Figure A-22. Photomicrographs of thin-sections from core samples from Trenton Formation in Humble Anderson Whitaker No. 2, 29-7S-4W.

A. 3070 ft--Burrowed-mottled rock, with burrow (upper right) containing coarse dolomite. PPL.

B. 3070 ft--Minor amounts of intercrystalline porosity in completely dolomitized rock. Original texture probably was wackestone; of zoned dolomite is prevalent. PPL.

C. 3166 ft--Interlocking mosaic of dolomite; original texture probably was a packstone. Many of the rhombs are zoned. PPL.