Kengma (Dachang ore field)
Dachang ore field, Nandan County, Hechi, Guangxi, China
Other hydrothermalSn-Zn-Sb-Cu
- Type
- Stratiform bodies and tin-polymetallic veins in black shale
Deposit in the eastern part of the Dachang field: stratiform bodies in Lower Devonian black shale and mudstone, and veins cutting the Lower and Middle Devonian; cassiterite, pyrrhotite, sphalerite, pyrite, quartz, calcite and fluorite (Fan et al., 2004). Strongly negative sulfur, mainly biogenic according to the authors. Coordinates of the Dachang ore field, to within a few kilometres. Indicative coordinates.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −10.8 ‰ | 8 | sphalerite Published mean of 8 analyses, samples 60 to 67 (ore). Values re-read from the image of Table 5: the text layer drops minus signs. | Fan et al. (2004), Geochemistry and origin of tin-polymetallic sulfide deposits hosted by… | |
| −9.7 ‰ | 8 | pyrrhotite Published mean of 8 analyses, samples 60 to 67 (ore). Values re-read from the image of Table 5: the text layer drops minus signs. | Fan et al. (2004), Geochemistry and origin of tin-polymetallic sulfide deposits hosted by… | |
| −10.1 ‰ | 2 | pyrite Published mean of 2 analyses, samples 60 to 67 (ore). Values re-read from the image of Table 5: the text layer drops minus signs. | Fan et al. (2004), Geochemistry and origin of tin-polymetallic sulfide deposits hosted by… | |
| −9.6 ‰ | 6 | arsenopyrite Published mean of 6 analyses, samples 60 to 67 (ore). Values re-read from the image of Table 5: the text layer drops minus signs. | Fan et al. (2004), Geochemistry and origin of tin-polymetallic sulfide deposits hosted by… | |
| −9.51 ‰ | 1 | chalcopyrite Single analysis, samples 60 to 67 (ore). Values re-read from the image of Table 5: the text layer drops minus signs. | Fan et al. (2004), Geochemistry and origin of tin-polymetallic sulfide deposits hosted by… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Kengma (Dachang ore field), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/kengma-champ-minier-de-dachang/ (accessed 2026-10-13).
@misc{isofind2026kengmadachangorefieldisotopes,
title = {Kengma (Dachang ore field), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/kengma-champ-minier-de-dachang/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13