Dolomite - Calcite Remnants - Dead Oil ( Dol-/8/Olig/Iran )
 2.5x
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 2.5x wave plate
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 5x
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 5x wave plate
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 10x
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 10x wave plate
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 5x
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 5x
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 2.5x
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 5x
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 5x wave plate
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| Outstanding feature | Crystalline dolomite mozaic, fossil remnants & intercrystalline porosity. Dead oil. |
| Folk Classification | Dolomitized biosparite |
| Dunham Classification | Dolomitized bioclastic packstone |
| Common Grains | Dolomite rhombs and fossil fragments |
| Sorting | Unknown, bimodal crystal size |
| Rounding | Fossils show rounding, angular rhombs |
| Micritization & envelopes | Some |
| Cement & diagenetic fabric | Almost complete replacement of original fabric by dolomite |
| Porosity | 15% Intercrystalline & dead oil in pores |
| Depositional Setting | Higher energy shoal |
| Diagenetic history | Dolomitization of bioclastic fabric |
Striking intercrystalline porosity (now filled by blue epoxy and dead oil) and fragments of original bioclastic grains.
Thursday, November 11, 2021