Outstanding feature | Chert replaces oids, bioclastic grains & micrite and spar cement |
Folk Classification | Chertified ooid & brachiopod biosparite |
Dunham Classification | Chertified ooid brachiopod grainstone |
Common Grains | Ooids, brachiopods, intraclasts & micrite envelopes |
Sorting | Well sorted |
Rounding | Well rounded |
Micritization & envelopes | Micrite envelopes present |
Cement & diagenetic fabric | Almost complete replacement by chert |
Porosity | No porosity |
Depositional Setting | High energy shoal |
Diagenetic history | Chertification of ooids, skeleletal grains and sparite cement |
Replacement of ooids, skeletal and spar cement by chert.