Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data
Abstract We produced a crustal magnetization model for the Maud Rise in the southwest Indian Ocean off the coast of East Antarctica using magnetic observations from the Ørsted satellite and near-surface surveys complied by the Antarctic Digital Magnetic Anomaly Project (ADMAP). Joint inversion of th...
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crspringernat:10.1186/bf03351851 2023-05-15T14:07:23+02:00 Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data Kim, Hyung Rae von Frese, Ralph R. B. Golynsky, Alexander V. Taylor, Patrick T. Kim, Jeong Woo 2005 http://dx.doi.org/10.1186/bf03351851 https://link.springer.com/content/pdf/10.1186/BF03351851.pdf https://link.springer.com/article/10.1186/BF03351851/fulltext.html http://link.springer.com/content/pdf/10.1186/BF03351851 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ CC-BY Earth, Planets and Space volume 57, issue 8, page 717-726 ISSN 1880-5981 Space and Planetary Science Geology journal-article 2005 crspringernat https://doi.org/10.1186/bf03351851 2022-01-04T07:07:40Z Abstract We produced a crustal magnetization model for the Maud Rise in the southwest Indian Ocean off the coast of East Antarctica using magnetic observations from the Ørsted satellite and near-surface surveys complied by the Antarctic Digital Magnetic Anomaly Project (ADMAP). Joint inversion of the two anomaly fields suggests that the magnetic effects due to crustal thickness variations and remanence involving the normal polarity Cretaceous Quiet Zone (KQZ) dominate at satellite altitude (~700 km). The crustal thickness effects were modeled in the Ørsted data using crustal thickness variations derived from satellite altitude gravity data. Modeling of the residual Ørsted and near-surface magnetic anomalies supports extending the KQZ eastwards to the Astrid Ridge. The remaining near-surface anomalies involve crustal features with relatively high frequency effects that are strongly attenuated at satellite altitudes. The crustal modeling can be extended by the satellite magnetic anomalies across the Indian Ocean Ridge for insight on the crustal properties of the conjugate Agulhas Plateau. The modeling supports the Jurassic reconstruction of Gondwana when the African Limpopo-Zambezi and East Antarctic Princess Astrid coasts were connected as part of a relatively demagnetized crustal block. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Springer Nature (via Crossref) Antarctic The Antarctic East Antarctica Indian Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) Astrid Ridge ENVELOPE(12.000,12.000,-68.000,-68.000) Earth, Planets and Space 57 8 717 726 |
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Springer Nature (via Crossref) |
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English |
topic |
Space and Planetary Science Geology |
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Space and Planetary Science Geology Kim, Hyung Rae von Frese, Ralph R. B. Golynsky, Alexander V. Taylor, Patrick T. Kim, Jeong Woo Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
topic_facet |
Space and Planetary Science Geology |
description |
Abstract We produced a crustal magnetization model for the Maud Rise in the southwest Indian Ocean off the coast of East Antarctica using magnetic observations from the Ørsted satellite and near-surface surveys complied by the Antarctic Digital Magnetic Anomaly Project (ADMAP). Joint inversion of the two anomaly fields suggests that the magnetic effects due to crustal thickness variations and remanence involving the normal polarity Cretaceous Quiet Zone (KQZ) dominate at satellite altitude (~700 km). The crustal thickness effects were modeled in the Ørsted data using crustal thickness variations derived from satellite altitude gravity data. Modeling of the residual Ørsted and near-surface magnetic anomalies supports extending the KQZ eastwards to the Astrid Ridge. The remaining near-surface anomalies involve crustal features with relatively high frequency effects that are strongly attenuated at satellite altitudes. The crustal modeling can be extended by the satellite magnetic anomalies across the Indian Ocean Ridge for insight on the crustal properties of the conjugate Agulhas Plateau. The modeling supports the Jurassic reconstruction of Gondwana when the African Limpopo-Zambezi and East Antarctic Princess Astrid coasts were connected as part of a relatively demagnetized crustal block. |
format |
Article in Journal/Newspaper |
author |
Kim, Hyung Rae von Frese, Ralph R. B. Golynsky, Alexander V. Taylor, Patrick T. Kim, Jeong Woo |
author_facet |
Kim, Hyung Rae von Frese, Ralph R. B. Golynsky, Alexander V. Taylor, Patrick T. Kim, Jeong Woo |
author_sort |
Kim, Hyung Rae |
title |
Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
title_short |
Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
title_full |
Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
title_fullStr |
Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
title_full_unstemmed |
Crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
title_sort |
crustal analysis of maud rise from combined satellite and near-surface magnetic survey data |
publisher |
Springer Science and Business Media LLC |
publishDate |
2005 |
url |
http://dx.doi.org/10.1186/bf03351851 https://link.springer.com/content/pdf/10.1186/BF03351851.pdf https://link.springer.com/article/10.1186/BF03351851/fulltext.html http://link.springer.com/content/pdf/10.1186/BF03351851 |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) ENVELOPE(12.000,12.000,-68.000,-68.000) |
geographic |
Antarctic The Antarctic East Antarctica Indian Maud Rise Astrid Ridge |
geographic_facet |
Antarctic The Antarctic East Antarctica Indian Maud Rise Astrid Ridge |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_source |
Earth, Planets and Space volume 57, issue 8, page 717-726 ISSN 1880-5981 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1186/bf03351851 |
container_title |
Earth, Planets and Space |
container_volume |
57 |
container_issue |
8 |
container_start_page |
717 |
op_container_end_page |
726 |
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1766279285283225600 |