Extraction of promising mineral area and acquisition of mining property using satellite image analysis technique in northern Chile.

概要

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Extraction of promising mineralized area, application of mining property and ground truth were carried out using satellite image analysis technique in northern Chile.<BR>We have developed and prepared analysis techniques for extraction of promising mineralized area using ASTER data in joint researches with ERSDAC. After public release of ASTER data, we immediately started to gather ASTER data and analyzed over 120 scenes of ASTER data, and we have picked up more than 120 promising areas. Considering regional geol-ogy, metallogenic belt and existing mining properties, we have limited to 15 areas (ca. 770km<SUP>2</SUP>) of high priority from the ini-tial promising areas. From Oct. 2001, application of mining property and ground truth of 15 promising areas were started. In the acquired mining properties, geological survey is progressing continuously and some drilling survey caught some of good mineralizations. We will shift to detail survey in those promising areas.<BR>On the other hand, drastically we can reduce time and costs for analysis of geology, structure and alteration zone in such vast area as northern Chile by application of satellite image analysis using ASTER data. Results of ground truth have revealed high efficiency of analysis techniques for extraction of the prospects using ASTER data.
資源地質学会の論文