Grapestones Cemented by Micrite (Int/24/Pm/NMx)
 2.5x
|
 5x
|
 5x
|
 5x
|
 2.5 wave plate
|
 5x wave plate
|
| Outstanding feature |
Grapestones and pelloids in micrite matrex |
| Folk Classification |
Intramicrite |
| Dunham Classification |
Grapestone Wackestone |
| Common Grains |
Grapestones and pelloids with micrite matrez |
| Sorting |
Poorly sorted |
| Rounding |
Local rounding of grains |
| Micritization & envelopes |
Mcritization of grapestones and pelloids |
| Cement & diagenetic fabric |
Micrite cementing and replacing grains |
| Porosity |
1% in fractures and leached voids |
| Depositional Setting |
Low energy bank crest or lagoon |
| Diagenetic history |
Micrite compaction and then later cementation |
Striking replacement of grains by micrite. Low energy sink for potentially higher energy grains. looks like a lagoon setting to me!!
Thursday, November 11, 2021