TY  - RPRT
TI  - Preliminary model of porphyry copper deposits
AU  - Byron R. Berger
AU  - Robert A. Ayuso
AU  - Jeffrey C. Wynn
AU  - Robert R. Seal
PY  - 2008
DO  - 10.3133/ofr20081321
UR  - https://pubs.usgs.gov/publication/ofr20081321
ID  - ofr20081321
ER  -