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- W2071549314 abstract "Research Article| June 01, 1996 Synchronous emplacement of Ferrar and Karoo dolerites and the early breakup of Gondwana John Encarnación; John Encarnación 1Byrd Polar Research Center, Ohio State University, Columbus, Ohio 43210 Search for other works by this author on: GSW Google Scholar Thomas H. Fleming; Thomas H. Fleming 2Byrd Polar Research Center and Department of Geological Sciences, Ohio State University, Columbus, Ohio 43210 Search for other works by this author on: GSW Google Scholar David H. Elliot; David H. Elliot 2Byrd Polar Research Center and Department of Geological Sciences, Ohio State University, Columbus, Ohio 43210 Search for other works by this author on: GSW Google Scholar Hugh V. Eales Hugh V. Eales 3Department of Geology, Rhodes University, 6140 Grahamstown, South Africa Search for other works by this author on: GSW Google Scholar Author and Article Information John Encarnación 1Byrd Polar Research Center, Ohio State University, Columbus, Ohio 43210 Thomas H. Fleming 2Byrd Polar Research Center and Department of Geological Sciences, Ohio State University, Columbus, Ohio 43210 David H. Elliot 2Byrd Polar Research Center and Department of Geological Sciences, Ohio State University, Columbus, Ohio 43210 Hugh V. Eales 3Department of Geology, Rhodes University, 6140 Grahamstown, South Africa Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (6): 535–538. https://doi.org/10.1130/0091-7613(1996)024<0535:SEOFAK>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation John Encarnación, Thomas H. Fleming, David H. Elliot, Hugh V. Eales; Synchronous emplacement of Ferrar and Karoo dolerites and the early breakup of Gondwana. Geology 1996;; 24 (6): 535–538. doi: https://doi.org/10.1130/0091-7613(1996)024<0535:SEOFAK>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Constraints on the timing of Karoo and Ferrar continental flood-basalt magmatism in Africa and Antarctica, respectively, are critical to understanding the relationship of the Karoo and Ferrar to mantle plumes, subduction, and the initial breakup of Gondwana. Although recent work has shown that Ferrar magmas were emplaced over a short interval (<1 m.y.), the timing of magmatism within the Karoo and its relationship to the Ferrar have been problematic. New zircon and baddeleyite U-Pb ages on Ferrar (183.6 ± 1.0 Ma) and southern Karoo (183.7 ± 0.6 Ma) dolerites demonstrate that part of Karoo magmatism occurred during the rapid emplacement of Ferrar magmas. A mantle plume is thought to have been important in the genesis of the Karoo province, whereas lithospheric extension, perhaps related to subduction, has been invoked for Ferrar magmatism. The new ages now suggest that Ferrar and southern Karoo magmatism were related to a single mantle thermal anomaly and rifting event. This event may have produced local rift basins and caused rotation of microblocks in west Antarctica several million years before the breakup of east and west Gondwana. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2071549314 title "Synchronous emplacement of Ferrar and Karoo dolerites and the early breakup of Gondwana" @default.
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