TY  - RPRT
TI  - Seawater as the source of minor elements in black shales, phosphorites and other sedimentary rocks
AU  - D.Z. Piper
PY  - 1994
DO  - 10.1016/0009-2541(94)90044-2
UR  - https://pubs.usgs.gov/publication/70017122
ID  - 70017122
ER  -