Microscopic

Grapestone & Peloids (Int/22/Ple/Berm)

10x
10x
5x
2.5x
5x
Outstanding feature Grapestones, pelloids, and micritized ooids
Folk Classification Poorly washed Peletted Grapestone Intrasparite
Dunham Classification Grapestone Grainstone to Packstone
Common Grains Grapestones, pelloids, and micritized ooids
Sorting Moderately sorted
Rounding Rounded
Micritization & envelopes Mcritization of grapestones, ooids and pelloids
Cement & diagenetic fabric Micrite cementing and replacing grains. Some spar cement.
Porosity 30% Interpartical
Depositional Setting Moderate energy shoal
Diagenetic history Marine cementation of sea floor to form hardgrounds.

Striking marine cementation and replacement of grains by micrite. Some pore spaces between grains filled by spar but most filled by blue stained epoxy. 


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