TY  - RPRT
TI  - Minor-element and Sr-isotope geochemistry of tertiary stocks, Colorado mineral belt
AU  - E.C. Simmons
AU  - C. E. Hedge
PY  - 1978
DO  - 10.1007/bf00383298
UR  - https://pubs.usgs.gov/publication/70012643
ID  - 70012643
ER  -