TY  - RPRT
TI  - Geochemical investigations of some black shales and associated rocks
AU  - James David Vine
AU  - Elizabeth B. Tourtelot
PY  - 1969
DO  - 10.3133/b1314a
UR  - https://pubs.usgs.gov/publication/b1314A
ID  - b1314A
ER  -