Jinchangqing
Xiangyun County, Dali, Yunnan, China
PorphyriesAu
- Type
- Quartz-vein gold related to a quartz syenite porphyry
Cenozoic alkali-rich porphyry belt of Jinshajiang-Ailaoshan (western Yunnan): silicon of the mineralising fluids (silicified quartz, hemimorphite) lighter than that of the porphyries (0.0 to 0.4 ‰), two sources according to the authors. Deposit not located: the place cited in the source could not be tied to reliable coordinates.
δ30Si in ‰ (per mil) Values of the same system
Standard : NBS 28
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.2 ‰ | 1 | silicified quartz of gold veins Single analysis, XJ-39-1. Quartz phenocryst of the syenite porphyry 0.0 ‰ (XJ-37-2). | Liu et al. (2004), Geochemical trace of silicon isotopes of intrusions and ore veins rela… |
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Cite this page
IsoFind Atlas (2026). Jinchangqing, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/jinchangqing/ (accessed 2026-10-13).
@misc{isofind2026jinchangqingisotopesignatures,
title = {Jinchangqing, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/jinchangqing/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13