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New Magnetic Fabric Data from Almora Crystalline Rocks around Rameshwar, Near North Almora Thrust
Journal of the Geological Society of India ( IF 1.2 ) Pub Date : 2020-10-01 , DOI: 10.1007/s12594-020-1563-4
Vibha Katiyar , S. K. Patil , Hari B. Srivastava

In this paper, Anisotropy of Magnetic Susceptibility (AMS) data from the rocks of Almora crystalline in the vicinity of Rameshwar is presented. The study integrates field, microstructural and Anisotropy of Magnetic Susceptibility (AMS) studies. Field foliation strike shows NW-SE orientation with moderate to high dip in rocks of Almora Crystalline, whereas near North Almora Thrust rocks of Almora Crystalline are steeply dipping and litho-units are intensely mylonitized due to NE-SW regional compression. The magnetic foliations are recorded to be parallel to the field foliation of the study area. Variation in orientation of magnetic lineation is inferred to imply superposed deformation in the study area. AMS study also reveals that the shape of susceptibility ellipsoid is oblate which is inferred to be due to compression.

中文翻译:

来自北阿尔莫拉逆冲断层附近拉梅什瓦周围阿尔莫拉结晶岩的新磁性织物数据

本文介绍了拉梅什瓦附近 Almora 结晶岩石的磁化率各向异性 (AMS) 数据。该研究整合了磁场、微观结构和磁化率各向异性 (AMS) 研究。野外叶理走向显示出 NW-SE 取向,在 Almora Crystalline 的岩石中具有中度至高倾角,而在 Almora Crystalline 的北 Almora 冲断岩附近,由于 NE-SW 区域压缩,岩石单元呈陡倾倾角,并且岩石单元强烈糜棱化。磁性叶理被记录为平行于研究区域的场叶理。推断磁力线方向的变化意味着研究区的叠加变形。AMS 研究还表明,磁化率椭球的形状是扁圆的,推测是由于压缩造成的。
更新日期:2020-10-01
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