Tectogenesis and metamorphism of the Piedmont from Columbia to Westview, Virginia along the James River
During Late Precambrian or Early Cambrian (~550 m.y.) a sequence of interlayered graywackes and shales was intruded by the Columbia granite. At approximately 340 m.y. the granite and sediments were metamorphosed to at least amphibolite facies. During the peak and waning stages of metamorphism, these...
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Virginia Tech
2014
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Online Access: | http://hdl.handle.net/10919/43733 http://scholar.lib.vt.edu/theses/available/etd-07152010-020125/ |