This preliminary report describes the Medley district in Jeff Davis County, Texas, where kaolin deposits have been found and where rutile has recently been discovered. Baker (2) has already briefly described the Medley Ranch kaolin deposit, but so far nothing has been published on the rutile.
Bentonite was discovered in Houston County in 1940 by a staff member of the Bureau of Economic Geology. On correlation of the sections in which the bentonite was exposed, namely, at Hurricane Bayou and Alabama Ferry, it was found that, though these localities were some 20 miles apart, the two sections were almost identical. This led to the obvious conclusion that the shale member containing the bentonite was continuous throughout the intervening area.
Bleaching clay investigations in Gonzales County were made for the following reasons:
1. To collect data on the types of deposits and mode of deposition.
2. To direct attention to any new sites discovered.
3. To eliminate seemingly valueless areas.
A Mineral Resources Survey Project was conducted in Wilson County for the purpose of investigating occurrences of high alumina clays. Fifteen WPA laborers, under the supervision of the writer, were employed on the project. Since formations in the county are composed of relatively soft rocks (Gulf Coast Eocene), hand augering with 3-inch post augers was used to good advantage in searching for and outlining clay deposits.
The purpose of the project in Jasper County was to locate and map deposits of bentonite and fuller's earth, clays used extensively in the refining of petroleum and for rotary drilling muds. Bentonitic clays are also used in the manufacture of soaps, insecticides, cosmetics, polishes, adhesives, ceramic glazes, absorbents, and in road, roofing, and floor materials.