准噶尔造山带地壳结构初探  

PRELIMINARY DISCUSSION ON THE CRUSTAL STRUCTURE OF JUNGGAR OROGENIC BELT

作　　者：梁云海[1] 张克旗[1] 李卫东[1] 

机构地区：[1]新疆地质矿产勘查开发局第一区域地质调查大队,新疆乌鲁木齐830011

出　　处：《新疆地质》1999年第4期305-311,共7页Xinjiang Geology

基　　金：国家"305"项目!(75-56-01-30)

摘　　要：准噶尔造山带地壳结构复杂 ,构造形态多样。根据地球物理资料 ,特别是国家“30 5”项目可可托海至阿克塞地学大断面反映出 ,准噶尔造山带至少由四个不同时代、不同性质的地质块体拼合而成。地体间为深断裂或超岩石圈深断裂分隔。在地块内部不同层次之间也常有巨型水平剪切或滑脱带存在 ,造成了准噶尔造山带在垂向上有明显的分层性 ,在横向上具有不均一性和不连续性。The crustal structure of Junggar orogenic belt is very complex.It has a diversity of structural patterns based on the geophysics data,especially the geo section from Keketokay to Shankou reflects that the Juggar orogenic belt was composed by at least 4 blocks with different property and forming time.The blocks were separatecl by deep fractures.Inside the blocks,there were also some large scale shear sones or glide belts which has a discontinous and uneven feature in horizontal direction.

关 键 词：准噶尔 地壳结构 超岩石圈断裂 地体拼合 

分 类 号：P542.2[天文地球—构造地质学]