TY  - RPRT
TI  - Geochemistry of black shale deposits— A summary report
AU  - James D. Vine
AU  - Elizabeth B. Tourtelot
PY  - 1970
DO  - 10.2113/gsecongeo.65.3.253
UR  - https://pubs.usgs.gov/publication/70226292
ID  - 70226292
ER  -