摘要
新疆蒙库地区位于阿尔泰山南麓,南接准噶尔盆地。该地区花岗岩分布广泛,主要为华力西中、晚期花岗岩。对蒙库地区华力西中期(石炭纪)花岗岩进行分析和研究认为,该区花岗岩处于华力西期大陆边缘造山带环境中,具有汇聚、造山期花岗岩的特征。岩浆沿断裂带上侵就位,为板块俯冲作用、陆—陆碰撞构造环境下形成的活动大陆边缘岩浆弧。深入研究蒙库地区花岗岩有助于我们了解这一时期该地区区域构造、岩浆演化的规律。
The Mengku region is located at the southern foot of the Altay Mountains to the north of the Junggar basin.Middle and Late Variscan granite is widely exposed in this region.The study in the carboniferous granite indicates that the granite was formed in epicontinental orogenic zone in the Variscan continent-continent collision setting.A thorough investigation and study of the granite is of importance to understanding of tectonics and magmatic evolution in this region.
出处
《四川地质学报》
2010年第4期390-394,共5页
Acta Geologica Sichuan
关键词
大陆边缘造山带
华力西旋回
地球化学特征
新疆蒙库
epicontinental orogenic zone
Variscan cycle
geochemical characteristic
Mengku
Xinjiang
