摘要
含金红石角闪质片岩分布于秦岭造山带东段南缘,西坪向斜南翼,是西峡金红石矿的含矿岩石.本文根据含金红石角闪质片岩的产出特征、矿物组合、结构构造、岩石化学和地球化学等方面的研究,认为其原岩主要是海底喷发的基性火山岩类,内夹少量沉积岩.其形成环境为陆缘断陷深海槽.后经区域变质作用,形成了含金红石角闪质片岩.
Rutile-bearing hornblende schist which host rutile deposits of Xixia County is distributed at the south limb of Xiping syncline in the south margin of the east Qinling orogenic belt. This paper presents results of studies on geological occurrence, texture and structure, petrochemistry and geochemistry of the rock revealing that the proto-rock is basic extrusives formed in deeply faulting marine trough at continental margin. The later metamorphisms make what it is now.
出处
《地质找矿论丛》
CAS
CSCD
1992年第3期61-70,共10页
Contributions to Geology and Mineral Resources Research
