TY - RPRT TI - Geochemistry of dissolved inorganic carbon in a Coastal Plain aquifer. 2. Modeling carbon sources, sinks, and δ13C evolution AU - Peter B. McMahon AU - Francis H. Chapelle PY - 1991 DO - 10.1016/0022-1694(91)90111-t UR - https://pubs.usgs.gov/publication/70185492 ID - 70185492 ER -