摘要
雪龙山变质带由古—中元古代工江岩组、中梁子岩组、阿马普岩组及四十驮岩组和白龙里吾巴片麻岩、大宝山片麻岩，以及印支期叠加的箐口塘等两个糜棱岩带所组成。经历了以晋宁期为主，叠加了华力西期、印支期等多期变质，产生了三期结晶面理，主期变质达高绿片岩相→低角闪岩相中压区域动力热流递进变质；受到了同变质期和叠加了喜马拉雅期多期构造变形。原岩为古—中元古代大陆边缘增生复理石建造和钾质花岗岩建造。
AbstractThe Xuelong Mountain metamorphic zone consists of 4 rock formations of early-middle Proterozoic Gongjiang rock formation, etc, Bailongliwuba gneiss, Dabaoshan gneiss and 2 mylonite zones of Qingkoutang, etc, superimposed in Indosinian. It experienced the main Jinning period metamorphism superimposed by Variscan and Indosinian ones which formed crystalline planeation of 3 periods. The main period metamorphism is of high greenschist facies→low amphibolite facies of medium P regional dynamothermal progressive metamorphism. And it experienced he structural deformation in metamorphic period and that superimposed in Himalayan. The original rocks are of early-middle Proterozoic flysch formation of continental margin accretion and potassic granite formation.
出处
《云南地质》
1998年第1期17-26,共10页
Yunnan Geology
