Dolomite ( Dol-/2/? )
 5x
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 5x cross nicol
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 5x wave plate
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 10x wave plate
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| Outstanding feature | Crystalline dolomite mozaic replaces pelloids and calcite |
| Folk Classification | Dolomitized Pelsparite or Oosparite |
| Dunham Classification | Dolomitized Pelgrainstone or Oograinstone |
| Common Grains | Pelloids or Ooids with sparse anhydite lathes |
| Sorting | well sorted |
| Rounding | well rounded |
| Micritization & envelopes | Grains are peloids or ooids and micrite envelopes |
| Cement & diagenetic fabric | Complete replacement of pelloids and calcite by dolomite |
| Porosity | 1-35% Intercrystalline |
| Depositional Setting | High energy shoal |
| Diagenetic history | Complete dolomitization of pelloids &/or ooids & cement |
Striking replacement of either pelloids or ooids and micrite envelopes by mozaic of clear equant authogenic dolomite. Note sparse anhydrite lathes.
Thursday, November 11, 2021