Publication Date:
2004-04-24
Description:
We show that intraplate magmatism occurred 1106 to 1112 million years ago over an area of two million square kilometers within the Kalahari craton of southern Africa, during the same magnetic polarity chron as voluminous magmatism within the cratonic core of North America. These contemporaneous magmatic events occurred while the Rodinia supercontinent was being assembled and are inferred to be parts of a single large igneous province emplaced across the two cratons. Widespread intraplate magmatism during Rodinia assembly shows that mantle upwellings required to generate such provinces may occur independently of the supercontinent cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanson, Richard E -- Crowley, James L -- Bowring, Samuel A -- Ramezani, Jahandar -- Gose, Wulf A -- Dalziel, Ian W D -- Pancake, James A -- Seidel, Emily K -- Blenkinsop, Thomas G -- Mukwakwami, Joshua -- New York, N.Y. -- Science. 2004 May 21;304(5674):1126-9. Epub 2004 Apr 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology, Texas Christian University, Fort Worth, TX 76129, USA. r.hanson@tcu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15105458" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
,
Medicine
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Natural Sciences in General
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Physics
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