TY  - RPRT
TI  - Comparison of organic geochemistry and metal enrichment in two black shales: Cambrian Alum Shale of Sweden and Devonian Chattanooga Shale of United States
AU  - J.S. Leventhal
PY  - 1991
DO  - 10.1007/bf00195256
UR  - https://pubs.usgs.gov/publication/70016858
ID  - 70016858
ER  -