Kalmakyr (Almalyk)
Almalyk, Tashkent Region, Uzbekistan
PorphyriesCu-Au-Mo (W)
- Type
- Porphyry copper (± W)
Large porphyry copper-gold-molybdenum deposit in a Late Palaeozoic granodiorite, the largest copper deposit of Central Asia. Indicative coordinates.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.057 ± 0.031 | 18.035 / 18.079 | 2 | pyrite Mean and standard deviation recalculated from 2 samples, Table 2. Measured ratios, not age-corrected: the author regards them as close to initial common lead. | Chiaradia (2003), The evolution of tungsten sources in crustal mineralization from Archea… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.593 ± 0.001 | 15.592 / 15.594 | 2 | pyrite Mean and standard deviation recalculated from 2 samples, Table 2. Measured ratios, not age-corrected: the author regards them as close to initial common lead. | Chiaradia (2003), The evolution of tungsten sources in crustal mineralization from Archea… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.046 ± 0.013 | 38.037 / 38.056 | 2 | pyrite Mean and standard deviation recalculated from 2 samples, Table 2. Measured ratios, not age-corrected: the author regards them as close to initial common lead. | Chiaradia (2003), The evolution of tungsten sources in crustal mineralization from Archea… |
Deposits of the same type
- Mikheevskoe Russia
- Sar Cheshmeh Iran
- Chagele China
- Zhuonuo China
- Malanjkhand India
- Jiru China
- Kadjaran (Kajaran) Arménie
- Sharang China
Cite this page
IsoFind Atlas (2026). Kalmakyr (Almalyk), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/kalmakyr-almalyk/ (accessed 2026-10-13).
@misc{isofind2026kalmakyralmalykisotopesignatu,
title = {Kalmakyr (Almalyk), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/kalmakyr-almalyk/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13