TY  - RPRT
TI  - Chapter 14 Rex Chert member of the Permian Phosphoria Formation: Composition, with emphasis on elements of environmental concern
AU  - James R. Hein
AU  - B.R. McIntyre
AU  - R.B. Perkins
AU  - David Z. Piper
AU  - J. G. Evans
PY  - 2004
DO  - 10.1016/s1874-2734(04)80016-0
UR  - https://pubs.usgs.gov/publication/70208044
ID  - 70208044
ER  -