2) thrust nappe structure
逆冲推覆构造
1.
Geological characteristics and hydrocarbon potential of thrust nappe structure;
逆冲推覆构造的主要特征及勘探前景
2.
Laser microprobe~(40)Ar/~(39)Ar dating of argillite in the Daqingshang thrust nappe structure in Inner Mongolia;
内蒙古大青山逆冲推覆构造带中泥质板岩激光微区~(40)Ar/~(39)Ar年龄
3.
Gubeikou thrust nappe structure and brittle-ductile deformation belt of the Tuchengze Formation;
古北口逆冲推覆构造及土城子组脆韧性变形带特征
3) thrust-nappe tectonics
逆冲推覆构造
1.
The influence on oil and gas,combination types,tectonic origin mechanism,orogenic zone thrust-nappe tectonics and benching thrust-nappe tectonics are summaried in this paper.
本文概述了逆冲推覆构造对油气的影响,组合类型,构造成因机制,造山带逆冲推覆构造和台阶式逆冲推覆构造。
2.
There are two kinds of large-scale fault structures in the southwestern Guangxi, one is the onward outspreaded imbricate Pingxiang thrust-nappe tectonics,with strike between 25°~40°, dip to SE, dip angle between 20°~30°, thrust direction towards 310±.
桂西南发育两类大型断裂构造 :( 1 )逆冲推覆构造为前展式、叠瓦状构造 ,走向2 5°~ 4 0°,倾向SE ,倾角 2 0°~ 30°,逆冲方向 31 0°± ,分带明显 ;e =-33 3% ,εγ=66 7% ,s>560 0m ,为印支—燕山早期冲断 -推覆成因。
4) thrust-nappe structure
逆冲推覆构造
1.
Movement distance analysis of Wenquanjie thrust-nappe structure in Ruzhou coalfield;
汝州煤田温泉街逆冲推覆构造运动距离分析
5) nappe structure
逆冲推覆构造
1.
The 1∶250 000 regional geological survey divides the nappe structures in the Garzê quadrangle into Gangga nappe structure and Chola Shan gliding-nappe structure.
1∶2 5万甘孜县幅区调将测区推覆构造划分为岗嘎逆冲推覆构造和雀儿山滑覆构造。
6) thrust nappe
逆冲推覆构造
1.
The huge Dabashan thrust nappe structure on the southern margin of the Qinling orogenic belt mainly formed by long-continued combined action of Late Triassic plate subduction and collisional orogeny of the Qinling orogenic belt and intracontinental orogeny since the Meso-Cenozoic.
秦岭造山带南缘的大巴山巨型逆冲推覆构造主要是在秦岭造山带板块俯冲碰撞造山与中、新生代以来陆内造山过程中长期复合作用形成的。
2.
Shihelagou thrust nappe thrusting from north to south is recently discovered in the northern margin uplift belt of Ordos block during lately 1:250 000 regional geological survey in Baotou region.
野外地质关系表明逆冲推覆变形作用发生在晚侏罗世,与河套新生代断陷盆地北缘大青山逆冲推覆构造晚期逆冲推覆变形作用是同时的,逆冲推覆方向相反,构成了以现代河套盆地为中心的晚侏罗世背冲型逆冲推覆构造。
补充资料:推覆构造
推覆构造 nappe tectonics 由冲断层及其上盘推覆体和下盘组合而成的整体构造。冲断层总体倾斜平缓,常呈上陡下缓的铲状或下陡上缓的倒铲状,也可呈陡、缓相间的台阶状。上盘为由远距离(数千米至上百千米)推移而来的外来岩块,称推覆体。下盘为较少位移的原地岩块。推覆构造多发育于造山带及其前陆地区。 一个大的推覆体 ,沿其逆冲方向可分为根带、中带和前锋带。根带是推覆体的源区,岩石变形强烈,中带为推覆体的主体,由于经受了强烈的挤压和单剪作用,其中岩石常发育有剪切褶皱、劈理及次一级叠瓦状的冲断层。前锋带自由度大,常形成断裂和等厚褶皱。由于构成推覆构造的冲断层面起伏延展,如经后来的剥蚀作用,在前锋带和中带可形成被原地岩块包围的外来岩块孤丘,称飞来峰,以及在外来岩块中暴露出原地岩块天窗,称为构造窗。 |
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