Sulfide Partial Melting at Broken Hill: Process and Implications

布罗肯山的硫化物部分熔融：过程和影响

• 批准号: DP0451002
• 负责人: Prof John Mavrogenes
• 金额: $ 8.36万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0451002
• 关键词: Sulfide; Partial; Melting; Broken; Hill

Based entirely on experimental studies, we suggested that the sulfide ore at Broken Hill, N.S.W., partially melted during granulite-facies metamorphism. Our subsequent discovery of sulfide melt inclusions in silicates associated with the ore strongly supports this assertion. This proposed research will evaluate the extent of melting and the composition of such a melt as well as the effect of this melt on the rocks surrounding the ore. The results of this basic research will not only impact on Broken Hill genetic models specifically, but could profoundly effect our understanding of metamorphic and magmatic sulfide deposits globally.

完全基于实验研究，我们认为，在布罗肯希尔，N.S.W.，在麻粒岩相变质作用中部分熔融。我们随后在与矿石有关的硅酸盐中发现的硫化物熔融包裹体有力地支持了这一论断。这项拟议的研究将评估熔融的程度和这种熔融的成分，以及这种熔融对矿石周围岩石的影响。这一基础研究的结果不仅将对布罗肯希尔成因模式产生具体影响，而且将深刻影响我们对全球变质和岩浆硫化物矿床的认识。