Dolomite - Intercrystalline Porosity ( Dol-/11/Olig/Iran )
 2.5x
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 2.5x wave plate
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 5x
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 10x
|
 5x
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 5x cross nicols
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 10x cross nicols
|
 10x
|
 10x cross nicols
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| Outstanding feature | Crystalline & micritic dolomite mozaic |
| Folk Classification | Dolomite rhomb & micritic mozaic |
| Dunham Classification | Dolomite rhomb & mud sized mozaic |
| Common Grains | Dolomite rhombs and mcrite sized xstals |
| Sorting | Bimodal crystal size |
| Rounding | Angular rhombs & micritic dolomite |
| Micritization & envelopes | None |
| Cement & diagenetic fabric | Complete replacement of original fabric by dolomite |
| Porosity | 20% Intercrystalline |
| Depositional Setting | Unknown |
| Diagenetic history | Complete dolomitization of original fabric |
Striking equant rhombic and micrite sized crystals of authogenic dolomite. Note blue expoxy fill of porosity between the dolomite rhombs.
Thursday, November 11, 2021