TY - RPRT TI - Euramerican tonsteins: Overview, magmatic origin, and depositional-tectonic implications AU - P.C. Lyons AU - D.A. Spears AU - W.F. Outerbridge AU - R.D. Congdon AU - H. T. Evans PY - 1994 DO - 10.1016/0031-0182(94)90006-x UR - https://pubs.usgs.gov/publication/70017754 ID - 70017754 ER -