By Ralph E. Grim and Necip Güven (Eds.)
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Additional info for Bentonites: Geology, Mineralogy, Properties and Uses
Nat. , Div. Mines, Spec. , 64: 1-16. , 1962. Bt. John’s bentonite, Clarborne, Parish, Louisiana. La. Dep. , Geol. , Folio Ser. No. 2. , 1928. Preliminary report on bentonite in Mississippi. Miss. State Geol. , 22: 1 4 pp. E. , 1961. Montmorillonite: high temperature reaction and classification. Am. , 46: 1329-1369. , 1974. Lath-shaped units in fine-grained micas and smectites. , 22: 385-390. , 1939. Adsorptive clays of the Texas Gulf Coast. Am. , 24: 67-108. , 1939. Bentonite in Wyoming. Wy. Geol.
The S- and E-type lamellae of montmorillonite are occasionally observed. In the Hamon clay (sample 25), smectites make up about half of the sample. The rest consists of micas, quartz, feldspar, kaolinite, and cristobalite. Smectites occur mostIy in Cheto- and Santa-Rita-type aggregates. Other areas Clays thought to be bentonites have been reported elsewhere in the United States. Jordan and Adams (1962) have reported a bentonite from Delaware also from an Eocene formation. 38 In the Wrens area of Georgia, a bed of clay ranging up to 30 ft.
I7)01o(OH)*1 N . 3 4 Quartz, plagioclases, micas, and kaolinite are the common impurities in the above samples from Canada. 53 Electron-optical observations show that the smectites in a Manitoba bentonite (sample 39) consist mostly of Cheto-type aggregates and H-type particles. Smectite particles in sample 40 also from Manitoba occur mostly in (Wyoming-type) foliated aggregates. The S-type montmorillonite lamellae are occasionally found in both samples from Manitoba. In the “Pembina mountain clay”, sample 41, smectites consist mostly of Cheto-type mossy aggregates.
Bentonites: Geology, Mineralogy, Properties and Uses by Ralph E. Grim and Necip Güven (Eds.)