TY  - RPRT
TI  - Geochemical data for Jurassic diabase associated with early Mesozoic basins in the eastern United States: Gettysburg basin and vicinity, Pennsylvania and Maryland
AU  - David Gottfried
AU  - Albert J. Froelich
AU  - J. N. Grossman
PY  - 1991
DO  - 10.3133/ofr91322e
UR  - https://pubs.usgs.gov/publication/ofr91322E
ID  - ofr91322E
ER  -