered in the AAD area and the Nazca Ridge that thinning hot masses penetrate into the colder crust and lithosphere. Citation: Greku and T.R. Greku (2007) Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method- Online Text Antarc* Antarctic Ross Sea Unknown Antarctic Australian-Antarctic Discordance ENVELOPE(124.000,124.000,-49.000,-49.000) Ross Sea The Antarctic |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
description |
Summary 3D vertical structure of the Antarctic Plate's boundary along longitudinal cross-sections and lateral slices at different depths is displayed through a distribution of density anomalies relative to Preliminary Reference Earth Model (PREM) using the harmonic coefficients of the EGM96 geoid model. Features of interaction between the Antarctic Plate and other plates are shown with our gravimetric tomography data over more than 40,000 km along the palte boundary. Two bodies (plumes) dominate in the mantle. Less dense masses ascend from depth of 2800 km and then split up at the depth of 200 km as three branches to the Australian-Antarctic Discordance (AAD), the Ross Sea and the Nazca plate. Dense masses descend from a surface as subducted slabs and collect at depths of 60 km and 280 km. It was discovered in the AAD area and the Nazca Ridge that thinning hot masses penetrate into the colder crust and lithosphere. Citation: Greku and T.R. Greku (2007) Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method- Online |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
R. Kh. Greku T. R. Greku |
spellingShingle |
R. Kh. Greku T. R. Greku Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method |
author_facet |
R. Kh. Greku T. R. Greku |
author_sort |
R. Kh. Greku |
title |
Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method |
title_short |
Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method |
title_full |
Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method |
title_fullStr |
Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method |
title_full_unstemmed |
Deep structure of the Antarctic Plate’s boundary zone by the gravimetric tomography method |
title_sort |
deep structure of the antarctic plate’s boundary zone by the gravimetric tomography method |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.113.8780 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea088.pdf |
long_lat |
ENVELOPE(124.000,124.000,-49.000,-49.000) |
geographic |
Antarctic Australian-Antarctic Discordance Ross Sea The Antarctic |
geographic_facet |
Antarctic Australian-Antarctic Discordance Ross Sea The Antarctic |
genre |
Antarc* Antarctic Ross Sea |
genre_facet |
Antarc* Antarctic Ross Sea |
op_source |
http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea088.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.113.8780 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea088.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766275364325163008 |