台湾含金斑岩铜矿床

台湾省主要金属矿产为金和铜 ,本文只介绍斑岩铜矿。为了解台湾斑岩铜矿产出的地质背景 ,本文简要分析了台湾地区的地质概况 ,以及台湾斑岩铜矿与环太平洋带其他同类型铜矿床的对比情况。台湾斑岩铜矿主要产在台湾省东部海岸山脉及临近的小岛上。最大的铜矿床为奇美铜矿 ,已达特大型规模。斑岩铜矿的出现与欧亚、太平洋两大板块碰撞有密切关系。本文较详细地介绍了奇美铜矿床产出的时代、岩石、围岩蚀变及矿体分布特征 ,同时还简要介绍了台湾东海岸的都峦山及兰屿岛斑岩铜矿矿化情况。

AURIFEROUS PORPHYRY COPPER DEPOSITS IN TAIWAN

Copper and gold are the major components in their mineral deposits in Taiwan Province. This paper only introduces the minerogenic background of porphyry copper deposits, and briefly analyses the geological conditions of the Taiwan area. In addition, comparisons are made with similar copper deposits in the circum\|Pacific belt. Porphyry copper deposits of Taiwan occur mainly in the coast of eastern Taiwan and its adjacent islets. The biggest one is the Chimei copper mine, whose reserves are of large\|scale. The origin of porphyry copper deposits has an affinity with the collision of Eurasia plate with the Pacific plate. Described in detail in this paper are the ore\|forming epoch, petrology, wall\|rock alteration and orebody distribution character, of the Chimei porphyry copper mineralization in the Tuluanshan and Lanyu islands, which are located in the coast of eastern Taiwan.