摘要
本文在对比分析矿区火成岩（围岩）及含矿段岩矿石稀土元素、微量元素的基础上，结合矿石稳定同位素及包裹体特征对矿床成因作了探讨。根据本区微量元素性状及其分布特征，指出了含矿段火成岩与矿区内脉状火成岩侵人体（β_μ及γ_π）及上侏罗统火成岩的微量元素特征差异，同时认为：矿床是由局部火山喷气并受中温热液改造而成，含矿段矿化火山岩是由特定火山喷气作用形成的产物，它与区内的脉状火成岩侵人体及上侏罗统火山岩之间没有成因联系，对矿床改造作用的中温热液，主要来自深部隐伏碱性侵人体。
Based on the studies of the REE and trace elements of igneous rocks, and the stable isotope and inclusions Of the ore bodies, this paper discusses the genesis of the dePOsit. The characteristics of the REE and trace elements show that there does not exist genetic relation among the orebearing igneous rocks and intmsions(p. and V.) in the mine, as well as volcanic rocks of upper Jurassic series, and that the deposit was formed by partial volcanic exhalation with reformation of mesothermal solution which derived from the hidden alkaline intrusion at depth.
出处
《大地构造与成矿学》
EI
CAS
CSCD
1999年第4期345-352,共8页
Geotectonica et Metallogenia
关键词
多金属矿床
矿床成因
地球化学
广东
Guangdong
Yushui polymetallic deposit
geochemistry
genesis of deposit
