新疆巴里坤县红石滩铜矿地质特征及成因探讨

Discussion on geological characteristics and genesis of hongshitan copper mine in balikun county, xinjiang

红石滩铜矿床位于准噶尔成矿省(Ⅱ)的唐巴勒-卡拉麦里(复合沟弧带带)Cr-Cu-Mo-Au-Sn-W-MoHg-Fe-Mn-U-硫铁成矿带(Ⅱ-2)。大柳沟组在该区少量出露,以断层形式与其他地层接触,属于大洋岛弧火山岩建造,区内断裂构造以北西为主,性质主要为早期为压扭性,晚期表现为张性。产出形态基本与构造线一致,尤以石英闪长斑岩最为普遍,该矿矿体主要在石英闪长斑岩的外接触带部位产出,本文主要结合矿区地质特征对其矿床成因进行探讨。

Hongshitan copper deposit is located in Tangbale-Karamaili(composite trench-arc zone)Cr-Cu-Mo-Au-Sn-W-Mo-Hg-Fe-Mn-U-pyrite metallogenic belt(II-2)of Junggar metallogenic province.Daliugou Formation is a volcanic rock formation of oceanic island arc,which is exposed in a small amount in this area and contacts with other strata in the form of faults.The faults in this area are mainly northwest,and their properties are mainly compressive-torsional in the early stage and tensive in the late stage.The occurrence pattern is basically consistent with the tectonic line,especially quartz diorite porphyry,which occurs mainly in the outer contact zone of quartz diorite porphyry.This paper mainly discusses the genesis of the deposit in combination with the geological characteristics of the mining area.