| 湘东锡田钨锡多金属矿区成岩成矿时代的再厘定 |
| |
| 引用本文： | 付建明,伍式崇,徐德明,马丽艳,程顺波,陈希清.湘东锡田钨锡多金属矿区成岩成矿时代的再厘定[J].华南地质与矿产,2009(3):1-7. |
| |
| 作者姓名： | 付建明 伍式崇 徐德明 马丽艳 程顺波 陈希清 |
| |
| 作者单位： | 付建明,徐德明,马丽艳,程顺波,陈希清(中国地质调查局宜昌地质调查中心,湖北,宜昌,443003);伍式崇(湖南省地质调查院株州矿产地质调查所,湖南,株州,412007) |
| |
| 摘 要： | 湘东锡田钨锡多金属矿床是地质大调查期间发现的一个大型矿床。矿体赋存在锡田复式花岗岩中及其与中泥盆统棋梓桥组的接触带上，主要矿床类型为矽卡岩型和破碎带蚀变岩型，其次为云英岩（或云英岩一石英脉）型。该复式花岗岩可划分为主体（中细粒斑状黑云母花岗岩）、补体（细粒含斑黑云母花岗岩）和晚期侵入体（细粒二云母花岗岩）。采用锆石SHRIMPU—Pb法，获得主体花岗岩的形成年龄为230．4±2．3Ma（MSWD=1．6）。本文通过对课题组及前人其它测年资料的对比分析，认为锡田复式花岗岩主体、补体和晚期侵入体分别属于印支期、燕山早期和燕山晚期；成矿作用与燕山早期花岗岩关系密切，是华南燕山早期大规模成岩成矿作用高峰期的产物。
|
| 关 键 词： | 锆石SHRIMP U—Pb法 成岩成矿时代 钨锡多金属矿床 湘东锡田 |
Reconstraint from Zircon SHRIMP U-Pb Dating on the Age of Magma Intrusion and Mineralization in Xitian Tungsten-tin Polymetallic Orefield, Eastern Hunan Province |
| |
| FU Jian-ming,WU Shi-chong,XU De-ming,MA Li-yan,CHENG Shun-bo,CHEN Xi-qing.Reconstraint from Zircon SHRIMP U-Pb Dating on the Age of Magma Intrusion and Mineralization in Xitian Tungsten-tin Polymetallic Orefield, Eastern Hunan Province[J].Geology and Mineral Resources of South China,2009(3):1-7. |
| |
| Authors: | FU Jian-ming WU Shi-chong XU De-ming MA Li-yan CHENG Shun-bo CHEN Xi-qing |
| |
| Institution: | FU Jian-ming1,WU Shi-chong2,XU De-ming1,MA Li-yan1,CHENG Shun-bo1,CHEN Xi-qing1(1.Yichang Centre of China Geological Survey,CGS,Yichang 443003,Hubei,China,2.Zhuzhou Institute of Mineral Resources,Geological Survey of Hunan,Zhuzhou 412007,Hunan,China) |
| |
| Abstract: | Large-scale Xitian tungsten-tin polymetal deposit which is locating in eastern Hunan province was newly discovered in the national geological survey in recent years.Three types of ore-body are found in this deposit which are skarn type,greisen-quartz vein type and fracture zone alteration rock type.Xitian granitic multiple intrusion dominately consist of medium-fine porphyritic biotite granite,with complementary fine biotite granite with much lesser phenocrysts and deuteric injections.In this paper,zircon S... |
| |
| Keywords: | zircon SHRIMP U-Pb dating age of magma intrusion and mineralization tungsten-tin polymetallic deposit Xitian eastern Hunan province |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
