Palaeomagnetism of Khairmalia Volcanics, south of Chittorgarh -implications related to the basal age of the Proterozoic Vindhyan Supergroup

Y. H. Rao; M. Venkateshwarlu; G. Papanna; B. Ramalingeshwara Rao

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Palaeomagnetism of Khairmalia Volcanics, south of Chittorgarh -implications related to the basal age of the Proterozoic Vindhyan Supergroup

机译：Chittorgarh以南的Khairmalia火山的古磁性-与元古生Vindhyan超群的基本年龄有关的含意

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Palaeomagnetic studies were carried out on the basal Khairmalia volcanic rocks of the Proterozoic Vindhyan Supergroup. Two hundred and ten specimens prepared from 30 oriented block samples from 10 sites near Khairmalia, south of Chittorgarh, Rajasthanwere studied. They are characterized by mean characteristic remanent magnetization D = 8° and / = 9° (alpha_(95) = 16.3; k = 23.11). Virtual geomagnetic pole is estimated at 68.6°N; 231.3°E (dp = 8.3 and dm = 16.4). Plot on the Proterozoic apparentpolar wander path~1 indicates that the volcanics may have erupted ca. 1800 Ma.

机译：对古生代Vindhyan超群的Khairmalia基底火山岩进行了古地磁研究。研究人员从拉贾斯坦邦奇托加尔以南Khairmalia附近的10个地点的30个定向块状样品中制备了211个标本。它们的特征在于平均特征剩磁D = 8°和/ = 9°（alpha_（95）= 16.3; k = 23.11）。虚拟地磁极估计为68.6°N; 231.3°E（dp = 8.3和dm = 16.4）。在元古代表观极地游动路径〜1上的图线表明火山可能已经爆发了。 1800马

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《Current Science: A Fortnightly Journal of Research》 |2013年第3期|共4页
作者
Y. H. Rao; M. Venkateshwarlu; G. Papanna; B. Ramalingeshwara Rao;
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正文语种 eng
中图分类自然科学现状及发展;
关键词
Chittorgarh; Khairmalia andesites; palaeomagnetism; Vindhyan Supergroup;

机译：Chittorgarh;Khairmalia安山岩;古磁性;Vindhyan超群;

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1. Palaeomagnetism of Khairmalia Volcanics, south of Chittorgarh -implications related to the basal age of the Proterozoic Vindhyan Supergroup [J] . Y. H. Rao, M. Venkateshwarlu, G. Papanna, Current Science: A Fortnightly Journal of Research . 2013,第3期

机译：Chittorgarh以南的Khairmalia火山的古磁性-与元古生Vindhyan超群的基本年龄有关的含意
2. Slides, soft-sediment deformations, and mass flows from Proterozoic Lakheri Limestone Formation, Vindhyan Supergroup, central India, and their implications towards basin tectonics [J] . Chakraborty PP Facies . 2011,第2期

机译：印度中部Vindhyan超群的元古代Lakheri石灰岩组的滑坡，软沉积变形和质量流及其对盆地构造的影响
3. Microfossils from the black chert of Bhagwanpura Limestone(Middle Proterozonic), Vindhyan Supergroup, Chittorgarh area, Rajasthan, West India [J] . Kumar S., Srivastava Purnima Current science . 1992,第04期

机译：印度西印度拉贾斯坦邦奇托加尔地区Vindhyan超群Bhagwanpura石灰岩（中元古代）黑色石中的微化石
4. Detrital Zircon U-Pb Ages of the Proterozoic Metaclastic-Sedimentary Rocks in Hainan Province of South China: New Constraints on Depositional Times, Provenances, and Tectonic Implications [C] . HU Guocheng, WANG Zhilin, XU Deru, Quadrennial International Association on the Genesis of Ore Deposits Symposium;Geological Society of China . 2014

机译：中国海南省元古生界碎屑沉积岩的碎屑锆石U-Pb年龄：沉积时代，物源和构造意义的新约束
5. Isotopic and geochemical studies of Proterozoic to Recent Earth processes: Results from Indian lamproites, massif anorthosites and Vindhyan sediments, western Anatolian volcanics, Nyiragongo volcano in the African rift, Lonar impact crater in the Deccan and the Utica Shale magnafacies of North America. [D] . Chakrabarti, Ramananda. 2007

机译：从元古代到近代地球过程的同位素和地球化学研究：印度火山岩，地块反铁质沉积物和Vindhyan沉积物，安那托利亚西部火山，非洲裂谷的Nyiragongo火山，Deccan的Lonar撞击火山口和北美的Utica页岩大型火山岩的结果。
6. Influences of Sedimentary Environments and Volcanic Sources on Diagenetic Alteration of Volcanic Tuffs in South China [O] . Nina Gong, Hanlie Hong, Warren D. Huff, -1

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7. Geology of Vindhyan Supergroup in Parts of Chittorgarh and Bhilwara Districts (Rajasthan) with Particular Reference to Structural Evolution of the Great Boundary Fault [O] . Farooqui Md. Salman 1987

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8. Revisions of Stratigraphic Nomenclature within the Keweenawan Supergroup of Northern Michigan (Chapter A). Geochemistry, Petrography, and Volcanology of Rhyolites of the Portage Lake Volcanics, Keweenaw Peninsula, Michigan (Chapter B) [R] . Cannon, W. F., Nicholson, S. W. 1993

机译：密歇根北部Keweenawan超群内地层命名法的修订（a章）。密歇根州Keweenaw半岛波蒂奇湖火山岩流纹岩的地球化学，岩相学和火山学（B章）

Palaeomagnetism of Khairmalia Volcanics, south of Chittorgarh -implications related to the basal age of the Proterozoic Vindhyan Supergroup

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