A5043454845- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- Geological Modeling and Analysis
- Botany and Geology in Latin America and Caribbean
- Rock Mechanics and Modeling
- Hydraulic Fracturing and Reservoir Analysis
- Seismology and Earthquake Studies
- Drilling and Well Engineering
- Landslides and related hazards
- Hydrocarbon exploration and reservoir analysis
- Marine and fisheries research
- Mining Techniques and Economics
- Geological formations and processes
University of Arizona
2022-2025
Utah Geological Survey
2023-2025
Western North America is the archetypical Cordilleran orogenic system that preserves a Mesozoic to Cenozoic record of oceanic Farallon plate subduction-related processes. After prolonged Late Jurassic through mid-Cretaceous normal-angle subduction produced western American batholith belt and retroarc fold-thrust belt, period low-angle, flat-slab during Cretaceous−Paleogene time caused upper deformation migrate eastward in form Laramide basement-involved uplifts, which partitioned original...
Abstract Mesozoic‐Cenozoic subduction of the Farallon slab beneath North America generated a regionally extensive orogenic plateau in southwestern US during latest Cretaceous, similar to modern Central Andean Plateau. In Nevada and southern Arizona, estimates from whole‐rock geochemistry suggest crustal thicknesses reached ∼60–55 km by Late Cretaceous. Modern are ∼28 km, requiring significant Cenozoic thinning. Here, we compare detailed low‐temperature thermochronology Catalina metamorphic...
ABSTRACT: We present a geomechanical analysis of stress and fracture development in the rock mass adjacent to salt body under tectonic loading. This is accomplished with 3D elastic dislocation modeling evaluate conditions wall Paradox Basin, southern Utah, USA. Detailed field work has documented indicative strain patterns an exhumed that suggest rotation principal stresses decrease differential magnitude proximity relative regional conditions. A model area was constructed solve for...
<p>This material constitutes a detailed fault-by-fault narrative based on our comprehensive examination of published geologic maps and own field observations. It includes minimaps for each the transverse faults fault zones. Descriptive details are presented in common order fault: general location, primary map reference, nature faulting, structural association(s), evidence fault-related channeling fluid flow, timing constraints.</p>
<p>This material constitutes a detailed fault-by-fault narrative based on our comprehensive examination of published geologic maps and own field observations. It includes minimaps for each the transverse faults fault zones. Descriptive details are presented in common order fault: general location, primary map reference, nature faulting, structural association(s), evidence fault-related channeling fluid flow, timing constraints.</p>
<p>This material constitutes a detailed fault-by-fault narrative based on our comprehensive examination of published geologic maps and own field observations. It includes minimaps for each the transverse faults fault zones. Descriptive details are presented in common order fault: general location, primary map reference, nature faulting, structural association(s), evidence fault-related channeling fluid flow, timing constraints.</p>
The Paradox Basin (Colorado Plateau, USA) is dominated by major, first-order northwest-trending structures commonly 40 km or more in trace length, including (1) regional salt wall corridors related to passive diapirism during Pennsylvanian Jurassic time, (2) gentle upright folds produced Laramide shortening the Late Cretaceous through early Cenozoic, (3) late normal faults, and (4) faults representing Neogene dissolution collapse. Less obvious at a scale are fault zones aligned perpendicular...
Interpretation of the late Cretaceous to Eocene Laramide tectonic evolution Colorado Plateau is hampered by difficulty placing precise temporal constraints on fault-induced basement uplift, for there a paucity exposed from which thermochronologic ages might be obtained. The Defiance and Zuni uplifts, located southeasternmost Plateau, offer rare exposure that provide additional insights. uplift exposes abundant Precambrian rock, has been subject previous apatite study interpret...