南美安第斯地区成矿区带划分探讨

南美安第斯成矿带是世界上最著名的Cu、Au、多金属巨型成矿带,产有一系列大型-超大型Cu、Au、多金属矿床,是目前世界上最重要的找矿投资热点地区之一。文章在系统收集资料和综合研究的基础上,依据安第斯成矿带的基底组成、构造_岩浆演化、板块俯冲形式、成矿作用以及主要成矿类型的差异,将安第斯地区自北而南划分为3个Ⅱ级成矿省和14个Ⅲ级成矿带,并对各成矿区带的地质与成矿特征进行了概要阐述,为安第斯地区区域成矿规律研究提供了基础,也为中国企业在该地区的矿产勘查、开发投资提供了指导信息。

Division of Andean metallogenic domain in South America

The Andean metallogenic belt is a worldwide famous giant metallogenic belt for copper, gold and polymetals. There are a series of large-superlarge copper, gold and polymetallic deposits in Andean belt. It is hence one of the most important places for prospecting investment at present. In this paper, the authors divided the Andean metallogenic domain into three metallogenic provinces, i.e., north Andean, middle Andean and south Andean metallogenic provinces, based on the basement composition, tectono-magmatic evolution, plate subduction, difference of mineralizations and major metallogenic types of the Andes. The authors also divided the 3 metallogenic provinces into 14 metallogenic belts and briefly elaborated their geological backgrounds and metallogenic characteristics. The north Andean, the middle Andean and the south Andean metallogenic provinces were divided into six, five and three metallogenic belts, respectively. The fine division of the Andean metallogenic belt provides basic information for the further sub-division of the Andean metallogenic belt and the summarization of the regional metallogenic regularities. This study also provides the guiding information for Chinese companies'' mineral exploration and development investment in the Andes.