THE THERMAL ARCHITECTURE OF THE LITHOSPHERE AND THE GENESIS OF STRATEGIC RESOURCE SYSTEMS: AN ANALYSIS OF GEOTHERMAL GRADIENTS AND CRITICAL MINERAL EXPLORATION

Abstract

The rapid global shift toward decarbonized energy systems has triggered unprecedented demand for critical minerals, including lithium, rare earth elements (REEs), and base metals, exposing vulnerabilities in geographically concentrated supply chains. This study positions lithospheric thermal architecture and elevated geothermal gradients as the fundamental drivers of critical mineral mobilization, transport, and concentration within the Earth’s crust. High-enthalpy geothermal systems, exemplified by the Salton Sea Known Geothermal Resource Area, provide a transformative platform for integrated resource recovery: Direct Lithium Extraction (DLE) enables rapid, carbon-neutral lithium recovery from brines while co-producing baseload geothermal electricity. The study synthesizes advanced geophysical imaging and artificial intelligence (AI) enabled analysis of historical geological datasets to identify blind geothermal–mineral systems, revealing structurally and thermally fertile corridors where heat, fluids, and metals converge. Engineering challenges including scaling, corrosion, and chemical instability of high-temperature brines are examined, alongside life-cycle assessments indicating potential reductions in water and land use by over 80% relative to conventional hard-rock or evaporative lithium production. By framing geothermal reservoirs as thermo-metallogenic systems rather than isolated energy resources, this research demonstrates the feasibility of coupling energy production with strategic mineral co-extraction. This integrated approach provides a resilient pathway for domestic mineral security, reduces reliance on foreign supply chains, and aligns sustainable extraction with the global energy transition. Ultimately, the study establishes a thermally-informed framework for next-generation exploration, modeling, and industrial deployment of critical mineral - geothermal systems