塔里木盆地北部新生代构造演化与铀成矿作用  

RELATIONS BETWEEN THE STRUCTURAL EVOLUTION IN CENOZOIC AND URANIUM METALLOGENY IN THE NORTH OF TALIMU BASIN

作　　者：刘刚[1] 王国荣[1] 阿种明[1] 

机构地区：[1]中国核工业二一六大队,新疆乌鲁木齐830011

出　　处：《新疆地质》2010年第1期95-98,共4页Xinjiang Geology

摘　　要：塔里木盆地北部新生代构造演化,以古近纪构造相对宁静期和新近纪以来构造强烈活动期为特征.新近纪以来强烈的构造挤压,使盆山结合带中的中新生界遭受大幅度抬升剥蚀和褶皱冲断,早期形成的铀矿化被抬升暴露于地表,强烈的剥蚀沉积作用使铀元素在新生代发生活化迁移,形成与古近纪海退相关的泻湖相蒸发型铀矿化、与陆内造山区域差异升降相关的氧化带型铀矿化和与油气还原有关的铀矿化.The structural evolution in Cenozoic era in the north of Talimu basin include the quiet period in Paleocene and the intensive activity period in Neocene,The strong tectonic extrusion since Neocene gave uplift denudation and folding thrust to the stratum in Miocene in basin--mountain coupling zone. The uranium mineralization formed before was uplift to the ground. The uranium was activated and migrated bu Strong denudation and redeposit, those formed the lagoon facies evaporated uranium mineralization related with regression in Paleocene, oxidation uranium mineralization related with regional elevation and subsidence by interior orogeny, The uranium mineralization related with combination gas reduction.

关 键 词：塔里木 新生代 构造 再迁移 铀成矿 

分 类 号：P619.14[天文地球—矿床学]