Neomorphosed Carbonate (N/2/Pm/Eng)
 2.5x
|
 2.5x
|
 5x
|
 5x
|
 2.5 wave plate
|
 2.5 wave plate
|
 5x wave plate
|
 5x wave plate
|
| Outstanding feature |
Fine and medium grained equant calcite crystals replace micrite matrix |
| Folk Classification |
Sparse pelmicrite |
| Dunham Classification |
Sparse pellet packstone |
| Common Grains |
Ghosts of pellets but common calcite rhombs |
| Sorting |
Poorly sorted |
| Rounding |
Some indistinct rounding |
| Micritization & envelopes |
Grains are ghosts of peloids and micrite envelopes |
| Cement & diagenetic fabric |
Complete replacement of pelloids bimodal equant calcite |
| Porosity |
None |
| Depositional Setting |
Low energy shoal |
| Diagenetic history |
Recrystallized pelmicrite |
Striking recrystallization of micrite with bimodal grain growth mozaic. This is the grain growth or neomorphism of Folk.
Thursday, November 11, 2021