Daliangzi
Huidong, southern Sichuan (Sichuan-Yunnan-Guizhou province), China
Mississippi Valley TypeZn-Pb (Cd, Ge, Ag)
- Type
- Zn-Pb hosted in Ediacaran dolomites (Dengying Formation), MVT-like
Very large Zn-Pb-Cd deposit of the Dengying Formation, with mainly massive ore (sphalerite and galena, with chalcopyrite, arsenopyrite, freibergite and pyrargyrite). Lead from Ediacaran sediments and overlying rocks, without excluding the basement; at hand-specimen scale, sphalerite δ66Zn and δ34S correlate, pointing to fluid mixing. Indicative coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : JMC 3-0749L
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.05 ± 0.06 ‰ | −0.11 / 0.05 ‰ | 9 | microdrilled sphalerite, specimen D-2084 (upper part of the orebody) Mean and standard deviation recalculated from 9 subsamples, Table 1. The text gives a mean of 0.01 ‰ for the upper specimen; the table gives -0.05 ‰. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
| 0.1 ± 0.05 ‰ | 0.02 / 0.15 ‰ | 10 | microdrilled sphalerite, specimen D-2004 (lower part of the orebody) Mean and standard deviation recalculated from 10 subsamples, Table 1. The text gives a mean of 0.19 ‰ for the lower specimen; the table gives 0.10 ‰. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 14.91 ± 0.48 ‰ | 14.3 / 15.6 ‰ | 9 | microdrilled sphalerite, specimen D-2084 (upper part of the orebody) Mean and standard deviation recalculated from 9 subsamples, Table 1. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
| 13.77 ± 0.23 ‰ | 13.4 / 14.1 ‰ | 9 | microdrilled sphalerite, specimen D-2004 (lower part of the orebody) Mean and standard deviation recalculated from 9 subsamples, Table 1. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.5221 ± 0.1491 | 18.3069 / 18.7095 | 9 | microdrilled sphalerite, specimen D-2084 (upper part of the orebody) Mean and standard deviation recalculated from 9 subsamples, Table 1. Lead carried by galena micro-inclusions. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
| 18.5587 ± 0.0738 | 18.4594 / 18.6692 | 10 | microdrilled sphalerite, specimen D-2004 (lower part of the orebody) Mean and standard deviation recalculated from 10 subsamples, Table 1. Lead carried by galena micro-inclusions. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.7132 ± 0.0169 | 15.6912 / 15.7353 | 9 | microdrilled sphalerite, specimen D-2084 (upper part of the orebody) Mean and standard deviation recalculated from 9 subsamples, Table 1. Lead carried by galena micro-inclusions. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
| 15.7119 ± 0.0082 | 15.7013 / 15.7236 | 10 | microdrilled sphalerite, specimen D-2004 (lower part of the orebody) Mean and standard deviation recalculated from 10 subsamples, Table 1. Lead carried by galena micro-inclusions. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.8438 ± 0.2061 | 38.551 / 39.1118 | 9 | microdrilled sphalerite, specimen D-2084 (upper part of the orebody) Mean and standard deviation recalculated from 9 subsamples, Table 1. Lead carried by galena micro-inclusions. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
| 38.8554 ± 0.115 | 38.7038 / 39.0256 | 10 | microdrilled sphalerite, specimen D-2004 (lower part of the orebody) Mean and standard deviation recalculated from 10 subsamples, Table 1. Lead carried by galena micro-inclusions. | Zhu et al. (2020), Isotope geochemistry of Zn, Pb and S in the Ediacaran strata hosted Zn… |
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Cite this page
IsoFind Atlas (2026). Daliangzi, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/daliangzi/ (accessed 2026-10-13).
@misc{isofind2026daliangziisotopesignatures,
title = {Daliangzi, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/daliangzi/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13