摘要
花坤头营子侵入岩是花坤头营子旋卷构造的重要组成部分,共分出4个侵入体,分别为早石炭世辉绿岩、早三叠世闪长岩、中侏罗世二长花岗岩、早白垩世花岗斑岩,最晚还有一期流纹斑岩脉侵入.岩浆来源除早石炭世辉绿岩来自上地幔,余下几个序次来源于下地壳,并熔融了部分陆壳物质.以被动就位机制为特征.
The Huakuntouyingzi intrusive rock, as an important part of the Huakuntouyingzi vortex structure, can be divided into four intrusive bodies, namely, the Early Carboniferous diabase, Early Triassic diorite, Middle Jurassic monzogranite and Early Cretaceous granite porphyry, and the latest invasion of rhyolitic porphyry dyke. The magma of Early Carboniferous diabase originated from the upper mantle; while those of the other rock bodies were derived from the lower crust, with fusion of partial continental crust material. The relation between the intrusive rocks and tectonic evolution is characterized by passive emplacement mechanism.
出处
《地质与资源》
CAS
2015年第4期325-331,共7页
Geology and Resources
基金
辽宁省地勘局"1:5万梅勒营子
羊山
胜利
瓦房子镇幅区调"项目(0100121029)
关键词
侵入岩
旋卷构造
陆内造山
花坤头营子
华北板块
辽宁省
intrusive rock
vortex structure
intra-continent orogeny
Huakuntouyingzi
North China Plate
Liaoning Province
