Fluvial Response to Eocene Tectonism, the Bridger Formation, Southern Wind River Range, Wyoming
Published:January 01, 1987
Patricia E. Groll, James R. Steidtmann, 1987. "Fluvial Response to Eocene Tectonism, the Bridger Formation, Southern Wind River Range, Wyoming", Recent Developments in Fluvial Sedimentology, Frank G. Ethridge, Romeo M. Flores, Michael D. Harvey
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Depositional style of the middle Eocene Bridger Formation on the south flank of the Wind River Range, Wyoming, changed in response to volcanism to the north in the Absaroka volcanic field. Lower Bridger sediments were deposited in a fluvio-deltaic environment during the waning stage of Lake Gosiute. Channel lag sediments, trough crossbedding and well developed epsilon crossbed-ding indicate a high sinuosity (meandering) stream pattern. In contrast, upper Bridger sandy channels are simple to multistory ribbons composed dominantly of trough cross-strata. Tuffs and tuffaceous siltstones form channel fills and overbank deposits and constitute a major portion of the unit. Upper...
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Recent Developments in Fluvial Sedimentology
This volume brings together 36 of the manuscripts that were presented at the Third International Fluvial Sedimentology Conference hosted by Colorado State University in August, 1985. Fluvial systems and sedimentary rock sequences discussed range in age from Holocene to Precambrian and include many diverse areas. The principal objective of the volume was to document the recent developments in the application of facies analysis to the reconstruction of the architecture of fluvial systems. Reconstruction of architecture is an integral part of the overall process of basin analysis.