The increasing global demand for metals is being driven by the transition to renewable energy technologies (like solar and wind) and energy storage solutions (like batteries). Mineral deposits that are acidic and sulfur rich are called “high-sulfidation epithermal deposits.” They are formed from magmatic-hydrothermal fluids and are important sources of critical and precious metals such as copper, antimony, arsenic, gold, and silver. Despite their economic significance, the geological and geochemical controls on whether these deposits are silver-rich or silver-poor are not well understood. Because silver is often recovered as a by-product in these deposits, we need to improve our ability to predict where high-grade silver zones will occur. This is essential for progressing from exploration to economic viability and meeting growing industrial demand for silver in solar panels and batteries. This team will use geochemical and age information to evaluate different models for the origin of silver-rich deposits and the timing of silver mineralization in the newly discovered world-class Filo Del Sol deposit in the San Juan province, Argentina. Their findings at Filo Del Sol have the potential to benefit mineral exploration strategies in the U.S. and globally. In addition, students will learn technical skills needed for employment in the mining sector and it will also raise awareness for professional career paths in mineral resources. Previous studies of high-sulfidation epitherm