TY  - RPRT
TI  - Compositions, ages, and diagenetic histories of the carbonate, sulfide, oxide, and phosphatic concretions at Gay Head, Massachusetts
AU  - L. J. Poppe
AU  - R.F. Commeau
AU  - Dennis W. O’Leary
PY  - 1988
UR  - https://pubs.usgs.gov/publication/70014174
ID  - 70014174
ER  -