Neomorphosed Carbonate (N/4/Pm/NMx)
 2.5x
|
 5x
|
 2.5 cross nicols
|
 2.5 wave plate
|
| Outstanding feature |
Calcite mozaic, micrite layers of algal layers and empty voids |
| Folk Classification |
Porous algal boundstone with calcite filled and empty cavities |
| Dunham Classification |
Porous algal boundstone with calcite filled and empty cavities |
| Common Grains |
Ivanovea algal plates |
| Sorting |
Not applicable |
| Rounding |
Not applicable |
| Micritization & envelopes |
Grains are peloids or ooids and micrite envelopes |
| Cement & diagenetic fabric |
Equant calcite spar filling cavities beneath algal plates |
| Porosity |
30% leached and unfilled cavities |
| Depositional Setting |
Moderate energy algal mound shoal |
| Diagenetic history |
Early calcite fill of cavites beneath algal plates |
Equant calcite mozaic filling voids beneath Ivanovia algal plates.
Thursday, November 11, 2021