庐山地区隆-滑构造特征及成因探讨  

CHARACTERISTICS OF THE UPLIFT_DECOLLEMENT STRUCTURE IN LUSHAN AREA: A GENETIC DISCUSSION

作　　者：杨淼生 

机构地区：[1]江西地质矿产勘查开发局地矿调研大队

出　　处：《江西地质》1998年第2期96-100,共5页Jiangxi Geology

摘　　要：庐山东南麓发育一套呈弧立穹窿状产出，由片麻岩、片岩、变粒岩组合构成的中深变质岩类，并伴有不同时代的花岗岩浆侵位。在该中深变质岩系的顶部发育以糜棱岩、构造片岩为主体的顺层韧性剪切变形变质带（简称顺层韧变带），其上为滑脱断层和固态流动构造群落带（简称顺层流褶带）以及独具特征的多层滑脱构造形迹群。反映了该区存在前印支造山期伸展构造作用下，形成的局部隆起—分层滑脱构造系（简称隆—滑构造）。　　A suite of mesometamorphic_hypometamorphic rock series of largely gneisses, schists and leptynites is developed on the southeastern foot of Mount Lushan, occurring as isolate dome intruded by multistage granite of various ages. A bedding-concordant ductile shear deformational_metamorphic zone dominated by mylonites and structural schists is developed at the top part of the metamorphic rock series. Above it,there are the detachment fault and structural solid flow belt (bedding_concordant flowage fold belt) with multilayer of decollement structural feature group. This may reflect that during the Preindosinian orogenic period, this area experienced extensional tectonism, giving rise to a local uplift_layered decollement structural system (i.e.uplift-decollement structure).　　

关 键 词：隆-滑构造 前印支造出期 成因探讨 庐山地区 

分 类 号：P542.3[天文地球—构造地质学]