Paleomagnetism of the Northwestern Part of the Mahabharat Synclinorium, Lesser Himalaya, Nepal

Gautam, Pitambar

北海道大学理学部紀要, 1990, 22(4), 591-609

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アクセス権	open access
URI	https://hdl.handle.net/2115/36768
タイトル	Paleomagnetism of the Northwestern Part of the Mahabharat Synclinorium, Lesser Himalaya, Nepal
著者	e-Rad_Researcher 60374203 著者名 Gautam, Pitambar
言語	英語
発行日	1990-08
出版者	北海道大学
出版者	Hokkaido University
収録物名	北海道大学理学部紀要
収録物名	Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy
巻(号)	22(4)
ページ	591-609
抄録	Remanent magnetization of the low-grade metasediments (272 specimens/131 samples from 26 sites), which constitute the Nawakot and Kathmandu Complexes in the northwestern part of the Mahabharat synclinorium, is described. Alternating field (AF) and thermal (TH) demagnetization experiments reveal stable secondary magnetization resting in hematite and represented by normal and reverse polarities. The secondary remanence is of prefolding origin in the rocks from the Nawakot Complex while it post-dates major folding in those from the Kathmandu Complex. The directions are consistent with near-equatorial shallow paleolatitudes. The secondary remanence is interpreted to indicate the occurrence of a series of events, i.e. reheating and/or metamorphism, nappe emplacement and folding in this area at the onset or shortly after the early Eocene India-Eurasia collision.
資源タイプ	紀要論文
出版タイプ	Version of Record
PISSN	0018-3474