Wackestone
![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Wackestone_PPL.jpg/220px-Wackestone_PPL.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/DunhamWackestone.jpg/220px-DunhamWackestone.jpg)
Under the Dunham classification (Dunham, 1962[1]) system of limestones, a wackestone is defined as a mud-supported carbonate rock that contains greater than 10% grains. Most recently, this definition has been clarified as a carbonate-dominated rock in which the carbonate mud (<63
The identification of wackestone
![](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Wackestone.svg/350px-Wackestone.svg.png)
A study of the adoption and use of carbonate classification systems by Lokier and Al Junaibi (2016)[2] highlighted that the most common problem encountered when describing a wackestone is to incorrectly estimate the volume of 'grains' in the sample – in consequence, misidentifying wackestone as mudstone or vice versa. The original Dunham classification (1962)[1] defined the matrix as clay and fine-silt size sediment <20
References
- ^ a b Dunham, R.J., 1962. Classification of carbonate rocks according to depositional texture. In: W.E. Ham (Ed.), Classification of Carbonate Rocks. American Association of Petroleum Geologists Memoir. American Association of Petroleum Geologists, Tulsa, Oklahoma, pp. 108–121.
- ^ a b Lokier, Stephen W.; Al Junaibi, Mariam (2016-12-01). "The petrographic description of carbonate facies: are we all speaking the same language?". Sedimentology. 63 (7): 1843–1885. doi:10.1111/sed.12293. ISSN 1365-3091.
- ^ Embry, A.F. and Klovan, J.E., 1971. A Late Devonian reef tract on Northeastern Banks Island, NWT. Bulletin of Canadian Petroleum Geology, 19(4)), 730–781.
- ^ Wright, V.P., 1992. A revised classification of limestones. Sedimentary Geology, 76(3–4), 177–185.
External links