Blackwater
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.; Oxidized dump material with high Pb conc.). Tecopa Terrane (Table 1). Published coordinates (n° 39 : 35°47′02″ N, 115°52′30″ O; n° 40 : 35°45′22″ N, 115°49′41″ O).
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.555 ± 0.173 | 18.432 / 18.677 | 2 | galena, oxidised material (dump, limonite or oxides) Mean and standard deviation recalculated from 2 analyses, 18.432 to 18.677 (n° 39 (Gel-N) 18.677; n° 40 (Gel-N) 18.432). | 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 |
|---|---|---|---|---|
| 15.662 ± 0.042 | 15.632 / 15.692 | 2 | galena, oxidised material (dump, limonite or oxides) Mean and standard deviation recalculated from 2 analyses, 15.632 to 15.692 (n° 39 (Gel-N) 15.692; n° 40 (Gel-N) 15.632). | 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 |
|---|---|---|---|---|
| 39.882 ± 0.152 | 39.774 / 39.989 | 2 | galena, oxidised material (dump, limonite or oxides) Mean and standard deviation recalculated from 2 analyses, 39.774 to 39.989 (n° 39 (Gel-N) 39.989; n° 40 (Gel-N) 39.774). | Church et al. (2005), Base- and precious-metal deposits in the Basin and Range of Souther… |
Deposits of the same type
- Chambers United States
- Noonday (Shoshone district) United States
- Colosseum United States
- Paddys Pride United States
- Gladstone United States
- Teutonia United States
- Queen of Sheba United States
- Honolulu United States
Cite this page
IsoFind Atlas (2026). Blackwater, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/blackwater/ (accessed 2026-10-21).
@misc{isofind2026blackwaterisotopesignatures,
title = {Blackwater, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/blackwater/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21