Figure F14. Photomicrographs of a thin section cut from a cobble of carbonate (Sample 205-1254A-14R-CC, 24 cm). A. Pelsparite limestone, which is a carbonate facies typically associated with deposits in shallow-shelf, relatively high energy marine conditions. B. Test of a bivalve surrounded by a micritic sandstone that has grains dominated by altered volcanic rock and quartz. C. Close-up of the sparry calcite cement found between the peloids of the limestones. Note the radiating fans associated with precipitation in a fully marine environment. D. A small gastropod within micritic sandstone.

Figure F14. Photomicrographs of a thin section cut from a cobble of carbonate (Sample 205-1254A-14R-CC, 24 cm). A. Pelsparite limestone, which is a carbonate facies typically associated with deposits in shallow-shelf, relatively high energy marine conditions. B. Test of a bivalve surrounded by a micritic sandstone that has grains dominated by altered volcanic rock and quartz. C. Close-up of the sparry calcite cement found between the peloids of the limestones. Note the radiating fans associated with precipitation in a fully marine environment. D. A small gastropod within micritic sandstone.