Micrite Matrix with Spicules, Ostracods & Calcispheres (Mic/4/?)
 2.5x cross nicols
|
 5x
|
 5x cross nicols
|
 10x
|
 10x cross nicols
|
 2.5x
|
| Outstanding feature |
Calcispheres, spicules and ostracods in micrite |
| Folk Classification |
Spicular biomicrite |
| Dunham Classification |
Bioclastic wackestone |
| Common Grains |
Calcispheres, spicules and ostracods |
| Sorting |
Very poor |
| Rounding |
Little |
| Micritization & envelopes |
Alteration of bioclasts |
| Cement & diagenetic fabric |
Micrite |
| Porosity |
None |
| Depositional Setting |
Low energy proteced area |
| Diagenetic history |
Micrite cementation |
This fabric is typical micrite, from a deeper setting that is collecting spongue spicules, ostracods and calcispheres.
Thursday, November 11, 2021