Lame (Lamo, Dachang ore field)
Dachang ore field, Nandan County, Hechi, Guangxi, China
SkarnsZn-Cu (Sn)
- Type
- Upper Devonian sulfide mineralisation at the contact of the Longxianggai granite
Dachang field deposit in the Upper Devonian (Wuzhishan Formation), where the small Longxianggai biotite granite crops out (0.19 km² at surface, 21 km² at depth). The narrow sulfide δ34S range, close to that of the granite, points to homogeneous magmatic sulfur (Fan et al., 2004). 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 |
|---|---|---|---|---|
| −0.43 ‰ | 4 | sphalerite Published mean of 4 analyses, samples 21 to 24. The text gives -0.43 to +1.8 ‰ overall. 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… | |
| 1.65 ‰ | 2 | pyrrhotite Published mean of 2 analyses, samples 21 to 24. The text gives -0.43 to +1.8 ‰ overall. 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… | |
| −0.1 ‰ | 1 | pyrite Single analysis, samples 21 to 24. The text gives -0.43 to +1.8 ‰ overall. 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… | |
| 1.2 ‰ | 1 | arsenopyrite Single analysis, samples 21 to 24. The text gives -0.43 to +1.8 ‰ overall. 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… | |
| 1.8 ‰ | 1 | chalcopyrite Single analysis, samples 21 to 24. The text gives -0.43 to +1.8 ‰ overall. 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… | |
| 1.8 ‰ | 1 | jamesonite Single analysis, samples 21 to 24. The text gives -0.43 to +1.8 ‰ overall. 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… | |
| −0.2 ‰ | 1 | pyrite from the Longxianggai granite Single analysis, sample LM9; local magmatic reference. 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
- Nanyangtian China
- Dulong China
- Gaosong (Gejiu district) China
- Laochang (Gejiu district) China
- Gejiu tin district (unspecified origin) China
- Xianghualing China
- Shizhuyuan China
- Beiya China
Cite this page
IsoFind Atlas (2026). Lame (Lamo, Dachang ore field), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/lame-lamo-champ-minier-de-dachang/ (accessed 2026-10-13).
@misc{isofind2026lamelamodachangorefieldisotop,
title = {Lame (Lamo, Dachang ore field), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/lame-lamo-champ-minier-de-dachang/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13