USGS: Science Topics: metamorphism (geological)

Science Topics

Metamorphism (geological)

Process by which rocks are altered in composition and texture by extreme heat, high pressure, or the action of chemicals.

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Organic metamorphism in the California petroleum basins: Chapter A - ROCK-EVAL and vitrinite reflectance [New Window]: Part A of a complex report on the results of ROCK-EVAL and vitrinite reflectance analysis of a large sample base from more than 70 wells located in three oil-rich California petroleum basins in order to study the formation of oil deposits.
Organic metamorphism in the California petroleum basins: Chapter B - Insights from extractable bitumen and saturated hydrocarbons [New Window]: Part B of a complex report on the results of geochemical analysis of 75 shale samples from the Los Angeles, Ventura, and San Joaquin Basins to gather observations relevant to exploration regarding the formation of oil deposits in these basins.

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