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Clay Mineral Segregation by Flocculation in the Porters Creek Formation
Clays and clay minerals
The Porters Creek Formation is mined as an absorbent clay in Illinois, Mississippi, Missouri, and Tennessee. The absorptive properties of the Porters Creek Formation are due to the high content of smectite which constitutes > 50% of the minerals present. Analyses of 220 samples of the Porters Creek collected in Illinois, Missouri, and Tennessee indicate that the smectite content is highest on the western side of the Mississippi embayment and that the kaolinite content is highest on thedoi:10.1346/ccmn.1989.0370210 fatcat:ca7zuddsk5erfhfen2mia42vti