People in the geomicrobiology group at Appalachian State University
We are an interdisciplinary team of scientists from Appalachian State University, the United States Geological Survey, and other universities in the US. Suzanna Brauer (Biology) and Sarah Carmichael (Geological and Environmental Sciences) are the group's main advisors and administrators.
Suzanna Bräuer is a Professor in the Department of Biology at Appalachian State University. She is a microbiologist whose work includes microbial ecology of cave systems (particularly manganese oxidizing bacterial communities), the role of anthropogenic impact on microbial communities, and microbial methane production in peat bogs.
Sarah Carmichael is a Professor in the Department of Geological and Environmental Sciences at Appalachian State University. She studies the mineralogy of manganese ore deposits and the characteristics of manganese biominerals in caves, in addition to her work on cave sediment characterization and the geochemistry of mass extinctions. Her research heavily involves scanning and transmission electron microscopy, X-ray diffraction, and spectroscopic techniques.
Yongli Gao is an Associate Professor in the Department of Geological Sciences at the University of Texas at San Antonio. He is a karst hydrogeologist who specializes in basin-scale hydrologic simulations, sinkhole hazards, and paleoclimate and environmental reconstruction through speleothem geochemistry.
Cara Santelli is an Associate Professor in the Department of Earth Sciences at the University of Minnesota, after spending many years as a Research Geologist and Curator in the Department of Mineral Sciences at the Smithsonian Institution’s National Museum of Natural History. Her work examines the impact of microbial activity on a wide variety of geological processes such as biomineralization and weathering, metal redox transformations, fungal biomineralization processes, environmental geochemistry, and remediation of sites impacted by acid mine drainage pollution.