首页> 外文学位 >Source of fluorine and petrogenesis of the Rio Grande Rift type barite-fluorite-galena deposits.
【24h】

Source of fluorine and petrogenesis of the Rio Grande Rift type barite-fluorite-galena deposits.

机译:里奥格兰德大裂谷型重晶石-萤石-方铅矿矿床的氟来源和成岩作用。

获取原文
获取原文并翻译 | 示例

摘要

Abundant fluorite mineralization in Rio Grande Rift (RGR) barite-fluorite-galena deposits is anomalous compared to typical Mississippi valley type deposits to which they have been compared, and the source of the fluorine in these deposits is controversial.;In this study we used chlorine isotopes to test the possibility of an asthenospheric source of fluorine in the RGR deposits. Chlorine was used as proxy for determining the source of the fluorine because chlorine, unlike fluorine, has more than one isotope and thus can be used as an isotopic tracer. Chlorine and fluorine exhibit chemically similar behavior, and therefore are likely to be derived from the same source if associated with rift related magmatism. Complimentary to chlorine isotopic studies, Br/Cl ratios were also measured from the fluorite fluid inclusions and applied as additional tracers. Sr and Nd isotopes were measured from fluorites, granites, carbonates, and asthenospheric basalts to aid in understanding the petrogenesis of RGR deposits.
机译:与已比较的典型密西西比河谷型矿床相比,里奥格兰德大裂谷(RGR)重晶石-萤石-方铅矿矿床中大量的萤石矿化是异常的,并且这些矿床中的氟源存在争议。氯同位素来测试RGR沉积物中可能存在软流圈的氟源。氯被用来确定氟的来源,因为与氟不同,氯具有一个以上的同位素,因此可以用作同位素示踪剂。氯和氟在化学上表现出相似的行为,因此,如果与裂谷相关的岩浆作用相关联,很可能源自同一来源。除氯同位素研究外,还从萤石流体包裹体中测量了溴/氯比,并将其用作其他示踪剂。从萤石,花岗岩,碳酸盐和软流层玄武岩中测量了Sr和Nd同位素,以帮助理解RGR矿床的成岩作用。

著录项

  • 作者

    Partey, Frederick Kenneth.;

  • 作者单位

    Miami University.;

  • 授予单位 Miami University.;
  • 学科 Geology.
  • 学位 M.S.
  • 年度 2004
  • 页码 44 p.
  • 总页数 44
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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