2 THE EARTH AS WELL AS OTHER TERRESTRIAL PLANETS ARE SHAPED BY IMPACTS. LARGE IMPACTS EVENTS ACCOUNT FOR THE MAJORITY OF MASS ACCRETION DURING THE END STAGES OF TERRESTRIAL PLANET FORMATION. ALTHOUGH LARGE IMPACTS HAVE A MASSIVE BUDGET OF KINETIC ENERGY, THEY CANNOT ERASE THE GEOCHEMICAL SIGNATURES OF EARTH S ACCRETION, RECORDED IN THE DEEP MANTLE NOBLE GASES AND W ISOTOPE VARIATIONS. HOWEVER, WE DO NOT KNOW HOW MUCH MANTLE MELTING OCCURRED, HOW DEEP THIS MELT WAS, NOR WHERE PROJECTILE MATERIAL WAS DEPOSITED. UNDERSTANDING THE EXTENT OF IMPACT INDUCED MELTING IS DIFFICULT DUE TO THE LACK OF THERMODYNAMIC DATA ABOUT PLANETARY MINERALS. THE PRIMARY OBJECTIVE OF MY RESEARCH IS TO BUILD A ROBUST SET OF TOOLS THAT MORE ACCURATELY PREDICT THE OUTCOMES OF LARGE IMPACTS. CURRENTLY, THE STUDY OF GIANT IMPACTS IS LIMITED DUE TO THE LACK OF THERMODYNAMIC DATA ON MANTLE MINERALS SUCH AS OLIVINE, BRONZITE, AND BRIDGMANITE. FURTHERMORE, CURRENT MODELS OF THE EQUATION OF STATE OF THE MANTLE TYPICALLY ASSUME THAT THE MANTLE IS MADE OF PURE FORSTERITE. THIS ASSUMPTION PREVENTS ACCURATE PREDICTIONS OF MELTING DURING GIANT IMPACTS. THEREFORE, MY PROPOSED WORK WILL BE TO MAKE MEASUREMENTS OF IMPORTANT MANTLE MINERALS IN EXTREME CONDITIONS. TO MAKE MEASUREMENTS OF MANTLE MATERIALS, I WILL PERFORM SHOCK-AND-RELEASE EXPERIMENTS ON TWO EXPERIMENTAL PLATFORMS TO OBTAIN EQUATION OF STATE DATA. TO ACHIEVE CONDITIONS WITH PRESSURES OF UP TO ~200 GPA, I WILL USE THE 2-STAGE LIGHT GAS GUN IN PROF. STEWART S SHOCK COMPRESSION LABORATORY AT UC DAVIS. TO REACH THE HIGHEST PRESSURES OF PLANETARY IMPACT EVENTS, THE GROUP HAS PERFORMED EQUATION OF STATE (EOS) EXPERIMENTS IN THE SANDIA Z FUNDAMENTAL SCIENCE PROGRAM, AND MORE ARE PLANNED FOR 2016-2017. DATA TAKEN IN THESE EXPERIMENTS WILL BE COMBINED WITH AVAILABLE STATIC AND SHOCK EXPERIMENTAL DATA TO RECALCULATE THERMODYNAMIC PROPERTIES OF MANTLE MINERALS. MY PRIMARY GOAL HERE IS TO ASSEMBLE AN (MG,FE)SIO3 (BRONZITE-BRIDGMANITE) EQUATION OF STATE TABLE AND IMPROVE THE OLIVINE EQUATION OF STATE TABLE. USING THESE UPDATED EQUATION OF STATE MODELS, I WILL THEN WORK TO IMPROVE CTH. MY ADVISER IS DEVELOPING A NEW RHEOLOGICAL MODEL FOR ROCKS THAT SPANS THE LARGE PRESSURE-TEMPERATURE-STRAIN RATE SPACE OF PLANETARY IMPACT EVENTS. I WILL AID DEVELOPMENT OF THIS MODEL BY INCORPORATING ACCURATE MELTING CURVES, INCORPORATING NEWLY AVAILABLE RHEOLOGICAL MEASUREMENTS, AND BENCHMARKING THE CODE. THUS, MY WORK WILL IMPROVE THE OVERALL CAPABILITIES OF THE CTH CODE TO MODEL LARGE SCALE DEFORMATION EVENTS ON ROCKY PLANETS. WITH THE UPDATED CODE, I WILL CALCULATE THE AMOUNT OF MELTING AND VAPORIZATION DURING LARGE IMPACT EVENTS. THESE RESULTS WILL BE FITTED WITH SCALINGS LAWS THAT WILL BE APPLICABLE TO A WIDE RANGE OF PLANETARY PROBLEMS. I WILL SPECIFICALLY ADDRESS THE AMOUNT OF MELT DURING MOON FORMING IMPACTS AND DURING LATE ACCRETION ON THE EARTH. COMPLETION OF THE WORK DESCRIBED ABOVE SUPPORTS THE NESSF PLANETARY SCIENCE PROGRAM BECAUSE THIS WORK WILL DRIVE UNDERSTANDING HOW CHEMICAL AND PHYSICAL PROCESSES IN THE SOLAR SYSTEM OPERATE, INTERACT AND EVOLVE. Funding Only Action $45.0k 7/21/18 Not listed THE EARTH AS WELL AS OTHER TERRESTRIAL PLANETS ARE SHAPED BY IMPACTS. LARGE IMPACTS EVENTS ACCOUNT FOR THE MAJORITY OF MASS ACCRETION DURING THE END STAGES OF TERRESTRIAL PLANET FORMATION. ALTHOUGH LARGE IMPACTS HAVE A MASSIVE BUDGET OF KINETIC ENERGY THEY CANNOT ERASE THE GEOCHEMICAL SIGNATURES OF EARTH S ACCRETION RECORDED IN THE DEEP MANTLE NOBLE GASES AND W ISOTOPE VARIATIONS. HOWEVER WE DO NOT KNOW HOW MUCH MANTLE MELTING OCCURRED HOW DEEP THIS MELT WAS NOR WHERE PROJECTILE MATERIAL WAS DEPOSITED. UNDERSTANDING THE EXTENT OF IMPACT INDUCED MELTING IS DIFFICULT DUE TO THE LACK OF THERMODYNAMIC DATA ABOUT PLANETARY MINERALS. THE PRIMARY OBJECTIVE OF MY RESEARCH IS TO BUILD A ROBUST SET OF TOOLS THAT MORE ACCURATELY PREDICT THE OUTCOMES OF LARGE IMPACTS. CURRENTLY THE STUDY OF GIANT IMPACTS IS LIMITED DUE TO THE LACK OF THERMODYNAMIC DATA ON MANTLE MINERALS SUCH AS OLIVINE BRONZITE AND BRIDGMANITE. FURTHERMORE CURRENT MODELS OF THE EQUATION OF STATE OF THE MANTLE TYPICALLY ASSUME THAT THE MANTLE IS MADE OF PURE FORSTERITE. THIS ASSUMPTION PREVENTS ACCURATE PREDICTIONS OF MELTING DURING GIANT IMPACTS. THEREFORE MY PROPOSED WORK WILL BE TO MAKE MEASUREMENTS OF IMPORTANT MANTLE MINERALS IN EXTREME CONDITIONS. TO MAKE MEASUREMENTS OF MANTLE MATERIALS I WILL PERFORM SHOCK-AND-RELEASE EXPERIMENTS ON TWO EXPERIMENTAL PLATFORMS TO OBTAIN EQUATION OF STATE DATA. TO ACHIEVE CONDITIONS WITH PRESSURES OF UP TO ~200 GPA I WILL USE THE 2-STAGE LIGHT GAS GUN IN PROF. STEWART S SHOCK COMPRESSION LABORATORY AT UC DAVIS. TO REACH THE HIGHEST PRESSURES OF PLANETARY IMPACT EVENTS THE GROUP HAS PERFORMED EQUATION OF STATE (EOS) EXPERIMENTS IN THE SANDIA Z FUNDAMENTAL SCIENCE PROGRAM AND MORE ARE PLANNED FOR 2016-2017. DATA TAKEN IN THESE EXPERIMENTS WILL BE COMBINED WITH AVAILABLE STATIC AND SHOCK EXPERIMENTAL DATA TO RECALCULATE THERMODYNAMIC PROPERTIES OF MANTLE MINERALS. MY PRIMARY GOAL HERE IS TO ASSEMBLE AN (MG FE)SIO3 (BRONZITE-BRIDGMANITE) EQUATION OF STATE TABLE AND IMPROVE THE OLIVINE EQUATION OF STATE TABLE. USING THESE UPDATED EQUATION OF STATE MODELS I WILL THEN WORK TO IMPROVE CTH. MY ADVISER IS DEVELOPING A NEW RHEOLOGICAL MODEL FOR ROCKS THAT SPANS THE LARGE PRESSURE-TEMPERATURE-STRAIN RATE SPACE OF PLANETARY IMPACT EVENTS. I WILL AID DEVELOPMENT OF THIS MODEL BY INCORPORATING ACCURATE MELTING CURVES INCORPORATING NEWLY AVAILABLE RHEOLOGICAL MEASUREMENTS AND BENCHMARKING THE CODE. THUS MY WORK WILL IMPROVE THE OVERALL CAPABILITIES OF THE CTH CODE TO MODEL LARGE SCALE DEFORMATION EVENTS ON ROCKY PLANETS. WITH THE UPDATED CODE I WILL CALCULATE THE AMOUNT OF MELTING AND VAPORIZATION DURING LARGE IMPACT EVENTS. THESE RESULTS WILL BE FITTED WITH SCALINGS LAWS THAT WILL BE APPLICABLE TO A WIDE RANGE OF PLANETARY PROBLEMS. I WILL SPECIFICALLY ADDRESS THE AMOUNT OF MELT DURING MOON FORMING IMPACTS AND DURING LATE ACCRETION ON THE EARTH. COMPLETION OF THE WORK DESCRIBED ABOVE SUPPORTS THE NESSF PLANETARY SCIENCE PROGRAM BECAUSE THIS WORK WILL DRIVE UNDERSTANDING HOW CHEMICAL AND PHYSICAL PROCESSES IN THE SOLAR SYSTEM OPERATE INTERACT AND EVOLVE. $45.0k 7/21/18 Not listed THE EARTH AS WELL AS OTHER TERRESTRIAL PLANETS ARE SHAPED BY IMPACTS. LARGE IMPACTS EVENTS ACCOUNT FOR THE MAJORITY OF MASS ACCRETION DURING THE END STAGES OF TERRESTRIAL PLANET FORMATION. ALTHOUGH LARGE IMPACTS HAVE A MASSIVE BUDGET OF KINETIC ENERGY THEY CANNOT ERASE THE GEOCHEMICAL SIGNATURES OF EARTH S ACCRETION RECORDED IN THE DEEP MANTLE NOBLE GASES AND W ISOTOPE VARIATIONS. HOWEVER WE DO NOT KNOW HOW MUCH MANTLE MELTING OCCURRED HOW DEEP THIS MELT WAS NOR WHERE PROJECTILE MATERIAL WAS DEPOSITED. UNDERSTANDING THE EXTENT OF IMPACT INDUCED MELTING IS DIFFICULT DUE TO THE LACK OF THERMODYNAMIC DATA ABOUT PLANETARY MINERALS. THE PRIMARY OBJECTIVE OF MY RESEARCH IS TO BUILD A ROBUST SET OF TOOLS THAT MORE ACCURATELY PREDICT THE OUTCOMES OF LARGE IMPACTS. CURRENTLY THE STUDY OF GIANT IMPACTS IS LIMITED DUE TO THE LACK OF THERMODYNAMIC DATA ON MANTLE MINERALS SUCH AS OLIVINE BRONZITE AND BRIDGMANITE. FURTHERMORE CURRENT MODELS OF THE EQUATION OF STATE OF THE MANTLE TYPICALLY ASSUME THAT THE MANTLE IS MADE OF PURE FORSTERITE. THIS ASSUMPTION PREVENTS ACCURATE PREDICTIONS OF MELTING DURING GIANT IMPACTS. THEREFORE MY PROPOSED WORK WILL BE TO MAKE MEASUREMENTS OF IMPORTANT MANTLE MINERALS IN EXTREME CONDITIONS. TO MAKE MEASUREMENTS OF MANTLE MATERIALS I WILL PERFORM SHOCK-AND-RELEASE EXPERIMENTS ON TWO EXPERIMENTAL PLATFORMS TO OBTAIN EQUATION OF STATE DATA. TO ACHIEVE CONDITIONS WITH PRESSURES OF UP TO ~200 GPA I WILL USE THE 2-STAGE LIGHT GAS GUN IN PROF. STEWART S SHOCK COMPRESSION LABORATORY AT UC DAVIS. TO REACH THE HIGHEST PRESSURES OF PLANETARY IMPACT EVENTS THE GROUP HAS PERFORMED EQUATION OF STATE (EOS) EXPERIMENTS IN THE SANDIA Z FUNDAMENTAL SCIENCE PROGRAM AND MORE ARE PLANNED FOR 2016-2017. DATA TAKEN IN THESE EXPERIMENTS WILL BE COMBINED WITH AVAILABLE STATIC AND SHOCK EXPERIMENTAL DATA TO RECALCULATE THERMODYNAMIC PROPERTIES OF MANTLE MINERALS. MY PRIMARY GOAL HERE IS TO ASSEMBLE AN (MG FE)SIO3 (BRONZITE-BRIDGMANITE) EQUATION OF STATE TABLE AND IMPROVE THE OLIVINE EQUATION OF STATE TABLE. USING THESE UPDATED EQUATION OF STATE MODELS I WILL THEN WORK TO IMPROVE CTH. MY ADVISER IS DEVELOPING A NEW RHEOLOGICAL MODEL FOR ROCKS THAT SPANS THE LARGE PRESSURE-TEMPERATURE-STRAIN RATE SPACE OF PLANETARY IMPACT EVENTS. I WILL AID DEVELOPMENT OF THIS MODEL BY INCORPORATING ACCURATE MELTING CURVES INCORPORATING NEWLY AVAILABLE RHEOLOGICAL MEASUREMENTS AND BENCHMARKING THE CODE. THUS MY WORK WILL IMPROVE THE OVERALL CAPABILITIES OF THE CTH CODE TO MODEL LARGE SCALE DEFORMATION EVENTS ON ROCKY PLANETS. WITH THE UPDATED CODE I WILL CALCULATE THE AMOUNT OF MELTING AND VAPORIZATION DURING LARGE IMPACT EVENTS. THESE RESULTS WILL BE FITTED WITH SCALINGS LAWS THAT WILL BE APPLICABLE TO A WIDE RANGE OF PLANETARY PROBLEMS. I WILL SPECIFICALLY ADDRESS THE AMOUNT OF MELT DURING MOON FORMING IMPACTS AND DURING LATE ACCRETION ON THE EARTH. COMPLETION OF THE WORK DESCRIBED ABOVE SUPPORTS THE NESSF PLANETARY SCIENCE PROGRAM BECAUSE THIS WORK WILL DRIVE UNDERSTANDING HOW CHEMICAL AND PHYSICAL PROCESSES IN THE SOLAR SYSTEM OPERATE INTERACT AND EVOLVE. $45.0k 8/17/17 1 THE EARTH AS WELL AS OTHER TERRESTRIAL PLANETS ARE SHAPED BY IMPACTS. LARGE IMPACTS EVENTS ACCOUNT FOR THE MAJORITY OF MASS ACCRETION DURING THE END STAGES OF TERRESTRIAL PLANET FORMATION. ALTHOUGH LARGE IMPACTS HAVE A MASSIVE BUDGET OF KINETIC ENERGY, THEY CANNOT ERASE THE GEOCHEMICAL SIGNATURES OF EARTH S ACCRETION, RECORDED IN THE DEEP MANTLE NOBLE GASES AND W ISOTOPE VARIATIONS. HOWEVER, WE DO NOT KNOW HOW MUCH MANTLE MELTING OCCURRED, HOW DEEP THIS MELT WAS, NOR WHERE PROJECTILE MATERIAL WAS DEPOSITED. UNDERSTANDING THE EXTENT OF IMPACT INDUCED MELTING IS DIFFICULT DUE TO THE LACK OF THERMODYNAMIC DATA ABOUT PLANETARY MINERALS. THE PRIMARY OBJECTIVE OF MY RESEARCH IS TO BUILD A ROBUST SET OF TOOLS THAT MORE ACCURATELY PREDICT THE OUTCOMES OF LARGE IMPACTS. CURRENTLY, THE STUDY OF GIANT IMPACTS IS LIMITED DUE TO THE LACK OF THERMODYNAMIC DATA ON MANTLE MINERALS SUCH AS OLIVINE, BRONZITE, AND BRIDGMANITE. FURTHERMORE, CURRENT MODELS OF THE EQUATION OF STATE OF THE MANTLE TYPICALLY ASSUME THAT THE MANTLE IS MADE OF PURE FORSTERITE. THIS ASSUMPTION PREVENTS ACCURATE PREDICTIONS OF MELTING DURING GIANT IMPACTS. THEREFORE, MY PROPOSED WORK WILL BE TO MAKE MEASUREMENTS OF IMPORTANT MANTLE MINERALS IN EXTREME CONDITIONS. TO MAKE MEASUREMENTS OF MANTLE MATERIALS, I WILL PERFORM SHOCK-AND-RELEASE EXPERIMENTS ON TWO EXPERIMENTAL PLATFORMS TO OBTAIN EQUATION OF STATE DATA. TO ACHIEVE CONDITIONS WITH PRESSURES OF UP TO ~200 GPA, I WILL USE THE 2-STAGE LIGHT GAS GUN IN PROF. STEWART S SHOCK COMPRESSION LABORATORY AT UC DAVIS. TO REACH THE HIGHEST PRESSURES OF PLANETARY IMPACT EVENTS, THE GROUP HAS PERFORMED EQUATION OF STATE (EOS) EXPERIMENTS IN THE SANDIA Z FUNDAMENTAL SCIENCE PROGRAM, AND MORE ARE PLANNED FOR 2016-2017. DATA TAKEN IN THESE EXPERIMENTS WILL BE COMBINED WITH AVAILABLE STATIC AND SHOCK EXPERIMENTAL DATA TO RECALCULATE THERMODYNAMIC PROPERTIES OF MANTLE MINERALS. MY PRIMARY GOAL HERE IS TO ASSEMBLE AN (MG,FE)SIO3 (BRONZITE-BRIDGMANITE) EQUATION OF STATE TABLE AND IMPROVE THE OLIVINE EQUATION OF STATE TABLE. USING THESE UPDATED EQUATION OF STATE MODELS, I WILL THEN WORK TO IMPROVE CTH. MY ADVISER IS DEVELOPING A NEW RHEOLOGICAL MODEL FOR ROCKS THAT SPANS THE LARGE PRESSURE-TEMPERATURE-STRAIN RATE SPACE OF PLANETARY IMPACT EVENTS. I WILL AID DEVELOPMENT OF THIS MODEL BY INCORPORATING ACCURATE MELTING CURVES, INCORPORATING NEWLY AVAILABLE RHEOLOGICAL MEASUREMENTS, AND BENCHMARKING THE CODE. THUS, MY WORK WILL IMPROVE THE OVERALL CAPABILITIES OF THE CTH CODE TO MODEL LARGE SCALE DEFORMATION EVENTS ON ROCKY PLANETS. WITH THE UPDATED CODE, I WILL CALCULATE THE AMOUNT OF MELTING AND VAPORIZATION DURING LARGE IMPACT EVENTS. THESE RESULTS WILL BE FITTED WITH SCALINGS LAWS THAT WILL BE APPLICABLE TO A WIDE RANGE OF PLANETARY PROBLEMS. I WILL SPECIFICALLY ADDRESS THE AMOUNT OF MELT DURING MOON FORMING IMPACTS AND DURING LATE ACCRETION ON THE EARTH. COMPLETION OF THE WORK DESCRIBED ABOVE SUPPORTS THE NESSF PLANETARY SCIENCE PROGRAM BECAUSE THIS WORK WILL DRIVE UNDERSTANDING HOW CHEMICAL AND PHYSICAL PROCESSES IN THE SOLAR SYSTEM OPERATE, INTERACT AND EVOLVE. Funding Only Action $45.0k 8/17/17 Not listed THE EARTH AS WELL AS OTHER TERRESTRIAL PLANETS ARE SHAPED BY IMPACTS. LARGE IMPACTS EVENTS ACCOUNT FOR THE MAJORITY OF MASS ACCRETION DURING THE END $30.0k 8/10/16