维多利亚西部Stavely地区的区域地质和矿物系统Regional geology and mineral systems of the Stavely region, western Victori

Stavely项目是澳大利亚地球科学与维多利亚。2014年，在为了更好地了解地下地质及其各种矿物系统的潜力。该地区有几条暴露不良的地带寒武纪火山岩和侵入岩，仅在航磁资料中可见，且与现代俯冲相关构造环境中发现的相似之处。相关矿化以斑岩、铜金和火山岩为主的块状硫化物矿物系统而闻名斯泰夫利山和黑山脉周围的岩石裸露在外。然而，尽管有矿物的历史可追溯到20世纪60年代末的勘探，尚未发现重要的经济矿床，以及斯塔夫利地区仍然是一个绿地地带。考虑到地质背景和已知矿物潜在的，机会存在的大型矿物系统发现广泛，但比较薄，比较年轻。Stavely项目旨在通过以下途径为Stavely地区的发现提供框架获取和交付竞争前的地球科学数据。这包括完成竞争前地层钻孔，以测试区域地质解释和恢复用于详细的岩性、岩石物理、地球化学和地质年代学分析的材料。这个研究结果将有助于了解隐伏区的矿物系统潜力。这些结果的地球化学解释作为区域地质和矿产的一部分Stavely Arc报告系统（Schofield等人，编制中）。此版本描述了用于获取地球化学数据的地球化学方法和程序作为Stavely项目的一部分。本次发布的数据包括全岩地球化学，4酸溶分析，部分提取技术（土壤气体碳氢化合物，移动金属离子，离子LeachTM），硫同位素分析，钕同位素分析，铅同位素分析，铬铁矿分析和黄铁矿分析。还包括有关时空地球化学油气的报告解释、铬矿岩石学和黄铁矿特征。

The Stavely Project is a collaboration between Geoscience Australia and the Geological Survey of  Victoria. During 2014, fourteen pre-competitive stratigraphic drill holes were completed in the  prospective Stavely region in western Victoria in order to better understand subsurface geology and its  potential for a variety of mineral systems. The Stavely region hosts several belts of poorly exposed  Cambrian volcanic and intrusive rocks which are visible largely only in aeromagnetic data and have  similarities to those found in modern subduction-related tectonic settings. Mineralisation associated  with porphyry Cu-Au and volcanic-hosted massive sulphide mineral systems is known where these  rocks are exposed around Mount Stavely and the Black Range. However, despite a history of mineral  exploration dating back to the late 1960s, significant economic deposits are yet to be discovered, and  the Stavely region remains a greenfields terrane. Given the geological setting and known mineral  potential, opportunity exists for the discovery of large mineral systems beneath extensive, but  relatively thin, younger cover. The Stavely Project aims to provide the framework for discovery in the Stavely region primarily through  the acquisition and delivery of pre-competitive geoscientific data. This includes the completion of precompetitive stratigraphic drill holes in order to test regional geological interpretations and recover  material for detailed lithological, petrophysical, geochemical and geochronological analysis. The  results will assist in understanding the mineral systems potential of the Stavely region under cover. Geochemical interpretation of these results is presented as part of the Regional Geology and Mineral  Systems of the Stavely Arc report (Schofield et al., in prep). This release describes the geochemical methods and procedures used to acquire geochemical data  as part of the Stavely Project. Data presented in this release include whole rock geochemistry, four  acid digestion analysis, partial extraction techniques (soil gas hydrocarbon, Mobile Metal IonTM, Ionic  LeachTM), sulphur isotope analysis, neodymium isotope analysis, lead isotope analysis, chromite  analysis and pyrite analysis. Also included are reports on spatiotemporal geochemical hydrocarbon  interpretation, chromite petrology and pyrite characterisation.