Abstract

Two distinctive barite occurrences in Cocke County, Tennessee. Early workers assumed that deformational fabrics observed in the vein minerals were relicts of the metamorphosed sediments which host the deposits. Fabrics were observed in both the Moccasin Gap- and Williams-type veins. Based on the progressive sequence of deformation fabrics observed in the vein minerals, it is concluded that mineralization was definitely not postdeformation as originally contended. Ore fabrics were produced in response to deformation of the vein minerals and not by the replacement of previously sheared host rock. It is hypothesized that shear zones provided access for late-stage, fluorine-rich solutions from which the fluorites of the Williams-type veins were deposited.--Modified journal abstract.

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