33. Fluid and Heat for Energy ...and Ore

Active geothermal systems are sources of clean energy and provide insights into ore forming processes. What are two economic geologists learning as they each pursue deep holes, big science, and audacious ideas to help provide the world’s energy needs from clean, renewable sources? Stuart Simmons started his career in New Zealand, making key observations with big implications for low-sulfidation gold precipitation. His recognition that platy calcite textures represent boiling zone...