THE GEOLOGICAL CHARACTOR AND METALLOGENIC MECHANISM OF THE XICHA GINCHANG GOUGOLD DEPOSIT

Xicha, Ginchang Gou Gold ore deposit are belong to strata-bound break-alteration tapy, It's metallogenic times are in the early Yenshanian to Indo-Chinese epoch, The information about the elememt abundance and it' sevolution in stratiform indicate that the metallogenic source materiab of the deposit have double features, some of them came from strtr form and perhaps parts from magmatic rocks. Stable isotopic data as follow; Xicha gold are deposit:δ³⁴S=1.9‰-7.4‰; Jin Chang Gou:δ³⁴S=3.2‰-5.1‰. It indicate this two ore deposit with similar sulphur isotopic component have the similar sulphur source. (δ¹⁸O_H2o=5.3‰-66.4‰;δC¹³=-6.1‰ Fluiel inclusions datas indicate that metallogenic fluid nrc-mainly or idate water, metallogenic tempeture concentrate on the 142-290℃. from this, we infer the ore-bearing solutions probale the mixture water of magmatic water and anno spheric precipitution. The ore-bearingsolutions possible came from the stratifom.