Weibao district (East and West Weibao)
Qimantagh, Eastern Kunlun (Xinjiang-Qinghai border), China
SkarnsPb-Zn
- Type
- Pb-Zn skarn with massive (east) and banded (west) ore
Two skarn deposits in Mesoproterozoic carbonates of the Langyashan Formation: massive ore linked to a Triassic granitoid at East Weibao, banded ore without exposed intrusion at West Weibao. Sulfide stage at 360 to 400 °C with immiscibility in the east, 280 to 340 °C in the west. Magmatic sulfur (-2.2 to +3.6 ‰) clearly distinct from the host rock (+10 to +18 ‰), lead mixing host rock and Triassic granitoids. Indicative coordinates.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.45 ± 0.07 ‰ | 2.4 / 2.5 ‰ | 2 | East Weibao sphalerite Mean and standard deviation recalculated from 2 samples, Table 4. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 1.75 ± 0.78 ‰ | 1.2 / 2.3 ‰ | 2 | East Weibao galena Mean and standard deviation recalculated from 2 samples, Table 4. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 2.23 ± 1.95 ‰ | 0 / 3.6 ‰ | 3 | West Weibao sphalerite Mean and standard deviation recalculated from 3 samples, Table 4. Sphalerite is always heavier than coexisting galena (isotopic equilibrium). | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| −0.87 ± 0.92 ‰ | −2.2 / 0.1 ‰ | 6 | West Weibao galena Mean and standard deviation recalculated from 6 samples, Table 4. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 14.97 ± 2.17 ‰ | 10.1 / 18.3 ‰ | 10 | Langyashan Formation host rocks Mean and standard deviation recalculated from 10 samples, Table 4. Marine carbonate signature, unrelated to ore sulfur. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.27 ± 0.015 | 18.259 / 18.291 | 4 | East Weibao sphalerite and galena Mean and standard deviation recalculated from 4 samples, Table 5. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 18.3 ± 0.024 | 18.26 / 18.336 | 9 | West Weibao sphalerite and galena Mean and standard deviation recalculated from 9 samples, Table 5. No significant difference with East Weibao: common, homogeneous source. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.61 ± 0.018 | 15.595 / 15.635 | 4 | East Weibao sphalerite and galena Mean and standard deviation recalculated from 4 samples, Table 5. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 15.612 ± 0.024 | 15.58 / 15.659 | 9 | West Weibao sphalerite and galena Mean and standard deviation recalculated from 9 samples, Table 5. No significant difference with East Weibao: common, homogeneous source. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.108 ± 0.058 | 38.064 / 38.189 | 4 | East Weibao sphalerite and galena Mean and standard deviation recalculated from 4 samples, Table 5. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 38.14 ± 0.097 | 38.007 / 38.253 | 9 | West Weibao sphalerite and galena Mean and standard deviation recalculated from 9 samples, Table 5. No significant difference with East Weibao: common, homogeneous source. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 9.27 ± 0.61 ‰ | 8.6 / 9.8 ‰ | 3 | quartz (East Weibao, sulfide stage) Mean and standard deviation recalculated from 3 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 4.73 ± 0.76 ‰ | 4.2 / 5.6 ‰ | 3 | calculated ore fluid (East Weibao, sulfide stage, 395 °C) Mean and standard deviation recalculated from 3 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 16.2 ± 1 ‰ | 15.3 / 17.3 ‰ | 4 | quartz (West Weibao, sulfide stage) Mean and standard deviation recalculated from 4 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 9.7 ± 1 ‰ | 8.8 / 10.8 ‰ | 4 | calculated ore fluid (West Weibao, sulfide stage, 310 °C) Mean and standard deviation recalculated from 4 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| 11.1 ± 0.57 ‰ | 10.7 / 11.5 ‰ | 2 | quartz (district, carbonate stage) Mean and standard deviation recalculated from 2 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| −0.6 ± 0.57 ‰ | −1 / −0.2 ‰ | 2 | calculated ore fluid (district, carbonate stage, 200 °C) Mean and standard deviation recalculated from 2 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
δD in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −85.7 ± 2.5 ‰ | −88 / −83 ‰ | 3 | fluid-inclusion water of quartz (East Weibao, sulfide stage) Mean and standard deviation recalculated from 3 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| −96.5 ± 3.1 ‰ | −99 / −92 ‰ | 4 | fluid-inclusion water of quartz (West Weibao, sulfide stage) Mean and standard deviation recalculated from 4 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
| −47.5 ± 3.5 ‰ | −50 / −45 ‰ | 2 | fluid-inclusion water of quartz (district, carbonate stage) Mean and standard deviation recalculated from 2 samples, Table 3. | Fang et al. (2015), Ore genesis of the Weibao lead-zinc district, Eastern Kunlun Orogen, … |
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Cite this page
IsoFind Atlas (2026). Weibao district (East and West Weibao), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/district-de-weibao-weibao-est-et-weibao-ouest/ (accessed 2026-10-13).
@misc{isofind2026weibaodistricteastandwestweib,
title = {Weibao district (East and West Weibao), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/district-de-weibao-weibao-est-et-weibao-ouest/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13