铀矿地质2018，Vol.34Issue(1)：25-31,52,8.DOI:10.3969/j.issn.1000-0658.2018.01.005
旋卷状构造组合演变进程
The Evolution Process of Vortex-shaped Structural Assemblages
摘要
Abstract
This paper put forward the concept and the types of vortex-shaped structural assemblage (or vortex-shaped structure).The studies on the evolving process of small vortex-shaped structures indicated that the genesis of vortex-shaped structures is closely related to the commonest way of deformation under parallel shearing from the interlayer strike to slipping and folding of stratified rocks.Every type of vortex-shaped structures,as one of the series products in the evolving process,is the assemblage of different geometric elements which were gradually formed and developed at different evolving stages.The most developed type which is a type with all geometric elements and a perfect form which is the turbineshaped structures.In addition,well developed types are usually characterized by a C-bay (a bay-shaped structure of a fold core destroyed by faults),a half-dividing plane (a compounding strike-slipping fault plane dividing the vortex-shaped structural assemblage into halves),a fault empty area (a crescent tensile space or its deformed shape resulted from a branch shearing fault) and a fault triangle area (a triangle tensile area bounded by three shearing faults),which show the types originated from parallel shearing.The evolving process (mode),identification marks and the shear sense of the turbine-shaped structures was mainly discussed in this paper.关键词
旋卷状构造/平行剪切/剪切指向/演变进程/旋卷构造Key words
vortex-shaped structure/parallel shear/shear sense/evolving process/vortex structure分类
天文与地球科学引用本文复制引用
方茂龙,张玉双,李瀚波..旋卷状构造组合演变进程[J].铀矿地质,2018,34(1):25-31,52,8.基金项目
中国核工业地质局铀矿地质科研项目“内蒙古宝昌-多伦地区铀成矿重点地段遥感构造解译与研究”(编号:2016-76)资助. （编号:2016-76）
