Co-precipitation of calcite and sulfur at depth signifies biotic activity at the onset of weathering in crystalline rocks from temperate climates


Virginia Marcon, Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, Hang Wen, Pennsylvania State University, State College, PA, United States, Li Li, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States and Susan Brantley, Pennsylvania State University, Earth and Environmental Systems Institute, University Park, PA, United States