TY - RPRT TI - Revised ages for tuffs of the Yellowstone Plateau volcanic field: Assignment of the Huckleberry Ridge Tuff to a new geomagnetic polarity event AU - M. A. Lanphere AU - D.E. Champion AU - R.L. Christiansen AU - G. A. Izett AU - J. D. Obradovich PY - 2002 DO - 10.1130/0016-7606(2002)114<0559:raftot>2.0.co;2 UR - https://pubs.usgs.gov/publication/70025062 ID - 70025062 ER -