Shaojiwan
North-western Guizhou, Yadu-Mangdong fault (Sichuan-Yunnan-Guizhou province), China
Mississippi Valley TypeZn-Pb
- Type
- Thrust-controlled Zn-Pb hosted in Devonian and Permian carbonates
Deposit of about 0.5 Mt metal (0.71 to 10.56 % Pb, 2.09 to 30.27 % Zn) as breccias, veinlets and disseminations in dolomitised limestones, about 50 km from Tianqiao on the same structure. Sulfur from reduction of host evaporitic sulfate, lead mostly from the Proterozoic basement, strontium mixed between basement and cover: fluid mixing. Indicative coordinates.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 11.43 ± 0.15 ‰ | 11.3 / 11.6 ‰ | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 2. Data from Zhang et al. (2011), reused by the authors. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 8.4 ‰ | 1 | galena One analysis, Table 2. Datum from Zhang et al. (2011). | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… | |
| 10.33 ± 0.56 ‰ | 9.8 / 11.1 ‰ | 7 | sphalerite (brown to pale yellow) Mean and standard deviation recalculated from 7 samples, Table 2. δ34S pyrite > sphalerite > galena within a sample. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.645 ± 0.022 | 18.62 / 18.661 | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 3. The text gives a mean of 38.136 for 208Pb/204Pb, a typo for 39.136 (Table 5). | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 18.658 ± 0.037 | 18.616 / 18.686 | 3 | sphalerite Mean and standard deviation recalculated from 3 samples, Table 3. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 18.678 | 1 | galena One analysis, Table 3. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.705 ± 0.01 | 15.694 / 15.714 | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 3. The text gives a mean of 38.136 for 208Pb/204Pb, a typo for 39.136 (Table 5). | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 15.712 ± 0.026 | 15.682 / 15.728 | 3 | sphalerite Mean and standard deviation recalculated from 3 samples, Table 3. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 15.719 | 1 | galena One analysis, Table 3. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 39.12 ± 0.039 | 39.075 / 39.144 | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 3. The text gives a mean of 38.136 for 208Pb/204Pb, a typo for 39.136 (Table 5). | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 39.142 ± 0.065 | 39.067 / 39.181 | 3 | sphalerite Mean and standard deviation recalculated from 3 samples, Table 3. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
| 39.165 | 1 | galena One analysis, Table 3. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.712 ± 0.0007 | 0.7113 / 0.7129 | 5 | sphalerite (initial ratio at 200 Ma) Mean and standard deviation recalculated from 5 samples, Table 4. More radiogenic than the sedimentary cover and Emeishan basalts, less than the basement. | Zhou et al. (2013), Geological and sulfur-lead-strontium isotopic studies of the Shaojiwa… |
Deposits of the same type
- Banbanqiao China
- Shanshulin China
- Tianqiao China
- Maoping China
- Huize China
- Daliangzi China
- Fule China
- Tianbaoshan China
Cite this page
IsoFind Atlas (2026). Shaojiwan, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/shaojiwan/ (accessed 2026-10-13).
@misc{isofind2026shaojiwanisotopesignatures,
title = {Shaojiwan, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/shaojiwan/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13