地质找矿论丛2011,Vol.26Issue(3):239-248,10.
安徽铜陵狮子山铜矿田地球化学特征综述
Geochemical characteristic overview of the Shizishan ore-field at Tongling city, Anhui province, China
摘要
Abstract
Shizishan is the largest Cu-Au ore-field in the Tongling area, Anhui province. A variety of Cu-Au deposits with complex metallogeny, such as Dongshizishan, Xishizishan, Datuanshan, Laoyaling, Dongguashan and Huashupo occur mostly as blind ore bodies in Upper Carboniferous to Middle Triassic strata surrounding the granitic intrusion. The deposits are characterized by spatial zonation:stratabound skarn type at low level, upward skarn type and hydrothermal vein type. The two skarn types are economically important. Mineralization of the Shizishan ore-field is related to Hercynian and Yanshanian mag-matism but Yanshanian mineralization dominant. The intermediate-acid intrusions are the main sources of the metals of the Cu deposits. Quartz diorite, pyroxene monzodiorite and granodiorite are the main mag-matic rocks. The ore field is abundant with fluid inclusions and the inclusions are uniformly distributed with continuous and concentrate homogenization temperatures in a wide range, indicating a continous change in temperature of the multi-stage mineralization. The ore fluids are dominantly of magmatic water icorporated with minor meteoric water. The ore fluids ascended and spreaded rapidly under isothermal conditions.关键词
地质特征/流体包裹体/成矿作用/狮子山矿田/安徽省Key words
geological characters/ fluid inclusions/ stable isotopes/ the Shizishan ore field/ Anhui province分类
天文与地球科学引用本文复制引用
瞿泓滢,刘宏伟,裴荣富,李进文,王永磊..安徽铜陵狮子山铜矿田地球化学特征综述[J].地质找矿论丛,2011,26(3):239-248,10.基金项目
中国地质调查局危机矿山项目“铜陵市凤凰山铜矿深部岩石地球化学找矿预测”(编号:200799093)资助. (编号:200799093)