TY - RPRT TI - Changes in microbial communities and associated water and gas geochemistry across a sulfate gradient in coal beds: Powder River Basin, USA AU - Hannah Schweitzer AU - Daniel Ritter AU - Jennifer McIntosh AU - Elliott P. Barnhart AU - Alfred B. Cunningham AU - David Vinson AU - William H. Orem AU - Matthew W. Fields PY - 2019 DO - 10.1016/j.gca.2018.11.009 UR - https://pubs.usgs.gov/publication/70201455 ID - 70201455 ER -