• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>MATEC Web of Conferences >Geochemical Characteristics and Geological Significance of the Tawangshan gold deposit in Dongfang City, Hainan Province
【24h】

Geochemical Characteristics and Geological Significance of the Tawangshan gold deposit in Dongfang City, Hainan Province

机译：海南省东方市塔王山金矿床的地球化学特征及地质意义

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Tawangshan gold deposit is located in the southwest of the Gezhen ductile shear zone in southwestern Hainan Island. Major, trace and rare earth element characteristics of the least altered granites and altered granite ores, as well as the oxygen and hydrogen isotopic features of the quartz, the sulfur and lead isotopic features of the pyrites, galena from this deposit were systematically studied. The altered granite ores content of Fe2O3/(Fe2O3+FeO) ranges from 0.409 to 0.410, showing strong magma reducibility. REE characteristics of the granite ores are similar to those of the least altered granites, indicating a close relationship between the mineralization and granite. Hydrogen and oxygen analysis results show that the content of 18OSMOW ranges from 7.7‰ to 16.3‰, δ18OH2O ranges from 1.0‰ to 6.8‰, suggesting that the ore-forming fluid was the dual nature of the metamorphic and magmatic hydrothermal. The compositions of sulfur isotope and lead isotope imply that the metallogenic materials of the deposit derived from the deep magma mixing with the shell source material contamination. Ore deposit geological features reflect the obvious characteristics of magmatic hydrothermal and porphyritic granite is mineralized rocks, implying the deposit was formed in the post-collisional extensional tectonic setting.
机译：塔王山金矿位于海南岛西南部的格镇韧性剪切带的西南部。系统地研究了该矿床中蚀变最少的花岗岩和蚀变的花岗岩矿石的主要，痕量和稀土元素特征，以及石英的氧和氢同位素特征，黄铁矿，方铅矿的硫和铅同位素特征。 Fe2O3 /（Fe2O3 + FeO）的花岗岩矿石含量变化范围为0.409至0.410，显示出强烈的岩浆还原性。花岗岩矿石的稀土元素特征与蚀变最少的花岗岩的稀土元素特征相似，表明矿化与花岗岩之间存在密切关系。氢氧分析结果表明，18OSMOW含量为7.7‰至16.3‰，δ18OH2O含量为1.0‰至6.8‰，表明成矿流体是变质岩浆热液的双重性质。硫同位素和铅同位素的组成暗示着深部岩浆衍生的沉积物成矿物质与壳源物质的污染。矿床的地质特征反映了岩浆热液的明显特征，斑状花岗岩是矿化岩，暗示该矿床是在碰撞后伸展构造环境中形成的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号