Foraminfera & Grapestones (Int/15/K/Tx)
 2.5x
|
 2.5x
|
 5x
|
 5x
|
 5x
|
 5x wave plate
|
| Outstanding feature |
Grapestones, pelloids, and micritized ooids |
| Folk Classification |
Intramicrite |
| Dunham Classification |
Grapestone Packstone |
| Common Grains |
Grapestones, pelloids, and micritized ooids |
| Sorting |
poorly sorted |
| Rounding |
Rounded |
| Micritization & envelopes |
Mcritization of grapestones, ooids and pelloids |
| Cement & diagenetic fabric |
Micrite cementing and replacing grains |
| Porosity |
30% Interpartical |
| Depositional Setting |
Moderate energy shoal |
| Diagenetic history |
Marine cementation of sea floor to form hardgrounds. |
Striking marine cementation and replacement of grains by micrite. Empty pore spaces between grains are now filled by blue stained epoxy.
Thursday, November 11, 2021