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Structural geology and contact metamorphism along the northwestern thermal aureole of the Laramie anorthosite complex, Central Laramie Mountains, Wyoming
(University of Missouri--Columbia, 2013)
geologic mapping, analysis of features and fabrics produced during the two Paleoproterozoic events (D2 and D3), and analysis of D2-D3 reorientation into the contact strain aureole of two late granitic components of the LAC, the Sybille intrusion (SI...
Structural analysis of basin margin laramide folding and fault reactivation in the south-central Wind River Basin, Schoettlin Mountain quadrangle, Fremont County, Wyoming
(University of Missouri--Columbia, 2010)
. Geologic mapping of the southernmost, up-plunge end of these basin-margin fold structures shows the region to be divided into two structurally distinct zones: a northern zone containing Sheep Mountain anticline (ShMA) and a southern zone containing...
Laramide stress conditions and deformation mechanisms during the formation of Hudson and Dallas Domes, Lander Quadrangle, Wind River Mountains, Lander, Wyoming
(University of Missouri--Columbia, 2008)
of the Wind River Mountains. The study involved geologic mapping of surface deformation, collecting and analyzing fault and fracture orientation data, and deducing the folds deformation geometry, folding mechanisms, and associated stresses. Mapping and well...
Mechanisms for the formation of spiraled inclusion trails in garnet porphyroblasts from the Precambrian core of the Laramie Mountains, southeastern Wyoming
(University of Missouri--Columbia, 2013)
Relationships between deformation fabrics and porphyroblasts have been used to evaluate the metamorphic and deformational histories of mountain belts. However, some porphyroblast-fabric relationships, such as those of ...
Late-stage N-S shortening and fold offset during Laramide deformation along the southeastern margin of the Wind River Mountains, Wyoming
(University of Missouri--Columbia, 2011)
in the northern and southern terminations of SMA. Results from geologic mapping and structural analysis of deformation features in the northern closure of SMA, balanced cross-sections, fracture analysis, and a 2-D seismic reflection and refraction experiment...
Analysis of quaternary faults and associated deformation of sedimentary basin fill : inner continental borderland of southern California
(University of Missouri--Columbia, 2012)
-penetration industry multi-channel seismic reflection data (MCS) as well as high resolution U.S. Geological Survey MCS, indicates that many of the offshore faults are more geometrically continuous than previously reported including Newport-Inglewood (NI)-San Mateo...
Late-stage Laramide reactivation of Precambrian structures : evidence for [about]N-S Laramide shortening along the southeastern margin of the Wind River Mountains, Wyoming
(University of Missouri--Columbia, 2012)
Deformation along the southeastern margin of the Wind River Mountains during the late stages of the Laramide orogeny is a result of local [about]N-S Laramide shortening, which is in contrast to the regional NE-SW shortening ...
Structural geology and tectonics of the paleoproterozoic rocks of the Mount Rushmore Quadangle, Black Hills, Souh Dakota
(University of Missouri--Columbia, 2006)
The Paleoproterozoic assembly of Laurentia occurred between ̃1.96 to 1.70 Ga, and continued with the accretion of island arc terranes until about 1.63 Ga. The Black Hills, South Dakota lie along the eastern margin of the ...
Laramide stress conditions and deformation mechanisms during the formation of Derby and Dallas Domes, Weiser Pass Quadrangle, Wind River Mountains, Wyoming
(University of Missouri--Columbia, 2007)
echelon alignment, includes Dallas Dome, Derby Dome, and Sheep Mountain anticline - referred to here as the DDS fold line. Geologic mapping and structural analysis of the DDS support a regional NE-SW shortening direction of 6̃0/240⁰. However, progressive...