Skeletal - Coral Debris and Micrite (B/10/Ple/Eni)

Outstanding feature Coral debris, micritized grains & spar
Folk Classification Poorly coral washed biosparite
Dunham Classification Coral packstone
Common Grains Coral fragments, forams & micritized grains
Sorting Poor
Rounding Some
Micritization & envelopes Skeletal grains being micritized
Cement & diagenetic fabric Irregular equant spar & micrite
Porosity Interparticle 30%
Depositional Setting Atoll frame
Diagenetic history Possible freshwater spar infilling interparticle porosity

Well drilled to 116 ft on the margin of the Eniwetok Atoll, in the Marshall Islands. Note the early diagenesis of this bioclastic carbonate!

Thursday, November 11, 2021
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