Research
My research in structural geology and neotectonics investigates the evolution of deformation and the rates of mountain building processes. I examine the surface expression of active faults, the architecture of fault systems, and interactions between faults to understand seismic hazards for at-risk communities.
I employ a wide range of expertise including surface mapping, subsurface visualization, geomorphology, topographic analysis, and isotope geochemistry to quantify deformation rates.
Western Nepal
My collaborators and I are investigating active structures in the High Himalaya of West Nepal. We were some of the first geologist to visit remote, high-elevation regions and document surface evidence of fault slip on structures within the Western Nepal Fault System, a right-slip system in the upper plate of the Indo-Asian collision. Thus far, I have produced neotectonic maps of 15 distinct sites, processed 29 geochronology samples, and calculated Quaternary fault slip rates at 10 locations.
A. Hoxey, et al.; Quaternary offsets and slip rates along the Western Nepal Fault System as evidence for active orogen-oblique deformation. Abstract volume 35th Himalaya-Karakorum-Tibet Workshop (2022)
Walker Lane Belt
I have worked on structural and neotectonic studies that utilize volcanic and geomorphic strain markers to estimate fault initiation ages, kinematics, and slip rates on right-lateral structures in the Walker Lane Belt.
D. Mongovin, M. Taylor, S. Bemis, A. Hoxey, C. Campbell; Strike-Slip Faulting in the Cascadia Backarc: Documentation of Dextral Activity on the Tumalo Fault, Sisters Fault Zone, Central Oregon, USA. AGU Fall Meeting Abstracts (2021)
J. Lee, A. Hoxey, A. Calvert, and P. Dubyoski; Plate boundary trench retreat and dextral shear drive intracontinental fault-slip histories: Neogene dextral faulting across the Gabbs Valley and Gillis Ranges, Central Walker Lane, Nevada. Geosphere (2020)
A. Hoxey, J. Lee, and A. Calvert; Geologic map of the Petrified Spring fault, Gabbs Valley Range, Mineral County, Nevada. NBMG Open-File Report (2020)