Grapestones Composed of Squished Peloids (Int/23/Pm)
 2.5x
|
 5x
|
 5x
|
 5x
|
 2.5 wave plate
|
| Outstanding feature |
Pellets & grapestones in micrite matrex |
| Folk Classification |
Intra-dismicrite |
| Dunham Classification |
Intraclastic wackestone |
| Common Grains |
Grapestone, peloids & fossil fragments |
| Sorting |
Poor |
| Rounding |
Poor to well rounded |
| Micritization & envelopes |
Intense micritization of grains |
| Cement & diagenetic fabric |
Micrite with equant in voids |
| Porosity |
Leached 1% |
| Depositional Setting |
Low energy shoal or lagoon |
| Diagenetic history |
Probable freshwater diagenesis with high Ca/Mg ratio |
Neat ghosts of grapestones in micrite matrex just back from the margin of the Capitan Reef (Bank edge)!!! Clacite spar stained with alizarin red.
Thursday, November 11, 2021