TY - RPRT TI - Chemical evolution and estimated flow velocity of water in the Trinity Aquifer, south-central Texas AU - Sonya A. Jones AU - Roger W. Lee AU - John F. Busby PY - 1997 DO - 10.3133/wri974078 UR - https://pubs.usgs.gov/publication/wri974078 ID - wri974078 ER -