TY  - RPRT
TI  - Nd, O and Sr isotopic constraints on the origin of Precambrian rocks, southern Black Hills, South Dakota
AU  - R.J. Walker
AU  - G. N. Hanson
AU  - J. J. Papike
AU  - J. R. O’Neil
PY  - 1986
DO  - 10.1016/0016-7037(86)90230-9
UR  - https://pubs.usgs.gov/publication/70014580
ID  - 70014580
ER  -