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Economic geology

Economic geology is concerned with earth materials that can be used for economic and industrial purposes. These materials include precious and base metals, nonmetallic minerals and construction-grade stone. Economic geology is a subdiscipline of the geosciences; according to Lindgren (1933) it is “the application of geology”. It may be called the scientific study of the Earth's sources of mineral raw materials and the practical application of the acquired knowledge.[1]

An open pit uranium mine in Namibia

The study is primarily focused on metallic mineral deposits and mineral resources. The techniques employed by other earth science disciplines (such as geochemistry, mineralogy, geophysics, petrology, paleontology and structural geology) might all be used to understand, describe and exploit an ore deposit.

Economic geology is studied and practiced by geologists. Economic geology may be of interest to 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 study Edit

The purpose of the study of economic geology is to gain understanding of the genesis and localization of ore deposits plus the minerals associated with ore deposits.[2] Though metals, minerals and other geologic commodities are non-renewable in human time frames, the impression of a fixed or limited stock paradigm of scarcity has always led to human innovation resulting in a replacement commodity substituted for those commodities which become too expensive. Additionally the fixed stock of most mineral commodities is huge (e.g., copper within the earth's crust given current rates of consumption would last for more than 100 million years.)[3] Nonetheless, economic geologists continue to successfully expand and define known mineral resources.[citation needed]

Mineral resources Edit

Mineral resources are concentrations of minerals significant for current and future societal needs. Ore is classified as mineralization economically and technically feasible for extraction. Not all mineralization meets these criteria for various reasons. The specific categories of mineralization in an economic sense are:

  • Mineral occurrences or prospects of geological interest but not necessarily economic interest[citation needed]
  • Mineral resources include those potentially economically and technically feasible and those that are not[citation needed]
  • Ore reserves, which must be economically and technically feasible to extract[citation needed]

Ore Edit

 
Citrobacter species can have concentrations of uranium in their bodies 300 times higher than in the surrounding environment.

Geologists are involved in the study of ore deposits, which includes the study of ore genesis and the processes within the Earth's crust that form and concentrate ore minerals into economically viable quantities.[citation needed]

Study of metallic ore deposits involves the use of structural geology, geochemistry, the study of metamorphism and its processes, as well as understanding metasomatism and other processes related to ore genesis.[citation needed]

Ore deposits are delineated by mineral exploration, which uses geochemical prospecting, drilling and resource estimation via geostatistics to quantify economic ore bodies. The ultimate aim of this process is mining.[citation needed]

Coal and petroleum Edit

 
Mud log in process, a common way to study the lithology when drilling oil wells.
See main articles Coal and Petroleum geology

The study of sedimentology is of prime importance to the delineation of economic reserves of petroleum and coal energy resources.[citation needed]

See also Edit

References Edit

  1. ^ Pohl W.L. (2020) Economic Geology, Principles and Practice: Metals, Minerals, Coal and Hydrocarbons – an Introduction to Formation and Sustainable Exploitation of Mineral Deposits. 2nd ed. 755 pp. 32 Colour Plates, 305 Figures, 32 Tables, 25 Boxes,  81 Equations. Schweizerbart Science Publishers, Stuttgart. www.schweizerbart.de/9783510654352 (Soft Cover)
  2. ^ J. M. Gilbert and C. F. Park, Jr., 2007, The Geology of Ore Deposits, 985 pages, Waveband Press, Long Grove, IL
  3. ^ J.E. Tilton, 2010, "Is Mineral Depletion a threat to sustainable mining?", Society of Economic Geologists Newsletter, No. 82
  • Lindgren, W., 1933. Mineral Deposits. 930 pp. McGraw-Hill, New York.
  • Dill, H.G., 2010. The “chessboard” classification scheme of mineral deposits: Mineralogy and geology from aluminum to zirconium. Earth-Science Reviews Volume 100, pp. 1–420, 2010

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Economic Geology redirects here For the journal see Economic Geology journal Economic geology is concerned with earth materials that can be used for economic and industrial purposes These materials include precious and base metals nonmetallic minerals and construction grade stone Economic geology is a subdiscipline of the geosciences according to Lindgren 1933 it is the application of geology It may be called the scientific study of the Earth s sources of mineral raw materials and the practical application of the acquired knowledge 1 An open pit uranium mine in NamibiaThe study is primarily focused on metallic mineral deposits and mineral resources The techniques employed by other earth science disciplines such as geochemistry mineralogy geophysics petrology paleontology and structural geology might all be used to understand describe and exploit an ore deposit Economic geology is studied and practiced by geologists Economic geology may be of interest to 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 Contents 1 Purpose of study 2 Mineral resources 3 Ore 4 Coal and petroleum 5 See also 6 ReferencesPurpose of study EditThe purpose of the study of economic geology is to gain understanding of the genesis and localization of ore deposits plus the minerals associated with ore deposits 2 Though metals minerals and other geologic commodities are non renewable in human time frames the impression of a fixed or limited stock paradigm of scarcity has always led to human innovation resulting in a replacement commodity substituted for those commodities which become too expensive Additionally the fixed stock of most mineral commodities is huge e g copper within the earth s crust given current rates of consumption would last for more than 100 million years 3 Nonetheless economic geologists continue to successfully expand and define known mineral resources citation needed Mineral resources EditMain article Mineral resource classification Mineral resources are concentrations of minerals significant for current and future societal needs Ore is classified as mineralization economically and technically feasible for extraction Not all mineralization meets these criteria for various reasons The specific categories of mineralization in an economic sense are Mineral occurrences or prospects of geological interest but not necessarily economic interest citation needed Mineral resources include those potentially economically and technically feasible and those that are not citation needed Ore reserves which must be economically and technically feasible to extract citation needed Ore Edit nbsp Citrobacter species can have concentrations of uranium in their bodies 300 times higher than in the surrounding environment Main article Ore genesis Geologists are involved in the study of ore deposits which includes the study of ore genesis and the processes within the Earth s crust that form and concentrate ore minerals into economically viable quantities citation needed Study of metallic ore deposits involves the use of structural geology geochemistry the study of metamorphism and its processes as well as understanding metasomatism and other processes related to ore genesis citation needed Ore deposits are delineated by mineral exploration which uses geochemical prospecting drilling and resource estimation via geostatistics to quantify economic ore bodies The ultimate aim of this process is mining citation needed Coal and petroleum Edit nbsp Mud log in process a common way to study the lithology when drilling oil wells See main articles Coal and Petroleum geologyThe study of sedimentology is of prime importance to the delineation of economic reserves of petroleum and coal energy resources citation needed See also EditImportant publications in economic geology Mineral economics Mineral resource classification Ore Ore genesis Coal Valuation finance Valuation of mining projects nbsp Geology portalReferences Edit Pohl W L 2020 Economic Geology Principles and Practice Metals Minerals Coal and Hydrocarbons an Introduction to Formation and Sustainable Exploitation of Mineral Deposits 2nd ed 755 pp 32 Colour Plates 305 Figures 32 Tables 25 Boxes 81 Equations Schweizerbart Science Publishers Stuttgart www schweizerbart de 9783510654352 Soft Cover J M Gilbert and C F Park Jr 2007 The Geology of Ore Deposits 985 pages Waveband Press Long Grove IL J E Tilton 2010 Is Mineral Depletion a threat to sustainable mining Society of Economic Geologists Newsletter No 82 Lindgren W 1933 Mineral Deposits 930 pp McGraw Hill New York U S Geological Survey Circular 831 Principles of a Resource Reserve Classification for Minerals PDF format Dill H G 2010 The chessboard classification scheme of mineral deposits Mineralogy and geology from aluminum to zirconium Earth Science Reviews Volume 100 pp 1 420 2010 Retrieved from https en wikipedia org w index php title Economic geology amp oldid 1174109144, wikipedia, wiki, book, books, library,

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