Geology Chapter 3.5 0.0 / 5 ? Geologyclassification of carbonate rocks A2/A-levelOCR Created by: abbbywCreated on: 29-12-17 15:46 Ooliths spherical grains showing concentric banding of carbonate material. These are less than 2mm in diameter, if larger = Pisoliths 1 of 6 Micrite a microcrystalline calcite, a depositional matrix of lime mud 2 of 6 Sparite a coarse grained (>0.01mm) crystalline calcite cement, formed after deposition 3 of 6 Cement the minerals precipitated between grains in sedimentary rocks binding them together 4 of 6 Pellets carbonate material excreted by animals. Lack concentric structures + are normally 0.04 - 0.08mm in diameter 5 of 6 Intraclasts grains formed by erosion of material within the basin of deposition 6 of 6
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