GRD02D7S0
W77-224
Grainstone
Unknown
None
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1
Ritter 154 › Cabinet 21 › Drawer H
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Phosphatic granular coarse-grained grainstone with well-rounded micrite clasts, phosphate clasts, and partially to completely quartz-replaced carbonate grains. Quartz is euhedral to subhedral where replacing micrite. Cement is mixture of quartz, phosphate, and dolomite. Very interesting petrogenesis. See also W77-226.
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France
France: Brost, Etretat, Fontainebleau, Brianconnais, Le Cuchon. Italy: La Spezia Window, Bracco, Friulia. Yugoslavia: Na Skali (Plezzo).
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GRD02D7T0: Phosphatic granular coarse-grained grainstone with well-rounded micrite clasts, phosphate clasts, and partially to completely quartz-replaced carbonate grains. Quartz is euhedral to subhedral where replacing micrite. Cement is mixture of quartz, phosphate, and dolomite. Very interesting petrogenesis. (R. Norris)
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