THE GEOLOGICAL CHARACTERISTICS AND DEVELOPMENT PROSPECTS OF KUIGAN-MAIBULAK COPPER ORE DEPOSITS IN BALKHASH METALLOGENIC BELT
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摘要:
哈萨克斯坦巴尔喀什湖南侧的奎干-玛依布拉克铜矿区位于巴尔喀什成矿带环巴尔喀什-准噶尔成矿省楚伊犁-北天山成矿亚省的西北部, 发育一系列中小型斑岩型铜矿床。本文概要介绍了奎干-玛依布拉克铜矿区矿床地质、围岩蚀变、成矿作用、矿石矿物组成与主要矿床特征, 并分析了铜矿床开发的前景。该铜矿区含矿岩石主要为花岗闪长斑岩, 成矿元素组合主要为Cu-Au-Mo, 具有与巴尔喀什湖北侧科翁腊德、阿克斗卡等超大型斑岩型铜矿床类似的地质特征, 说明了巴尔喀什成矿带斑岩型铜矿床的分布跨越了巴尔喀什湖, 在湖南侧也具有较好的斑岩铜矿成矿远景。
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关键词:
- 奎干-玛依布拉克铜矿区 /
- 巴尔喀什成矿带 /
- 斑岩型铜矿床 /
- 成矿远景
Abstract:The Kuigan-Maibulak copper ore region on south bank of the Balkhash Lake is geologically located at the northwestern part of to the Chuyili-North Tianshan metallogenic sub-province, which is belonging to the circum-Balkhash-Junggar metallogenic province of the Balkhash metallogenic belt. It is composed of a series of small or medium porphyry copper deposits. This paper gives a brief introduction of geological features, wall-rock alterations, mineralizations, and mineral assemblages of the ore region and the main characteristics of the deposits, including Kaskirmis, Vostok Ⅱ and Ⅲ porphyry and vein-type copper deposits, and the Vostok Ⅰ Mo-chalcopyrite deposit, the evaluation of the reserves, the development and prospects of the deposits. According to the granodiorite porphyry magmatism and Cu-Au-Mo mineralization series of the Kuigan-Maibulak copper ore region, it is suggested that the Kuigan-Maibulak copper ore region and the North Balkhash copper deposit belt (with super-large Kounrad and Aktogai porphyry copper deposits and so on) on south and north banks of the Balkhash Lake have similar geological characteristics for porphyry copper deposit. The Kuigan-Maibulak copper ore region is considered to be an ore-forming and prospective zone for super-large porphyry copper deposits.
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