Xujiashan
Hubei, Tongshan County, China
Other hydrothermalSb
- Type
- Stibnite hosted by marine carbonates (Upper Sinian)
Largest antimony deposit of Hubei (383,400 t at 3.78 % Sb), in marine carbonates of the Doushantuo and Dengying formations (Upper Sinian); orebodies controlled by the F1 normal fault, stibnite with calcite and quartz. Shen et al. (2011): pre-mineralisation calcite at 0.7096-0.7097 (Sinian seawater, Sr from 2645 to 8174 ppm), syn-mineralisation calcite more radiogenic (0.7109 to 0.7154, Sr from 785 to 2563 ppm); stibnite in two Pb groups: radiogenic group A (206Pb/204Pb 18.874 to 19.288, negative model ages) drawn from the Sinian carbonates, less radiogenic group B (17.882 to 18.171, model ages from 392 to 636 Ma) drawn from the Mesoproterozoic Lengjiaxi Group basement: epigenetic rather than reworked sedimentary deposit. Coordinates: centre of the published frame (29°46'42"-29°47'15" N, 114°36'43"-114°37'23" E).
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.709634 ± 0.000077 | 0.709552 / 0.709705 | 3 | pre-mineralisation calcite Mean and standard deviation recalculated from 3 analyses, 0.709552 to 0.709705 (XJS-10 0.709705; XJS-11 0.709646; XJS-42 0.709552). Level +323 m; Sr from 2645 to 6740 ppm; close to Sinian seawater: host-rock Sr. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
| 0.714057 ± 0.001463 | 0.710891 / 0.715369 | 15 | calcite coeval with stibnite Mean and standard deviation recalculated from 15 analyses, 0.710891 to 0.715369 (XJS-1 0.712409; XJS-2 0.710891; XJS-3 0.715043; XJS-6 0.715229; XJS-7 0.714724; XJS-8 0.715222; XJS-13 0.714333; XJS-14 0.714433; XJS-16 0.715369; XJS-27 0.714422; XJS-30 0.711699; XJS-48 0.714983; XJS-50 0.712300; XJS-52 0.714690; XJS-59 0.715108). Levels +323 and +363 m; Sr from 785 to 2563 ppm; radiogenic Sr supplied by a fluid that circulated through the Lengjiaxi Group basement. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 19.104 ± 0.15 | 18.874 / 19.288 | 6 | stibnite, group A (radiogenic lead) Mean and standard deviation recalculated from 6 analyses, 18.874 to 19.288 (XJS-5 19.185; XJS-15 18.991; XJS-16 19.183; XJS-18 19.288; XJS-19 18.874; XJS-37 19.102). Model ages from -258 to +3 Ma: lead drawn from the Sinian carbonates according to the authors. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
| 17.997 ± 0.101 | 17.882 / 18.171 | 10 | stibnite, group B (unradiogenic lead) Mean and standard deviation recalculated from 10 analyses, 17.882 to 18.171 (XJS-27 18.171; XJS-54 17.891; XJS-56 18.016; XJS-61 18.147; XJS-63 17.968; XJS-64 17.882; XJS-65 17.913; XJS-66 18.054; XJS-67 17.966; XJS-69 17.957). Model ages from 392 to 636 Ma (495 ± 65 Ma on average): lead drawn from the Mesoproterozoic Lengjiaxi basement according to the authors. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.745 ± 0.037 | 15.708 / 15.805 | 6 | stibnite, group A (radiogenic lead) Mean and standard deviation recalculated from 6 analyses, 15.708 to 15.805 (XJS-5 15.741; XJS-15 15.708; XJS-16 15.805; XJS-18 15.769; XJS-19 15.737; XJS-37 15.712). Model ages from -258 to +3 Ma: lead drawn from the Sinian carbonates according to the authors. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
| 15.626 ± 0.044 | 15.555 / 15.686 | 10 | stibnite, group B (unradiogenic lead) Mean and standard deviation recalculated from 10 analyses, 15.555 to 15.686 (XJS-27 15.644; XJS-54 15.555; XJS-56 15.633; XJS-61 15.666; XJS-63 15.620; XJS-64 15.681; XJS-65 15.612; XJS-66 15.686; XJS-67 15.577; XJS-69 15.589). Model ages from 392 to 636 Ma (495 ± 65 Ma on average): lead drawn from the Mesoproterozoic Lengjiaxi basement according to the authors. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.793 ± 0.144 | 38.642 / 39.001 | 6 | stibnite, group A (radiogenic lead) Mean and standard deviation recalculated from 6 analyses, 38.642 to 39.001 (XJS-5 38.799; XJS-15 38.659; XJS-16 39.001; XJS-18 38.922; XJS-19 38.733; XJS-37 38.642). Model ages from -258 to +3 Ma: lead drawn from the Sinian carbonates according to the authors. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
| 38.133 ± 0.128 | 37.95 / 38.34 | 10 | stibnite, group B (unradiogenic lead) Mean and standard deviation recalculated from 10 analyses, 37.950 to 38.340 (XJS-27 38.151; XJS-54 37.950; XJS-56 38.226; XJS-61 38.340; XJS-63 38.079; XJS-64 38.076; XJS-65 38.049; XJS-66 38.325; XJS-67 38.028; XJS-69 38.101). Model ages from 392 to 636 Ma (495 ± 65 Ma on average): lead drawn from the Mesoproterozoic Lengjiaxi basement according to the authors. | Shen et al. (2011), Strontium and lead isotopic study of the carbonate-hosted Xujiashan a… |
Deposits of the same type
- Dahutang (Shimensi ore block) China
- Hukeng China
- Fenglin China
- Banxi (antimony) China
- Lengshuikeng China
- Dengfuxian (Xiangdong) China
- Xiejiashan (Longshan) China
- Huangsha (Tieshanlong) China
Cite this page
IsoFind Atlas (2026). Xujiashan, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/xujiashan/ (accessed 2026-10-19).
@misc{isofind2026xujiashanisotopesignatures,
title = {Xujiashan, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/xujiashan/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19