巽他群岛主要成矿带及典型矿床地质特征

Geological Characteristics of Main Metallogenic Belts and Typical Deposits in Sunda Islands

巽他群岛大地构造位置位于欧亚板块、印度-澳大利亚板块与太平洋板块结合的部位,板块间长期的相互作用引发多期次构造-岩浆事件,在这一地区形成了丰富的矿产资源。根据矿床产出的大地构造背景、矿产种类、矿床类型、矿床规模、矿床组合等,将巽他群岛划分为苏门达腊-爪哇成矿带、苏拉威西成矿带、东加里曼丹成矿带、南西加里曼丹成矿带、古晋成矿带、帝汶岛成矿带,并对各成矿带的矿产概况、地质背景及某些典型矿床地质特征进行了总结,认为在六大成矿带中,苏门达腊-爪哇成矿带和苏拉威西成矿带研究程度最高、发现矿床最多、最具找矿前景。

The Sunda Islands is located at the junction of Eurasian plate, Indian-Australian plate and Pacific plate. The long-term interaction between the plates triggers multiple tectonic-magmatic events, which forms abundant mineral resources in this area. According to the geotectonic background, mineral types, deposit types, deposit scale and deposit associations of the deposits, the Sunda Islands are divided into Sumatra-Java metallogenic belt, Sulawesi metallogenic belt, East Calimantan metallogenic belt, South West Calimantan metallogenic belt, Gujin gold metallogenic belt and Timor Island metallogenic belt. The mineral situation, geological background and some typical ore deposits of each metallogenic belt are also discussed. The geological characteristics of mineralization are summarized. It is considered that the Sumatra-Java metallogenic belt and Sulawesi metallogenic belt have the highest degree of research, the most ore deposits discovered and the most prospecting prospects among the six metallogenic belts.