TY - RPRT TI - Excess nitrogen in selected thermal and mineral springs of the Cascade Range in northern California, Oregon, and Washington: Sedimentary or volcanic in origin? AU - Robert H. Mariner AU - William C. Evans AU - T. S. Presser AU - L. D. White PY - 2003 DO - 10.1016/s0377-0273(02)00414-6 UR - https://pubs.usgs.gov/publication/70025881 ID - 70025881 ER -