鄂西黄陵背斜核部中段金矿基本特征及成矿规律  

BASIC CHARACTERISTICS AND METALLOGENETIC REGULARITY OF THE GOLD ORE DEPOSITS IN THE MIDDLE CORE OF HUANGLING ANTICLINE, WESTERN HUBEI PROVINCE

作　　者：熊成云[1] 韦昌山[1] 金光富 李文羡 向文金 

机构地区：[1]宜昌地质矿产研究所,宜昌443003 [2]湖北省宜昌地质勘探大队,宜昌443100

出　　处：《华南地质与矿产》1998年第1期32-40,共9页Geology and Mineral Resources of South China

基　　金：地矿部定向基金研究项目"鄂西黄陵背斜核部中段金矿的成矿预测及靶区优选"成果

摘　　要：黄陵背斜核部中段的石英脉型和蚀变岩型金矿,具有斜列侧伏性、群聚分带性、似等距性、自相似性及易采、易选等特点。金成矿过程经历了初始富集、预富集、工业富集、次生富集4个时期和岩浆热液主成矿期的4个阶段,黄陵花岗杂岩是其主要热源和矿源,复合剪切带和古构造格架控制其产布。金矿床为受剪切带控制的中低温岩浆热液型矿床,成矿时代为晋宁晚期,其形成主要与扬子旋回古造山作用有关。In the middle core of Huangling anticline, there are two types of Au deposits, quartz vein type and alteration rock type. The occurrence of Au deposits presents a special temporal-spatial pattern such as diagonal pitch, swarm accumulation zonation, equidistant as well as self-comparability. The metallogenesis process is divided into four epochs as follows: elementary enrichment, pre-enrichment, industrialization enrichment and epigenetic enrichment, and four stages in major metallogenesis epoch related with magmatic hydrothermal activity in later Jinning period. They are emphasized that Huangling granite complex is the major thermal and metallogenic elements source. Finally, this paper concluded that these Au deposits are a mesothermal-epithermal magmatic hydrothermal ones related with Yangtze orogenic cycle. They are the most important ore-controlling factors for compounding shear zones and the ancient structural networks in all ones.

关 键 词：金矿床 成矿规律 成矿时代 岩浆热液 成矿流体 造山作用 

分 类 号：P618.51[天文地球—矿床学]