TY  - RPRT
TI  - Possible further evidence for 3.8 b.y.-old rocks in the Minnesota River Valley of southwestern Minnesota
AU  - Samuel S. Goldich
AU  - Bruce R. Doe
AU  - Maryse Helen Delevaux
PY  - 1975
DO  - 10.3133/ofr7565
UR  - https://pubs.usgs.gov/publication/ofr7565
ID  - ofr7565
ER  -