Noonday (Shoshone district)
Southern California or southern Nevada (Mojave region, Basin and Range), United States
Other hydrothermalPb (Zn, Ag)
- Type
- Vein and replacement galena, mostly in the Noonday Dolomite (Tecopa Terrane)
Locality of Table 2 of Church et al. (2005) (Gn in Noonday Dol.; Gn in Noonday Dol.). Tecopa Terrane (Table 1). Published coordinates (n° 36 : 35°49′45″ N, 116°05′45″ O; n° 37 : 35°49′42″ N, 116°05′48″ O).
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.312 ± 0.062 | 18.268 / 18.355 | 2 | galena Mean and standard deviation recalculated from 2 analyses, 18.268 to 18.355 (n° 36 (Gel-N) 18.355; n° 37 (3FI-Na) 18.268). Data of Zartman (1974) for the 3FI-Na method. | 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 |
|---|---|---|---|---|
| 15.617 ± 0.01 | 15.61 / 15.624 | 2 | galena Mean and standard deviation recalculated from 2 analyses, 15.610 to 15.624 (n° 36 (Gel-N) 15.610; n° 37 (3FI-Na) 15.624). Data of Zartman (1974) for the 3FI-Na method. | 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 |
|---|---|---|---|---|
| 39.456 ± 0.138 | 39.358 / 39.553 | 2 | galena Mean and standard deviation recalculated from 2 analyses, 39.358 to 39.553 (n° 36 (Gel-N) 39.358; n° 37 (3FI-Na) 39.553). Data of Zartman (1974) for the 3FI-Na method. | Church et al. (2005), Base- and precious-metal deposits in the Basin and Range of Souther… |
Deposits of the same type
- Chambers United States
- Blackwater United States
- Paddys Pride United States
- Gladstone United States
- Colosseum United States
- Teutonia United States
- Queen of Sheba United States
- Honolulu United States
Cite this page
IsoFind Atlas (2026). Noonday (Shoshone district), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/noonday-district-de-shoshone/ (accessed 2026-10-21).
@misc{isofind2026noondayshoshonedistrictisotop,
title = {Noonday (Shoshone district), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/noonday-district-de-shoshone/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21