吉林二道洋岔脉状铜矿床成矿地质特征

吉林二道洋岔铜矿床位于龙岗背斜南端的中生代二密火山盆地中,受燕山期石英闪长岩体内外接触带中弧形构造裂隙控制。主要矿体呈薄脉状,空间上成群成带分布。并对成矿条件及矿床成因进行了探讨。

ORE-FORMING GEOLOGICAL FEATURES OF THE ERDAOYANGCHA VEIN TYPE COPPER DEPOSIT, JILIN PROVINCE

The Erdoayangcha copper mine is located in the Ermi Mesozoic volcanic basin in the Longgang anticline. The deposit is controlled by the arc-like structural fissure in the inner & outer contact zones of the Yanshanian quartzdiorite.The major orebodies occurred as veilets. In spacer they occur in groups and zones with alternation between the thin and the thick, and joint together from the beginning to the end with the features of plunging and reapperance,belonging to the typical hydrothermal fissure_filling deposit. The article describes the geological aspects of the mine and tile geological features of metallogeny, meanwhile, a preliminary study on the origin of the deposit has been made.