PhD in Geosciences - Mineral and Rock Physics in Stony Brook United States | Stony Brook University, SUNY

Studies in these disciplines concentrate on examining Earth's structure and composition, the geophysical characteristics of terrestrial materials, and the mechanical properties of the crust and mantle. A key focus involves analyzing high-pressure and high-temperature mineral phases and formations, especially those pertinent to the mantle. In situ assessments of elastic properties, compressibility, and crystal structure determination support investigations into high-pressure phase relationships, helping refine models of Earth's mantle and equations of state for mantle components. Current projects involve measuring ultrasonic wave speeds in minerals and evaluating mineral strength under mantle-like pressure and temperature conditions at depths exceeding 500 km. These research efforts align closely with the work of Stony Brook's Mineral Physics Institute and the NSF-sponsored COMPRES consortium. The Department of Geosciences and Mineral Physics Institute house specialized equipment for ultrasonic interferometry, Brillouin spectroscopy, and high-pressure/temperature multi-anvil experiments—all synchronized with NSLS synchrotron X-ray sources. Additional resources include comprehensive X-ray diffraction systems (both single-crystal and powder) along with transmission electron microscopy capabilities. Another significant research domain involves rock physics, fluid dynamics, and seismic mechanics. Combining experimental and theoretical approaches, this program investigates brittle fracture, porous rock compaction, strain patterns, frictional instabilities, and fluid-rock interactions. The rock mechanics lab features a triaxial press, acoustic emission monitoring systems, and permeameters.