Ophir
Southern California or southern Nevada (Mojave region, Basin and Range), United States
SkarnsPb (Zn, Ag)
- Type
- Pb-Zn-Ag skarn and replacement related to Jurassic and Cretaceous intrusions (Darwin Terrane)
Locality of Table 2 of Church et al. (2005) (Gn and qtz in dolomite). Darwin Terrane (Table 1). Published coordinates (n° 21 : 35°50′00″ N, 117°17′00″ O).
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.143 | 1 | galena Single analysis (n° 21 (Gel-N)). | Church et al. (2005), Base- and precious-metal deposits in the Basin and Range of Souther… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.587 | 1 | galena Single analysis (n° 21 (Gel-N)). | Church et al. (2005), Base- and precious-metal deposits in the Basin and Range of Souther… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.677 | 1 | galena Single analysis (n° 21 (Gel-N)). | Church et al. (2005), Base- and precious-metal deposits in the Basin and Range of Souther… |
Deposits of the same type
- Copper Queen (Gold Bottom) United States
- Minnietta (Modoc district) United States
- Lemoigne United States
- Cerro Gordo United States
- Ubehebe United States
- Mohawk United States
- Granite Creek (Osgood Mountains) United States
- CanTung (E zone) Canada
Cite this page
IsoFind Atlas (2026). Ophir, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/ophir-basin-and-range/ (accessed 2026-10-21).
@misc{isofind2026ophirisotopesignatures,
title = {Ophir, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/ophir-basin-and-range/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21