Chah Talkh
Sanandaj-Sirjan zone, Iran
Mississippi Valley TypePb-Zn
- Type
- Fracture-fill Pb-Zn in Lower Cretaceous marly limestones (MVT or exhalative)
Fracture fill in Lower Cretaceous marly limestones, MVT or exhalative type according to the authors. Lead of Sanandaj-Sirjan zone deposits poorly radiogenic and clustered (206Pb/204Pb from 18.39 to 18.47), distinct from the Urumieh-Dokhtar zone: the structural domain controls the signature more than the host rock or ore type (Mirnejad et al., 2011). Coordinates not given.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.454 ± 0.005 | 1 | galena Single analysis; μ = 9.819 and κ = 3.931 calculated by the authors. | Mirnejad et al. (2011), Pb isotopic compositions of some Zn-Pb deposits and occurrences f… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.635 ± 0.002 | 1 | galena Single analysis; μ = 9.819 and κ = 3.931 calculated by the authors. | Mirnejad et al. (2011), Pb isotopic compositions of some Zn-Pb deposits and occurrences f… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.6 ± 0.007 | 1 | galena Single analysis; μ = 9.819 and κ = 3.931 calculated by the authors. | Mirnejad et al. (2011), Pb isotopic compositions of some Zn-Pb deposits and occurrences f… |
Deposits of the same type
- Rhenish and Alpine MVT deposits (Bleiberg, Mechernich) Germany/Austria
- Tri-State district United States
- Northern Arkansas district United States
- Central and East Tennessee MVT United States
- Southern Appalachians MVT United States
- Upper Mississippi Valley district United States
- Limei China
- Yutang China
Cite this page
IsoFind Atlas (2026). Chah Talkh, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/chah-talkh/ (accessed 2026-10-15).
@misc{isofind2026chahtalkhisotopesignatures,
title = {Chah Talkh, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/chah-talkh/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15