吉林晚三叠世—早白垩世花岗岩类型与盆地演化的关系及其成矿专属性  

Relationship of granite type with basin evolution and its metallogenetic specialization of Jilin Province in Late Triassic——Early Cretaceous

作　　者：齐成栋[1] 彭玉鲸[1] 殷长建[1] 路孝平[1] 周晓东[1] 

机构地区：[1]吉林省区域地质矿产调查所,长春130022

出　　处：《世界地质》2009年第2期166-170,共5页World Geology

基　　金：国家自然科学基金(40872049)资助

摘　　要：依据区域地质构造演化、岩石组合及同位素测年资料,将吉林省晚三叠世—早白垩世花岗岩划分为裂解型、走滑型和会聚型3类成因构造类型。其中,裂解型岩套与铜镍、磷、钒钛磁铁矿相关;走滑型岩套与贵金属、多金属矿相关;会聚型陆内板片(A型)俯冲亚型花岗岩套与斑岩型钼矿、金矿及铜矿等相关。早侏罗世岩浆作用形成的矿床以钼矿为主,晚侏罗世—早白垩世转向金、铜、铅锌矿为优势。成因构造类型岩浆岩套呈节律式地更新递进,反映出太平洋板块与东北亚滨太平洋大陆边缘互动的复杂性,及岩浆演化活动的规律和动态过程。Late Triassic-Early Cretaceous granites in Jilin Province can be divided into three types tectonically originately, including cracking, strick-slip and convergent types, according to the regional tectonic evolution, rock assemblage and isotopic dating data. The cracking type suite is related to Cu, Ni, P, V and Ti magnetite, the strick-slip type suite is related to the noble metallic and pollymetallic deposits, and subduction subtype granite suite of convergent type intra-plate sheet （ A type） is related to the porphyry Mo, Au and Cu deposits. The deposits formed by Early Jurrasic magmatism are mainly Mo, and turned to Au, Cu and Pb-Zn deposits in Late Jurassic- Early Cretaceous. The regular update and progress of cause structure type magmatic suite reflect the interactive complexity between the Pacific Plate and the Northeast Asian continental margin of peri-Pacific Plate, and the evolutinary regulartion of the magmatism.

关 键 词：花岗岩类型 盆地演化 成矿专属性 晚三叠世-早白垩世 吉林省 

分 类 号：P534.5[天文地球—古生物学与地层学] P588[天文地球—地质学]