TrekGEO > Mineral Trail > Occurrence > Asphalt

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Biological Process



Required Geological Setting

Neogene and Quaternary sediments, Paleogene and older sediments


The most viscous variety of petroleum. Asphalt is oberved as very sticky liquid to solid black material in strata producing petroleum. It fomed by evaporation of most volatile components in petroleum in strata or on the ground surface. Asphalt may occur as lakes on the ground surface or a matrix of sedimentary rocks such as sandstone.

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