Grainstone

Grainstone

Under the Dunham classification, grainstones are grain-supported carbonate sedimentary rocks that contain no micrite. The spaces between grains are filled with sparry cement.

Reference

*Dunham, R. J., 1962, "Classification of carbonate rocks according to depositional texture", in Ham, W. E. ed., "Classification of carbonate rocks: American Association of Petroleum Geologists Memoir 1", p. 108-121.


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