Microscopic

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, August 15, 2019
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