海南岛卡林型金矿特征及成因分析  

Characteristics and genesis analysis of the Carlin-type gold deposit in Hainan Island

作　　者：符气鑫 邢增富[1,2] 洪彪 岑锐 FU Qi-xin;XING Zeng-fu;HONG Biao;CEN Rui(Hainan Key Laboratory of Marine Geological Resources and Environment,Haikou 570206,Hainan,China;Hainan Institute of Geological Survey,Haikou 570206,Hainan,China)

机构地区：[1]海南省海洋地质资源与环境重点实验室,海南海口570206 [2]海南省地质调查院,海南海口570206

出　　处：《世界有色金属》2024年第20期57-60,共4页World Nonferrous Metals

基　　金：中国地质调查局矿产地质志项目(编号DD20221695,DD20190379);海南王下-白沙金铜多金属矿床远景调查(编号1212011085394)。

摘　　要：海南岛已发现的31处金矿产地,属于卡林型金矿的有2处,分布在海南岛西南部的王下地区。赋矿地层为石炭系和二叠系,矿体受逆冲滑覆构造形成的断裂构造和倒转背斜层间破碎带控制。研究区内Au水系沉积物异常发育,异常区内成矿地质条件好。金矿石类型可分为方解石-石英复合脉型、蚀变岩型和构造角砾岩型三种。海南岛卡林型金矿矿源主要为石炭系,成矿时代主要为晚侏罗纪~晚三叠纪,根据成矿特征,总结了海南岛卡林型金矿的成矿阶段。There are 31 gold deposits discovered in Hainan Island,of which 2 belong to the Carlin-type gold deposits,distributed in the WangXia area in the southwest of Hainan Island.The ore-bearing strata are Carboniferous and Permian,and the ore bodies are controlled by fault structures and overturned anticline interlayer fracture zones formed by thrust nappe structures.In the study area,Au stream sediment anomalies are exceptionally developed,indicating favorable geological conditions for mineralization within the anomalous area.The types of gold ores can be classified into three categories:calcite-quartz composite vein type,altered rock type,and tectonic breccia type.The Carlin-type gold deposits in Hainan Island mainly originate from the Carboniferous System,and the mineralization era is mainly from the Late Jurassic to the Late Triassic.Based on the metallogenic characteristics,the genesis of Carlin-type gold deposits in Hainan Island has been summarized.

关 键 词：海南岛卡林型金矿 地质特征 地球化学 矿床成因 

分 类 号：X523[环境科学与工程—环境工程]