PROGRAMMATIC COLLABORATION WITH STATE LEGISLATURES TO FOR SUBSURFACE MAFIC AND ULTRAMAFIC ROCK MAPPING AND ANALYSIS FOR CARBON MINERALIZATION IN THE UNITED STATES (SUBMAP-CO2) THE UNIVERSITY OF TEXAS AT AUSTIN IN COLLABORATION WITH COLUMBIA UNIVERSITY WILL CONDUCT A RESOURCE ASSESSMENT OF MAFIC AND ULTRAMAFIC BODIES IN THE SUBSURFACE OF THE USA TO IDENTIFY PERMANENT CO2 STORAGE OPPORTUNITIES. THE OVERALL OBJECTIVE OF THIS WORK IS TO CHARACTERIZE AND DOCUMENT THE VOLUMETRIC EXTENT, MINERALOGY, CRITICAL MINERAL CONTENT, PETROPHYSICAL CHARACTERISTICS (GRAIN SIZE, GRAIN DENSITY, POROSITY, PERMEABILITY, AND CARBONATION POTENTIAL AND REACTION RATES OF MAFIC AND ULTRAMAFIC ROCKS IN THE SUBSURFACE OF THE USA WHERE LARGE AMOUNTS OF CO2 CAN BE STORED AS CARBONATE MINERALS VIA CARBONATION REACTIONS). RESULTS FROM THIS STUDY WILL SERVE TO INFORM FUTURE ASSESSMENTS OF RESOURCE UTILITY AND IDENTIFY OPPORTUNITIES FOR EFFECTIVE, LONG-TERM, SAFE, ECONOMICAL, AND SCALABLE, MINERALIZATION-BASED CO2 STORAGE.