Dongshengmiao
Langshan-Zhaertai, Urad Rear Banner, Bayannur, Inner Mongolia, China
SEDEXZn-Pb-S (Cu)
- Type
- Proterozoic SEDEX Zn-Pb with brecciated ore
Giant SEDEX deposit of the Zhaertai Group, mined since the 1970s; brecciated sphalerite-pyrrhotite-galena ore in dolomitic marbles and schists. Zn and Fe become heavier from south-west to north-east in the main orebody (Rayleigh fractionation away from the feeder zone), while lead stays homogeneous. Coordinates read on the detailed map of the publication.
δ66Zn in ‰ (per mil) Values of the same system
Standard : JMC 3-0749L
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.28 ± 0.08 ‰ | 0.17 / 0.4 ‰ | 10 | main orebody sphalerite Mean and standard deviation recalculated from 10 samples, Table 1. Values increasing from south-west to north-east. | Gao et al. (2018), Spatial evolution of Zn-Fe-Pb isotopes of sphalerite within a single o… |
δ56Fe in ‰ (per mil) Values of the same system
Standard : IRMM-014
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.22 ± 0.43 ‰ | −1.78 / −0.35 ‰ | 10 | main orebody sphalerite Mean and standard deviation recalculated from 10 samples, Table 1. Correlated with δ66Zn (R² = 0.77 without DSM12-34). | Gao et al. (2018), Spatial evolution of Zn-Fe-Pb isotopes of sphalerite within a single o… |
| −1.09 ± 0.41 ‰ | −1.58 / −0.44 ‰ | 5 | main orebody pyrrhotite Mean and standard deviation recalculated from 5 samples, Table 1. Close to the associated sphalerite. | Gao et al. (2018), Spatial evolution of Zn-Fe-Pb isotopes of sphalerite within a single o… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981, Non précisé dans la publication
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.161 ± 0.004 | 15.154 / 15.167 | 9 | galena, sphalerite, pyrite and pyrrhotite of brecciated ore Mean and standard deviation recalculated from 9 analyses, Table 2. Very unradiogenic, homogeneous lead: a single metal source. | Gao et al. (2018), Spatial evolution of Zn-Fe-Pb isotopes of sphalerite within a single o… |
| 15.186 ± 0.022 | 15.171 / 15.202 | 2 | ore pyrite Mean and standard deviation recalculated from 2 samples, Table 1 (D-8, orebody no. 5; D-15, orebody no. 8), model ages 1.95 and 2.07 Ga. Unradiogenic lead, between the mantle and lower-crust curves: significant mantle contribution according to the authors. Consistent with Gao et al. (2018). | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981, Non précisé dans la publication
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.149 ± 0.003 | 15.144 / 15.153 | 9 | galena, sphalerite, pyrite and pyrrhotite of brecciated ore Mean and standard deviation recalculated from 9 analyses, Table 2. Very unradiogenic, homogeneous lead: a single metal source. | Gao et al. (2018), Spatial evolution of Zn-Fe-Pb isotopes of sphalerite within a single o… |
| 15.163 ± 0.027 | 15.144 / 15.182 | 2 | ore pyrite Mean and standard deviation recalculated from 2 samples, Table 1 (D-8, orebody no. 5; D-15, orebody no. 8), model ages 1.95 and 2.07 Ga. Unradiogenic lead, between the mantle and lower-crust curves: significant mantle contribution according to the authors. Consistent with Gao et al. (2018). | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981, Non précisé dans la publication
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 35.317 ± 0.008 | 35.3 / 35.326 | 9 | galena, sphalerite, pyrite and pyrrhotite of brecciated ore Mean and standard deviation recalculated from 9 analyses, Table 2. Very unradiogenic, homogeneous lead: a single metal source. | Gao et al. (2018), Spatial evolution of Zn-Fe-Pb isotopes of sphalerite within a single o… |
| 35.358 ± 0.109 | 35.281 / 35.435 | 2 | ore pyrite Mean and standard deviation recalculated from 2 samples, Table 1 (D-8, orebody no. 5; D-15, orebody no. 8), model ages 1.95 and 2.07 Ga. Unradiogenic lead, between the mantle and lower-crust curves: significant mantle contribution according to the authors. Consistent with Gao et al. (2018). | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 27.7 ± 5.7 ‰ | 21.7 / 37 ‰ | 12 | sulfides (pyrite, pyrrhotite, sphalerite, galena) Mean and standard deviation recalculated from 12 samples, Table 2: 5 pyrites, 2 pyrrhotites, 4 sphalerites, 1 galena. The text caps the range at 35.8 ‰ whereas the table, checked on the image, gives 37.0 ‰ for coarse pyrite D-8: table value kept. Coarse ores of orebodies no. 4 and 5 heavier than nodular and massive ores (21.7 to 23.9 ‰). | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −3.7 ± 1 ‰ | −4.8 / −2.6 ‰ | 4 | host dolomitic marbles and ore calcite Mean and standard deviation recalculated from 4 samples, Table 3, analyses of this study: host dolomitic marbles (D-4, D-9, D-19) and calcite from orebody no. 5 (D-11, -4.8 and 21.9 ‰). The five marbles of Li et al. (1986) are not included. | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 20.2 ± 4 ‰ | 16.5 / 25 ‰ | 4 | host dolomitic marbles and ore calcite Mean and standard deviation recalculated from 4 samples, Table 3, analyses of this study: host dolomitic marbles (D-4, D-9, D-19) and calcite from orebody no. 5 (D-11, -4.8 and 21.9 ‰). The five marbles of Li et al. (1986) are not included. | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
| 17.9 ± 0.1 ‰ | 17.9 / 18 ‰ | 3 | pyrite-vein and ore quartz Mean and standard deviation recalculated from 3 samples, Table 4 (D-7, D-14, DZK12/3-9). Quartzite: 14.2 ‰. In D-14, biotite 11.5 ‰ and phlogopite 12.0 ‰: 437 °C from the quartz-biotite pair, above homogenisation (347 °C), hence disequilibrium according to the authors. | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
δ30Si in ‰ (per mil) Values of the same system
Standard : NBS 28
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.1 ± 0.1 ‰ | −0.1 / 0 ‰ | 2 | pyrite-vein quartz Mean and standard deviation recalculated from 2 samples, Table 4, checked on the image (D-7, D-14). In D-14, biotite -0.4 ‰ and phlogopite -0.2 ‰: same enrichment order as for oxygen, differences too small for a geothermometer. | Ding et Jiang (2000), Stable isotope study of the Langshan polymetallic mineral district,… |
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Cite this page
IsoFind Atlas (2026). Dongshengmiao, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/dongshengmiao/ (accessed 2026-10-13).
@misc{isofind2026dongshengmiaoisotopesignature,
title = {Dongshengmiao, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/dongshengmiao/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13