苏北高压-超高压变质带中成矿作用  

Mineralization of High-Pressure and Ultrahigh-Pressure Metamorphic Belt in Northern Jiangsu Province

作　　者：余金杰[1] 王平安[2] 黄建平[3] 王辉[3] 李晓峰[1] 

机构地区：[1]中国地质科学院矿产资源研究所,北京100037 [2]中国地质科学院地质力学研究所,北京100081 [3]江苏省地质调查研究院,江苏南京210018

出　　处：《地球科学（中国地质大学学报）》2006年第4期520-526,共7页Earth Science-Journal of China University of Geosciences

基　　金：国家重点基础研究发展规则项目(No.2003CB716507).

摘　　要：以苏北地区为例,在分析区域岩石学、构造地质学和成矿学资料的基础上,结合江苏省地质调查院和江苏省地质矿产局第六地质大队有关区域地质调查和矿产资料,初步建立了2个成矿系列,即与超高压变质作用有关的金刚石-金红石-蛇纹石-蓝晶石-大理石成矿系列和与高压变质作用有关的磷-水晶-蓝晶石成矿系列.前者与印支期巨量物质超深俯冲有关,后者与稍晚发生的高压-超高压变质带的折返事件有关.本区可能存在燕山期金、银多金属成矿系列,在下一步地质找矿时值得注意.Many deposits occur in the high-pressure and ultrahigh-pressure belt, northern Jiangsu Province, China. Diamond, rutile, kyanite, and marble metallogenic series, and phosphorus, quartz, and kyanite metallogenic series are presented on the basis of regional petrology, structural geology, metallogeny and mineralization age in northern Jiangsu Province. The former was formed when a huge amount of material from the Yangtze plate was subducted northwards beneath the North China plate. The latter is＇associated with the exhumation of the high-pressure and ultrahigh-pressure belt. The paper also discusses the existence of the Yanshanian gold, silver, and polymetallic metallogenic series Its formation is related to the Yanshanian post-exhumation extension event.

关 键 词：高压-超高压变质作用 金属和非金属矿 成矿系列 巨量物质超深俯冲 苏北. 

分 类 号：P611.3[天文地球—矿床学]