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Economic Geology




Economic geology is studied by and practised 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 which extractive industries have upon society, the economy and the environment.


Mineral resources

:''See main article: Mineral Resource Classification

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

  • ''mineral occurrences'' or prospects which are of geological interest but may not be economic interest

  • ''mineral resources'', include those which are potentially economically and technically feasible, and those which are not

  • ''ore reserves'', must be economically and technically feasible to extract



Ore geology

See 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 which form and concentrate ore minerals into economically viable quantities.

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.

Ore deposits are delineated by Mineral Exploration , which utilises Geochemistry prospecting, Drilling and resource esimation via Geostatistics to quantify economic ore bodies. The ultimate aim of this process is Mining .


Coal and petroleum geology

:''See main articles Coal and Coal Geology

The study of Sedimentology is of prime importance to the delineation of economic reserves of Petroleum and Coal energy resources.


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