摘要
对阜新地区主要构造旋回变质作用、变形特征的研究表明,阜平期、四堡期和燕山期为阜新地区的3个主要变质时期,分别遭受了麻粒岩相-角闪岩相、低角闪岩相-高绿片岩相及绿片岩相变质作用;阜平期分为3幕变形,四堡期分为2幕变形,燕山期分为5幕变形,构造变形具有从深层次→中浅层次→表层次的演化规律;阜平期构造运动控制了区内鞍山式铁矿的成矿,燕山期构造运动控制了区内热液型金、铜、萤石、沸石、膨润土矿产和煤、油页岩等沉积型矿产的成矿。
According to field survey and existing data the paper focuses on the research of main tectonic cycles＇ metamorphism and deformation features of Fuxin area. Fuping, Sipu and Yanshan periods are the main metamorphic periods during which metamorphism of granulite-amphibolite facies, low amphibolitehigh greenschist facies and greenschist facies took place. Fuping period is divided into 3 deformation episodes, Sipu period 2 deformation episodes and Yanshan period 5 deformation episodes. The tectonic deformation is characterized by evolution from deep level through medium-shallow level to surfacial level deformation. Tectonic movement of Fuping period controls formation of Anshan type iron deposit, tectonic movement of Yanshan period formation of hydrothermal gold, copper, fluorite, zeolite and bentonite de- posits and coal and oil shale deposits.
出处
《地质找矿论丛》
CAS
CSCD
2013年第1期111-117,共7页
Contributions to Geology and Mineral Resources Research
基金
中国地质调查局辽宁1:250 000阜新市(K51C002002)幅区调修测(编号:基[2010]矿评01-10-03)
