Skeletal - Halimeda, Molluscs & Corals (B/21/Ple/Eni)
 2.5x
|
 5x
|
 5x wave plate
|
 5x
|
 5x wave plate
|
 10x wave plate
|
| Outstanding feature |
Very porous rock undergoing early marine cementation |
| Folk Classification |
Halimeda biosparite |
| Dunham Classification |
Halimeda packstone |
| Common Grains |
Halimeda, mollusks & foraminifera |
| Sorting |
Good |
| Rounding |
Well rounded |
| Micritization & envelopes |
Thin envelopes on some grains |
| Cement & diagenetic fabric |
Circumgranular aragonite cements |
| Porosity |
40% intergranular |
| Depositional Setting |
High energy portion of atoll reef |
| Diagenetic history |
Marine cementation |
Sample collected from 80ft in the XGK-7-3-80 well Eniwetok, Marshall Islands. Halimeda flakes that have undergone marine cementation on the margins of the atoll.
Thursday, November 11, 2021