金属鉱物資源探査技術の開発と適用

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This paper reviews the development of remote sensing, geophysical and geochemical techniques, and their application to mineral exploration over the last decade in addition to introducing the related research and development works by the Metal Mining Agency of Japan (presently Japan Oil, Gas and Metals National Corporation). In the field of geologic remote sensing, ASTER data with high spatial and spectral resolutions is widely used as well as conventional satellite data such as LANDSAT and SPOT data. Airborne data acquisition with either optical or radar sensor is commonly used. Hyper spectral data acquisition has also been developed both in satellite and airborne systems. Geophysical techniques are versatile using airborne, ground and drill-hole methods. In gravity, magnetic, electric and electromagnetic methods, several techniques have been developed in data acquisition and analysis. Airborne gravity method has been recently developed and started to be used in exploration. Though the geochemical techniques are still based on conventional methods employing rocks, soils and stream sediments, better understanding to the geochemical phenomenon has greatly improved interpretation of the results. Regolith mapping method, which was resulted from research work for the deeply weathered tropical terrain, is one of the good examples. Exploration manager is required to follow the more advanced mineral exploration techniques and apply the most suitable combination of the methods to the project in response to the exploration stage.
社団法人資源・素材学会の論文
2005-07-25

金属鉱物資源探査技術の開発と適用

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