TY - RPRT TI - Chapter 4 The meade peak member of the phosphoria formation: Temporal and spatial variations in sediment geochemistry AU - R.B. Perkins AU - David Z. Piper PY - 2004 DO - 10.1016/s1874-2734(04)80006-8 UR - https://pubs.usgs.gov/publication/70208042 ID - 70208042 ER -