East Antarctica magnetically linked to its ancient neighbours in Gondwana

Abstract We present a new magnetic compilation for Central Gondwana conformed to a recent satellite magnetic model (LCS-1) with the help of an equivalent layer approach, resulting in consistent levels, corrections that have not previously been applied. Additionally, we use the satellite data to its...

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Autores principales:	Jörg Ebbing, Yixiati Dilixiati, Peter Haas, Fausto Ferraccioli, Stephanie Scheiber-Enslin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d32a545dc88248f2b11a41bb5e94304d
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spelling	oai:doaj.org-article:d32a545dc88248f2b11a41bb5e94304d2021-12-02T13:20:21ZEast Antarctica magnetically linked to its ancient neighbours in Gondwana10.1038/s41598-021-84834-12045-2322https://doaj.org/article/d32a545dc88248f2b11a41bb5e94304d2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84834-1https://doaj.org/toc/2045-2322Abstract We present a new magnetic compilation for Central Gondwana conformed to a recent satellite magnetic model (LCS-1) with the help of an equivalent layer approach, resulting in consistent levels, corrections that have not previously been applied. Additionally, we use the satellite data to its full spectral content, which helps to include India, where high resolution aeromagnetic data are not publically available. As India is located north of the magnetic equator, we also performed a variable reduction to the pole to the satellite data by applying an equivalent source method. The conformed aeromagnetic and satellite data are superimposed on a recent deformable Gondwana plate reconstruction that links the Kaapvaal Craton in Southern Africa with the Grunehogna Craton in East Antarctica in a tight fit. Aeromagnetic anomalies unveil, however, wider orogenic belts that preserve remnants of accreted Meso- to Neoproterozoic crust in interior East Antarctica, compared to adjacent sectors of Southern Africa and India. Satellite and aeromagnetic anomaly datasets help to portray the extent and architecture of older Precambrian cratons, re-enforcing their linkages in East Antarctica, Australia, India and Africa.Jörg EbbingYixiati DilixiatiPeter HaasFausto FerraccioliStephanie Scheiber-EnslinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jörg Ebbing Yixiati Dilixiati Peter Haas Fausto Ferraccioli Stephanie Scheiber-Enslin East Antarctica magnetically linked to its ancient neighbours in Gondwana
description	Abstract We present a new magnetic compilation for Central Gondwana conformed to a recent satellite magnetic model (LCS-1) with the help of an equivalent layer approach, resulting in consistent levels, corrections that have not previously been applied. Additionally, we use the satellite data to its full spectral content, which helps to include India, where high resolution aeromagnetic data are not publically available. As India is located north of the magnetic equator, we also performed a variable reduction to the pole to the satellite data by applying an equivalent source method. The conformed aeromagnetic and satellite data are superimposed on a recent deformable Gondwana plate reconstruction that links the Kaapvaal Craton in Southern Africa with the Grunehogna Craton in East Antarctica in a tight fit. Aeromagnetic anomalies unveil, however, wider orogenic belts that preserve remnants of accreted Meso- to Neoproterozoic crust in interior East Antarctica, compared to adjacent sectors of Southern Africa and India. Satellite and aeromagnetic anomaly datasets help to portray the extent and architecture of older Precambrian cratons, re-enforcing their linkages in East Antarctica, Australia, India and Africa.
format	article
author	Jörg Ebbing Yixiati Dilixiati Peter Haas Fausto Ferraccioli Stephanie Scheiber-Enslin
author_facet	Jörg Ebbing Yixiati Dilixiati Peter Haas Fausto Ferraccioli Stephanie Scheiber-Enslin
author_sort	Jörg Ebbing
title	East Antarctica magnetically linked to its ancient neighbours in Gondwana
title_short	East Antarctica magnetically linked to its ancient neighbours in Gondwana
title_full	East Antarctica magnetically linked to its ancient neighbours in Gondwana
title_fullStr	East Antarctica magnetically linked to its ancient neighbours in Gondwana
title_full_unstemmed	East Antarctica magnetically linked to its ancient neighbours in Gondwana
title_sort	east antarctica magnetically linked to its ancient neighbours in gondwana
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d32a545dc88248f2b11a41bb5e94304d
work_keys_str_mv	AT jorgebbing eastantarcticamagneticallylinkedtoitsancientneighboursingondwana AT yixiatidilixiati eastantarcticamagneticallylinkedtoitsancientneighboursingondwana AT peterhaas eastantarcticamagneticallylinkedtoitsancientneighboursingondwana AT faustoferraccioli eastantarcticamagneticallylinkedtoitsancientneighboursingondwana AT stephaniescheiberenslin eastantarcticamagneticallylinkedtoitsancientneighboursingondwana
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East Antarctica magnetically linked to its ancient neighbours in Gondwana

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