Dolomite ( Dol-/3/Jur/Ala )
 2.5x
|
 5x
|
 10x
|
 2.5x
|
 5x
|
 5x wave plate
|
 10x wave plate
|
| Outstanding feature | Finely crystalline dolomite mozaic |
| Folk Classification | Dolomitized pelmicrite |
| Dunham Classification | Dolomitized pellet packstone |
| Common Grains | Ghosts of pellets and dolomite rhombs |
| Sorting | Moderately sorted pellets |
| Rounding | Rounded pellets |
| Micritization & envelopes | Abundant, obscured by dolomitization |
| Cement & diagenetic fabric | Replacement of original fabric by dolomite |
| Porosity | 7-10% Interparticle |
| Depositional Setting | Low energy lagoon or tidal flat |
| Diagenetic history | Complete dolomitization of original fabric |
Ghosts of pellets with a well developed interparticle porosity.
Thursday, November 11, 2021