Peloid ooid grainstone with a large ooid nucleated on an intraclast containing very fine particles of quartz sand. Two generations of calcite cement mostly fill interparticle pores. Blue epoxy fills relict and dissolution pores. Field of view 1 mm, calcite is stained red. Smackover Formation, South Alabama. Images of thin rock slice viewed with a microscope.
Another view with more dissolution porosity and calcite replacing dolomite rhombs (white crystals partly replaced by red). 2.5 mm wide.
Large intraclast containing multiple ooids, which is on top of numerous small ovoid pellets (partially dolomitized; partially dedolomitized). 2.5 mm.
View with two intraclasts centered on relict pore. 2.5 mm.
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