Geologic provinces of the world (USGS)

A geologic province is a spatial entity with common geologic attributes.[1] A province may include a single dominant structural element such as a basin or a fold belt, or a number of contiguous related elements. Adjoining provinces may be similar in structure but be considered separate due to differing histories.

Geologic provinces by origin

ProvinceDefinitionSubcategoriesExamples
ShieldExposed Precambrian crystalline igneous and metamorphic rocks that form tectonically stable areas
PlatformHorizontal or gently-lying sedimentary strata covering a basement of igneous or metamorphic rocks
OrogenLinear or arc-shaped formation where continental crust has been folded, deformed and uplifted to form mountain ranges
BasinLow-lying formation of rock strata formed by tectonic warping of previously horizontal strata
Large igneous provinceAccumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive)
Extended crustContinental crust thinned due to extensional strain

Geologic provinces by resources

US coal regions and provinces.

Some studies classify provinces based upon mineral resources, such as mineral deposits. There are a particularly large number of provinces identified worldwide for petroleum and other mineral fuels, such as the Niger Delta petroleum province.

See also

References

  1. "Geologic Province and Thermo-Tectonic Age Maps". Earthquake Hazards Program. United States Geological Survey. Archived from the original on 7 June 2014. Retrieved 6 June 2014.
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