• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >The distribution of the halogens in Sudbury Breccia matrix as pathfinder elements for footwall copper-PGE mineralization at the Fraser copper zone, Barnet main copper zone, and surrounding margin of the Sudbury igneous complex, Onaping-Levack area, Ontario, Canada.
【24h】

The distribution of the halogens in Sudbury Breccia matrix as pathfinder elements for footwall copper-PGE mineralization at the Fraser copper zone, Barnet main copper zone, and surrounding margin of the Sudbury igneous complex, Onaping-Levack area, Ontario, Canada.

机译：Sudbury Breccia基质中卤素的分布，是加拿大安大略省Onaping-Levack地区的Fraser铜矿区，Barnet主铜矿区以及Sudbury火成复合体周围边缘的下盘铜PGE矿化的探路元素。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A very hydrous, halogenated alteration halo exhibiting retrograde albite-epidote hornfels facies metamorphism has been identified in the pseudotachylite matrix of Sudbury Breccia which is detectable up to 150m from footwall Cu-Ni-PGE mineralization, within the ore-hosting Sudbury Breccia zones. Matrix within this alteration halo demonstrates elevated bulk [Cl] and [Br], bulk Cl/Br ratios, soluble [Cl−] and [Br−], bulk [Cu], and bulk [Pt+Pd+Au]. The insoluble alteration signature is carried by amphibole, chlorite, and biotite which increase in abundance, Cl-content, and Cl/(Cl+F) ratio as the ore-hosting breccia zone is entered and mineralization is approached. The soluble signature is carried by increasing amounts of fluids and salts trapped in primary fluid inclusions. The maximum temperature of this alteration event is estimated at ∼550°C and may have involved a fluid with elevated and widely variable f(HCL)/ f(HF) which changed the composition of hydroxysilicates and feldspar within the matrix. Evidence for mixing of magmatic fluid exsolved from the SIC with local groundwaters is presented.
机译：在Sudbury Breccia的准速晶石基质中发现了一个非常水化的卤化蚀变晕，呈现出逆序的钠长石-埃皮科德角岩相变质，该基质可在矿床所在的Sudbury Breccia区域中距下盘Cu-Ni-PGE矿化长达150m处被发现。这种改变晕圈中的基质显示出升高的体积[Cl]和[Br]，体积Cl / Br比，可溶性[Cl -]和[Br -]，体积[Cu ]和大块[Pt + Pd + Au]。不溶性蚀变特征由闪石，绿泥石和黑云母带动，随着进入矿床角砾岩带进入矿床，其丰度，Cl含量和Cl /（Cl + F）比增加。可溶性标记通过增加捕获在主要流体包裹体中的流体和盐的量来携带。估计该变化事件的最高温度约为550°C，可能涉及到流体中， f （HCL）/ f （HF）升高且变化很大。基质中羟基硅酸盐和长石的组成。提出了将SIC溶出的岩浆流体与当地地下水混合的证据。

著录项

  • 作者

    Hanley, Jacob James.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Geology.
  • 学位 M.Sc.
  • 年度 2002
  • 页码 284 p.
  • 总页数 284
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;
  • 关键词

  • 入库时间 2022-08-17 11:46:37

相似文献

  • 外文文献
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