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Economic geology is concerned with earth materials that can be used for economic and/or industrial purposes. These materials include precious and base metals, nonmetallic minerals, construction-grade stone, petroleum minerals, coal, and water. The term commonly refers to metallic mineral deposits and mineral resources. The techniques employed by other earth science disciplines (such as geochemistry, mineralogy, geophysics, petrology and structural geology) might all be used to understand, describe, and exploit an ore deposit. Economic geology is studied and practiced by geologists. However it is of prime interest to investment bankers, stock analysts and other professions such as engineers, environmental scientists, and conservationists because of the far-reaching impact that extractive industries have on society, the economy, and the environment. == Purpose of studies == The purpose of studies of the subject is as follows: # The subject ''Economic geology'' is aimed to provide detailed description of economic minerals which may be a little more than 200 in number. Beside the detailed description of these minerals the subject also discusses the proper uses and development of the mineral deposit. the foremost duty of economic geologist is to suggest the suitability of a mineral in the deposit for a particular industry. # The reserve of economic mineral in a deposit are limited & their percentages are also variable, which are not replenishable. Once they are extracted fully from a deposit, their reserves are exhausted for ever. this facts require to borne in mind while mining a deposit. A wise Economic Geologist prepare a plan of the mineral deposit for the proper utilization before its extraction. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「economic geology」の詳細全文を読む スポンサード リンク
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