Preliminary geology of the Proffit Mountain flood scour, Reynolds County, Missouri
Published:January 01, 2010
Cheryl M. Seeger, David J. Wronkiewicz, 2010. "Preliminary geology of the Proffit Mountain flood scour, Reynolds County, Missouri", From Precambrian Rift Volcanoes to the Mississippian Shelf Margins: Geological Field Excursions in the Ozark Mountains, Kevin R. Evans, James S. Aber
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The 2.4-km-long Proffit Mountain flood scour formed when the upper reservoir of the Taum Sauk Power Plant, a reversible pumped electric storage facility, failed on 14 December 2005. Approximately 1.3 billion gallons of water drained from the reservoir in roughly 12 minutes, scouring a small tributary on the west flank of Proffit Mountain to bedrock and depositing debris in the valley floor and in the valley of the East Fork of the Black River. The stratigraphic succession exposed includes Mesoproterozoic Taum Sauk Rhyolite and Munger Granite, Cambrian conglomerate and dolomite and flood deposits. The site provides a unique opportunity to study a landscape-scale outcrop.
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From Precambrian Rift Volcanoes to the Mississippian Shelf Margins: Geological Field Excursions in the Ozark Mountains
Despite a long history of geologic investigations in the Ozarks, new studies and analyses continue to elucidate our understanding of the complex interconnection between the basement, extensive carbonate platforms, structural overprinting, mineralization, karstification, and hydrology. This guidebook volume highlights a few of these aspects as well as the connection to culture, history, and economic development of the Ozarks region.