This $195,997 Project Grant awarded by the National Science Foundation's Geosciences program (CFDA 47.050) to Brown University will support collaborative research on understanding nitrogen cycling in subduction zones. The project aims to provide new constraints on the distribution and behavior of nitrogen as it is subducted into the Earth's mantle and then potentially returned to the surface through volcanic activity. Key planned activities include measuring nitrogen composition in subduction...
This $387,090 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) will enable researchers at Arizona State University to explore nitrogen cycling processes in deep-sea hydrothermal vent ecosystems. The team will conduct specialized high-pressure experiments to measure rates of nitrogen loss, recycling, and microbial assimilation across redox gradients at distinct seafloor vent habitats. By leveraging recent institutional partnerships, the project will...
This $185,953 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports collaborative research to leverage isotopic compositions of igneous systems to resolve the geometry and distribution of subducted sediment in the southern U.S. Cordillera. The research, led by the University of Texas at El Paso, aims to determine the distribution and geometry of subducted sediment in the continental crust by using igneous rocks as "deep-crustal probes" to...
The National Science Foundation awarded a $305,251 Project Grant to the University of Arizona under the Geosciences program (CFDA 47.050) to conduct research examining metamorphic rocks from ancient subduction zones in the Baja California peninsula from September 1, 2022 to August 31, 2025. The research aims to quantify the pressure-temperature-time histories of amphibolite, blueschist, and eclogite rocks using advanced thermobarometry and petrochronology techniques to better understand the...
This $183,953 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports collaborative research to reconstruct melt compositions across Cordilleran arc segments. The research aims to evaluate petrologic proxies of crustal thickness and transcrustal differentiation processes. The project will collect data from four ancient arc segments in the western U.S. and create field research videos to showcase the findings and raise awareness about geoscience...
The National Science Foundation (NSF) Division of Earth Sciences awarded a 3-year, $347,913 Project Grant to Northern Arizona University (NAU) to investigate fluid infiltration of the continental crust during Laramide flat-slab subduction, an ancient tectonic setting. The research aims to improve mathematical simulations of similar modern tectonic settings that pose seismic risks to human populations. The project supports the participation of undergraduates and four early career PhDs, three of...
This $355,607 Project Grant award from the National Science Foundation (NSF) Division of Earth Sciences under the Geosciences program (CFDA 47.050) supports collaborative research to investigate an ancient example of flat-slab subduction in southern California and western Arizona. The goal is to collect data from rocks that were once located above the descending oceanic plate in order to improve simulations and understanding of similar modern tectonic settings, many of which pose significant...
This National Science Foundation (NSF) Geosciences Program (CFDA 47.050) Project Grant award totaling $567,283 provides funding to the University of Arizona (Arizona Board of Regents) from August 1, 2024 to July 31, 2027 to study the fate of subducted carbonate platforms in the Earth's sub-arc mantle. The key objectives are to: Obtain geochemical and isotopic data on subducted marbles to identify potential signatures in arc volcanic rocks, indicating the source of the subducted carbon. Conduct...
The National Science Foundation (NSF) Geosciences Program (CFDA 47.050) awarded a $303,170 project grant to The University Corporation, a non-profit organization affiliated with California State University, Northridge. The grant, awarded on September 1, 2024, supports a collaborative research project titled "Is it Mash or Mush? Testing Conflicting Models for Magma Diversification and Mobilization in Lower-Arc Crust." The project aims to investigate the processes that lead to the...
The University of Arizona was awarded a $125,320 Project Grant from the National Science Foundation Division of Earth Sciences on May 1, 2021 to complete work by November 30, 2021. The grant supports the collaborative research project "THE ZIRCONIUM ISOTOPE COMPOSITION AND VARIABILITY OF THE SILICATE EARTH -- A PILOT STUDY" under the NSF's Geosciences program (CFDA #47.050). This program aims to strengthen understanding of the integrated Earth system through basic research in...
This $193,980 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports a research project at the University of Arizona to evaluate the continental crust as a reservoir for Earth's nitrogen and constrain the nitrogen abundance of primitive arc magmas. The project will analyze rock samples from California and Arizona to determine the nitrogen content of the continental arc crust and perform experiments to understand the partitioning of nitrogen between lower crustal minerals and arc melts. Additionally, a summer camp for high school students from the Tucson Unified School District will integrate aspects of the research, with the goal of inspiring students to pursue geoscience careers and increasing diversity in the field. The award period is from February 1, 2025, to January 31, 2030.