苏北高压-超高压变质带中成矿作用

余金杰; 王平安; 黄建平; 王辉; 李晓峰

苏北高压-超高压变质带中成矿作用

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

基金项目:

国家重点基础研究发展规则项目 2003CB716507

详细信息

作者简介:
余金杰(1966-), 男, 博士, 研究员, 从事矿产资源调查与评价工作.E-mail: yjjchina@sina.com

中图分类号: P611.3
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- 被引次数: 0
出版历程
- 收稿日期: 2006-04-15
- 刊出日期: 2006-07-25

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

1.
Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
2.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
3.
Jiangsu Geological Survey, Nanjing 210018, China

摘要

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.
- 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
Abstract: 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.
- high-pressure and ultrahigh-pressure metamorphism /
- metal and nonmetal deposits /
- metallogenic series /
- ultra-deep subduction of a huge amount of material /
- northern Jiangsu Province

HTML全文

图 1 苏北地区地质构造略图(据潘明宝等, 2002, 略有修改)

1.超高压变质地体; 2.高压变质地体; 3.大理岩; 4.榴辉岩; 5.石榴绿帘石变质带; 6.蓝晶石黄玉变质带; 7.中新生代断陷盆地; 8.构造岩片界线; 9.断层; 10.中生代花岗岩; 11.中生代基性火山岩; 12.蓝闪黑硬绿泥石变质带; ∑.蛇纹岩或超基性岩; ●.大型金红石矿; ◇.蓝晶石矿; ᐁ.磷矿

Fig. 1. Sketch map showing geology and structure of northern Jiangsu Province

下载: 全尺寸图片幻灯片

表 1 苏北地区大型榴辉岩型金红石矿的地质特征

Table 1. Geological characteristics of the large eclogite-hosted rutile deposits in northern Jiangsu Province

表 2 磷矿主要矿床简明特征

Table 2. Geological characteristics of the phosphorous deposits in the high pressure belt

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