Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa

Currently no reliable paleomagnetic pole for the Kalahari craton exists for the time period ~900-750 Ma, and it is the purpose of this thesis to acquire the first such pole. Here I report the results of paleomagnetic analyses from 47 sites from Neoproterozoic rocks within the Richtersveld Igneous Co...

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Main Author:	Bartholomew, Leigh Taylor
Other Authors:	Richard E Hanson
Format:	Others
Language:	en
Published:	Texas Christian University 2008
Subjects:	College of Science and Engineering
Online Access:	http://etd.tcu.edu/etdfiles/available/etd-12182008-145847/

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spelling	ndltd-TCU-oai-etd.tcu.edu-etd-12182008-1458472013-01-08T02:48:37Z Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa Bartholomew, Leigh Taylor College of Science and Engineering Currently no reliable paleomagnetic pole for the Kalahari craton exists for the time period ~900-750 Ma, and it is the purpose of this thesis to acquire the first such pole. Here I report the results of paleomagnetic analyses from 47 sites from Neoproterozoic rocks within the Richtersveld Igneous Complex (~890 Ma), the older Bremen Complex (~890 Ma), and the Gannakouriep dike swarm (~795-790 Ma) within southern Namibia and adjacent parts of South Africa. The resulting grand mean pole obtained for the Kalahari craton lies at 73.9°N, 233.9°E (A95 = 4.5°). Comparison with published paleomagnetic poles from rock units of similar age from the Congo craton to the north supports a model in which the two cratons were originally separated by a wide ocean basin prior to the formation of the Gondwana supercontinent. However, additional work from the Congo craton is needed to test this hypothesis. Richard E Hanson Texas Christian University 2008-12-18 text application/pdf http://etd.tcu.edu/etdfiles/available/etd-12182008-145847/ http://etd.tcu.edu/etdfiles/available/etd-12182008-145847/ en unrestricted I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to TCU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.
collection	NDLTD
language	en
format	Others
sources	NDLTD
topic	College of Science and Engineering
spellingShingle	College of Science and Engineering Bartholomew, Leigh Taylor Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa
description	Currently no reliable paleomagnetic pole for the Kalahari craton exists for the time period ~900-750 Ma, and it is the purpose of this thesis to acquire the first such pole. Here I report the results of paleomagnetic analyses from 47 sites from Neoproterozoic rocks within the Richtersveld Igneous Complex (~890 Ma), the older Bremen Complex (~890 Ma), and the Gannakouriep dike swarm (~795-790 Ma) within southern Namibia and adjacent parts of South Africa. The resulting grand mean pole obtained for the Kalahari craton lies at 73.9°N, 233.9°E (A95 = 4.5°). Comparison with published paleomagnetic poles from rock units of similar age from the Congo craton to the north supports a model in which the two cratons were originally separated by a wide ocean basin prior to the formation of the Gondwana supercontinent. However, additional work from the Congo craton is needed to test this hypothesis.
author2	Richard E Hanson
author_facet	Richard E Hanson Bartholomew, Leigh Taylor
author	Bartholomew, Leigh Taylor
author_sort	Bartholomew, Leigh Taylor
title	Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa
title_short	Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa
title_full	Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa
title_fullStr	Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa
title_full_unstemmed	Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa
title_sort	paleomagnetism of neoproterozoic intraplate igneous rocks in the southwest kalahari craton, namibia and south africa
publisher	Texas Christian University
publishDate	2008
url	http://etd.tcu.edu/etdfiles/available/etd-12182008-145847/
work_keys_str_mv	AT bartholomewleightaylor paleomagnetismofneoproterozoicintraplateigneousrocksinthesouthwestkalaharicratonnamibiaandsouthafrica
_version_	1716502615049633792

Paleomagnetism of Neoproterozoic Intraplate Igneous Rocks in the Southwest Kalahari Craton, Namibia and South Africa

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