Application of Mineral Exploration Models and GIS to Generate Mineral Potential Maps as Input for Optimum Land-Use Planning in the Philippines |
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| Authors: | Carranza Emmanuel John M Mangaoang Jerrysal C Hale Martin |
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| Institution: | (1) International Institute for Aerospace Survey and Earth Sciences (ITC), Delft, The Netherlands;(2) Mines and Geosciences Bureau, Regional Office No. 5, Legazpi City, Philippines;(3) Mines and Geosciences Bureau, Regional Office No. 2, Tuguegarao, Philippines;(4) ITC, EB, Delft, The Netherlands |
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| Abstract: | The inherent problems of classifying or inventorying potential mineral resources (as opposed to known mineral resources) pose specific challenges. In this paper, the application of a conceptual mineral exploration model and GIS to generate mineral potential maps as input to land-use policy decision-making is illustrated. We implement the criteria provided by a conceptual exploration model for nickeliferous-laterites by using a GIS to classify the nickeliferous-laterite potential of an area in the northeastern part of the Philippines. The spatial data inputs to the GIS are geological map data, topographic map data, and stream sediment point data. Processing of these data yields derivative maps, which are used as indicators of nickeliferous-laterite potential. The indicator maps then are integrated to furnish a nickeliferous-laterite potential map. This map is compared with present land-use classification and policy in the area. The results indicate high potential for nickeliferous-laterite occurrence in the area, but the zones of potential are in places where mineral resources development is prohibited. The prohibition was imposed before the nickeliferous-laterite potential was assessed by this study. Mineral potential classification therefore is a critical input to land-use policy-making so that prospective land is not alienated from future mineral resource development. |
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| Keywords: | Mineral potential classification nickeliferous-laterites spatial data integration land use policy-making |
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