ORE-FORMING FLUID CHARACTERISTICS OF THE JIJIAWA GOLD DEPOSIT IN HENAN PROVINCE

摘要

The Jijiawa gold deposit, Henan Province, is located in the western part of the Xiong?er moun- tain gold polymetallic ore concentration area. The mining stratas are consisted of the Taihua Group of Neoarchean, which mainly are biotite plagioclase gneiss, long oblique angle gneiss and shallow parti- cle rock, and the Mesoproterozoic Xiong?er Group, which mainly are amygdaloidal andesite, porphyri- es andesite and dacite. And the intrusive rocks are mainly diabasic dike in the Mesoproterozoic Xiong?er Group. SN and NE trend fault segments are very well developed in the deposit area, and they are the main ore-controlling structure.