This National Science Foundation (NSF) Geosciences Program (CFDA 47.050) Project Grant award of $358,605 will fund research by Trustees of Boston College to investigate the material properties and slip behavior of oceanic transform faults. The project aims to elucidate the links between field-scale observations and laboratory-derived rock properties to better understand the underlying controls on aseismic versus seismic slip behaviors in these fault systems. Key activities will include analyzing crustal and upper mantle lithologies dredged from the slow-slipping Chain Transform Fault and the fast-slipping Gofar Transform Fault. The research will characterize the petrophysical, elastic, and compositional properties of these fault zone materials, including the role of hydrothermal alteration and fluids, to provide insight into how strain is accommodated. The project will also train an early career scientist and conduct outreach through a virtual course on marine geology and geophysics. This award supports NSF's mission to advance fundamental scientific knowledge and address pressing societal challenges related to natural hazards and Earth systems dynamics.
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