Controls on the porphyry Cu-Au mineralizing potential of magmas in continental collision settings

大陆碰撞背景下岩浆斑岩铜金矿化潜力的控制

基本信息

项目摘要

The aim of this project is to evaluate the influence of magmatic factors on the porphyry Cu-Au mineralizing potential of magmas in continental collision settings. A popular view is that the high fertility of postcollisional, potassium-rich magmas stems from the partial melting of sulfide-rich cumulates that were deposited in the lower crust during a previous stage of subduction-related magmatism. This hypothesis will be tested using a dual approach that involves both experiments and studies on natural samples. In the experiments, natural, sulfide-bearing cumulates will be subjected to high pressures and temperatures to induce partial melting, and the obtained run products will be thoroughly characterized with regard to their composition, the oxygen fugacity, and the abundances of sulfur, H2O and metals in the silicate melt. The studies on natural samples aim at: (1) characterizing additional lower crustal cumulates that can be used as starting materials for the experiments, and (2) reconstructing the composition, formation conditions and metal content of a number of natural, postcollisional magmas associated with both mineralized and barren systems, such that the results can be directly compared with those obtained from the experiments.
本项目的目的是评价大陆碰撞背景下岩浆因素对斑岩型铜金成矿潜力的影响。一个流行的观点是,高肥力的碰撞后,富钾岩浆源于部分熔融的硫化物丰富的堆积物,沉积在下地壳在前一阶段的俯冲有关的岩浆活动。这一假设将使用涉及自然样本实验和研究的双重方法进行测试。在实验中,天然的,硫化物轴承累积将受到高压和高温,以诱导部分熔融,并获得运行产品将彻底的特点,就其组成,氧逸度,和硫,水和金属的丰度在硅酸盐熔体。对自然样品的研究旨在:(1)确定可用作实验起始材料的其他下地壳堆积物的特征,(2)重建与矿化和贫瘠系统有关的一些自然碰撞后岩浆的成分、形成条件和金属含量,以便可以将结果与实验结果直接进行比较。

项目成果

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Dr. Andreas Audétat其他文献

Dr. Andreas Audétat的其他文献

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{{ truncateString('Dr. Andreas Audétat', 18)}}的其他基金

Development of new oxybarometers for silicic magmas
新型硅岩浆氧压计的研制
  • 批准号:
    261400976
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Fraktionierung von Schwefel, Kupfer und Gold in zweiphasigen Fluiden
两相流体中硫、铜和金的分馏
  • 批准号:
    53284878
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Behavior of volatiles and ore-forming metals during high-pressure differentiation of arc magmas
电弧岩浆高压分异过程中挥发物和成矿金属的行为
  • 批准号:
    520462435
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes

相似国自然基金

云南中甸地区斑岩铜(金)矿化与大陆动力学背景研究
  • 批准号:
    40372049
  • 批准年份:
    2003
  • 资助金额:
    35.0 万元
  • 项目类别:
    面上项目

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Reconstructing the Magmatic and Hydrothermal Evolution of the Au-rich, Cu-Poor Dorado Porphyry Deposit, Chile: Implications for Cu/Au Ratios in Porphyry Deposits Worldwide
重建智利富金、贫铜多拉多斑岩矿床的岩浆和热液演化:对全球斑岩矿床中铜/金比率的影响
  • 批准号:
    2214119
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    2022
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    --
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Fertility of subduction and post subduction magmatism associated with porphyry- and epithermal-Cu-Au mineralisation in the Aegean using zircon geochro
使用锆石地色仪研究与爱琴海斑岩和浅成热液铜金矿化相关的俯冲和俯冲后岩浆活动的丰度
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    2506281
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    2021
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    --
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    Studentship
Study on hydrothermal copper deposit: Why do porphyry Cu deposits form?
热液铜矿床研究:斑岩铜矿床为何形成?
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    20K04123
  • 财政年份:
    2020
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    --
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PGE distribution in the New Afton Cu-Au porphyry deposit**
New Afton 铜金斑岩矿床中 PGE 的分布**
  • 批准号:
    536604-2018
  • 财政年份:
    2018
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    --
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Magmatic Evolution of the Kerr-Sulphurets-Mitchell Cu-Au Porphyry Deposit, Northwestern British Columbia, Canada
加拿大不列颠哥伦比亚省西北部 Kerr-Sulphurets-Mitchell 铜-金斑岩矿床的岩浆演化
  • 批准号:
    487515-2016
  • 财政年份:
    2018
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    --
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    Postgraduate Scholarships - Doctoral
Magmatic Evolution of the Kerr-Sulphurets-Mitchell Cu-Au Porphyry Deposit, Northwestern British Columbia, Canada
加拿大不列颠哥伦比亚省西北部 Kerr-Sulphurets-Mitchell 铜-金斑岩矿床的岩浆演化
  • 批准号:
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加拿大不列颠哥伦比亚省西北部 Kerr-Sulphurets-Mitchell 铜-金斑岩矿床的岩浆演化
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    487515-2016
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Contrasting tectonic and magmatic signatures of convergent margin magmas associated with porphyry Cu versus iron oxide-copper-gold deposits
与斑岩铜矿床和氧化铁-铜-金矿床相关的会聚边缘岩浆的构造和岩浆特征对比
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    2015
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Structural, magmatic, and hydrothermal controls on high-grade mineralization at the Red Chris porphyry Cu-Au deposit, British Columbia
不列颠哥伦比亚省红克里斯斑岩铜金矿床的构造、岩浆和热液对高品位矿化的控制
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Tectonomagmatic setting of the sulphurets Cu-Au porphyry-epithermal district, Northwestern British Columbia
不列颠哥伦比亚省西北部硫磺矿铜-金斑岩-浅成热液区的构造岩浆环境
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