Abstract

The lithic arenite groundmass of a polymictic conglomerate is cemented by two types of low magnesium calcite cement. Micrite, generally as polyhedral blocks and rarely as platy crystals, forms narrow rims around floating quartz grains and rock fragments. Sparite forms a drusy mosaic infilling between the micrite rimmed grains and fragments. Both forms of calcite are thought to be inorganic, fresh water precipitates.

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