signature=5697ae1a5fadd471f7e38bb24292523c,MT conductivity signatures of mineral systems: 3D MT over...

zhangpeng83424

于 2021-05-30 02:44:05 发布

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文章标签： signature=5697ae1a5fadd471f7e38bb24292523c

本文介绍了磁测技术在理解大型矿产系统中的应用，并展示了对西澳大利亚南部耶尔干克拉通进行的大规模3D磁测数据。这项250x250公里的调查覆盖了西部东部金矿超带和世界级的坎巴尔达镍矿及卡尔古利金矿。通过实验电导率数据解释MT结果，将地电导率模型与矿产系统分析联系起来。

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摘要：

Magnetotellurics (MT) is emerging as a key tool for understanding giant mineral systems. For MT to be effective in mineral exploration we require both an improved understanding of the causes of electrical conductivity anomalies and an increased number of surveys over known mineral deposits. We present results from a new, lithospheric-scale 3D MT dataset collected in the southern Yilgarn Craton, Western Australia. This 250x250 km survey covers the western Eastern Goldfields Super Terrane and the world-class Kambalda nickel and Kalgoorlie gold deposits. We interpret the electrical conductivity models using experimental electrical conductivity data to link the MT results to a mineral systems analysis.

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