This five-year, $252,329 National Science Foundation project grant funds research towards developing a new framework for interpreting mantle deformation. The grantee, the University of California Santa Barbara under the NSF's Geosciences program (CFDA 47.050), will integrate theory, experiments, and observations spanning seismic to convective timescales. Researchers will characterize frequency-dependent upper-mantle dissipation in three locations using seismic and geodetic observations....
This five-year, $283,849 National Science Foundation Project Grant under the Geosciences program (CFDA 47.050) will fund research at Brown University to develop a new framework for interpreting mantle deformation through an integrated approach combining theory, experiments, and observations across seismic to convective timescales. Key products include observational work characterizing frequency-dependent upper-mantle dissipation in three locations using seismic and geodetic data; experimental...
The National Science Foundation awarded a $368,201 Project Grant to the Regents of the University of Minnesota under the Geosciences program (CFDA 47.050) to conduct collaborative research towards developing a new framework for interpreting mantle deformation. Over the five-year period from September 2022 to August 2027, key products and services will include integrating observational, experimental, and modeling efforts to characterize the full-spectrum rheological response of Earth's mantle and...
This National Science Foundation Project Grant of $290,439 supports research at Brown University from November 1, 2022 to August 31, 2027 under the Geosciences program (CFDA 47.050). The award will fund collaborative research integrating observational, experimental, and modeling efforts to characterize the full-spectrum rheological response of Earth's mantle and illuminate underlying microphysical processes controlling viscoelasticity. Observational work will characterize frequency-dependent...
The National Science Foundation Division of Earth Sciences awarded the University of Illinois a $127,723 Project Grant under the Geosciences federal grant program (CFDA 47.050) to conduct collaborative research on interpreting mantle deformation from September 2022 through August 2027. The University will integrate theory, experiments, and observations spanning seismic to convective timescales to better understand the Earth's mantle rheological response and the underlying microphysical processes...
This $367,031 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports collaborative research at Columbia University on understanding the dynamics of frictional interfaces, such as those found in earthquake faults and ice sheet systems. The project aims to directly observe the nucleation, slip, and stability of these frictional interfaces using advanced imaging and acoustic methods, with a focus on how the evolution of microscopic contacts controls...
This $140,967 two-year Project Grant from the National Science Foundation's Geosciences program (CFDA 47.050) will fund research to reevaluate the experimental foundation for rheology models of crust-forming minerals. Principal Investigator Jianbao Korenaga of Yale University will apply statistical methods to obtain new flow laws from existing deformation data for a range of minerals. Undergraduate students will conduct this reanalysis, gaining valuable research experience. The new flow laws...
This $732,120 Project Grant from the National Science Foundation Division of Earth Sciences will fund research into the effects of three-dimensional and non-Newtonian mantle viscosity on relative sea-level changes and deglaciation history since the Last Glacial Maximum approximately 26,000 years ago. The University of Colorado will deliver three key products under this award. First, the research team will further develop their open-source computational modeling package CITCOMSVE to more...
The National Science Foundation (NSF) Division of Earth Sciences awarded a $307,797 Project Grant to Yale University to conduct experimental research on the mechanical properties of the mineral olivine under deep upper mantle conditions. The goal is to improve understanding of transient creep, plastic anisotropy, and the role of grain-boundary sliding in olivine, which are critical factors governing Earth's mantle dynamics and processes like post-glacial rebound. The 3-year project will...
This National Science Foundation (NSF) Division of Earth Sciences Project Grant awarded to the Planetary Science Institute will conduct collaborative research to study the deformation behavior and rheology of subduction zone rocks. The $169,023 award, made under NSF's Geosciences (CFDA 47.050) program, will address two key questions: 1) how the heterogeneous rheology along subduction megathrusts affects fault slip behavior, and 2) how inelastic deformation on- and off-fault impacts strain energy...