Abstract
Sandstones and mudstones of the House-Seale deposit, Live Oak County, Texas, contain up to 8,000 ppm uranium as U3O8; however, no uranium minerals have been detected in the ore. Autoradiography of slabbed rocks and thin sections show that uranium is inhomogeneously distributed throughout the ore on both a macroscopic and microscopic scale. Thin-section petrography, scanning electron microscopy, and electron microprobe examination of these enriched regions proves that uranium is associated with platy, layered grain-coating material and clayey matrix between grains. Selective dissolution analysis indicates that 61 to 64% of total uranium is held on ion exchange sites and 36 to 39% is associated with amorphous aluminosilicate material. No significant ur nium concentrations are found in amorphous iron or manganese oxides or hydroxides, nor is uranium present in other minerals. End_of_Article - Last_Page 1677------------
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