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Paleoclimatology (thesaurus)

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grainstone  

Definition

  • Under the Dunham classification (Dunham, 1962) system of limestones, a grainstone is defined as a grain-supported carbonate rock that contains less than 1% mud-grade material. This definition has recently been clarified as a carbonate-dominated rock that does not contain any carbonate mud and where less than 10% of the components are larger than 2 mm. The spaces between grains may be empty (pores) or filled by cement. (Adapted from: https://en.wikipedia.org/wiki/Grainstone)

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http://data.loterre.fr/ark:/67375/QX8-T4FM70JR-H

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