气候变化领域集成服务门户(CCPortal): Magnetic Anisotropy of Rocks: A New Classification of Inverse Magnetic Fabrics to Help Geological Interpretations

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DOI	10.1029/2020JB020426
	Magnetic Anisotropy of Rocks: A New Classification of Inverse Magnetic Fabrics to Help Geological Interpretations
	Černý J.; Melichar R.; Všianský D.; Drahokoupil J.
发表日期	2020
ISSN	21699313
卷号	125 期号:11
英文摘要	Inverse magnetic fabrics defined by anisotropy of magnetic susceptibility with the longest principal axis perpendicular to bedding were identified in the studied samples of Ordovician sedimentary rocks from the Barrandian area, Czech Republic. These fabrics are related to ankerite fibers in association with cone-in-cone structures. To understand the meaning of such inverse magnetic fabrics for geological interpretations, a new, more detailed classification of inverse magnetic fabrics' types is formulated in this paper. Distinguishing the structural (i.e., shape) and magnetocrystalline anisotropies in rocks, three new (sub)types of magnetic fabrics were defined in this study based on the combination of structural normal/inverse and magnetocrystalline normal/inverse anisotropies. As a result, normal magnetic fabric is extended by new fabric types associated with inverse anisotropy: simple inverse, pure inverse, and pseudo-normal magnetic fabrics. The studied fibrous ankerite shows simple inverse magnetic fabric, which results from the combination of normal magnetocrystalline and inverse structural anisotropies. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	AMS fabrics; anisotropy of magnetic susceptibility; ankerite; cone-in-cone; inverse magnetic fabric; rock magnetism
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187518
作者单位	Institute of Geology, Czech Academy of Sciences, Prague, Czech Republic; Department of Geological Sciences, Faculty of Science, Masaryk University, Brno, Czech Republic; Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
推荐引用方式 GB/T 7714	Černý J.,Melichar R.,Všianský D.,et al. Magnetic Anisotropy of Rocks: A New Classification of Inverse Magnetic Fabrics to Help Geological Interpretations[J],2020,125(11).
APA	Černý J.,Melichar R.,Všianský D.,&Drahokoupil J..(2020).Magnetic Anisotropy of Rocks: A New Classification of Inverse Magnetic Fabrics to Help Geological Interpretations.Journal of Geophysical Research: Solid Earth,125(11).
MLA	Černý J.,et al."Magnetic Anisotropy of Rocks: A New Classification of Inverse Magnetic Fabrics to Help Geological Interpretations".Journal of Geophysical Research: Solid Earth 125.11(2020).