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Shetianqiao karst aquifer (aquifer A, Xikuangshan)

Hunan, Lengshuijiang, Xikuangshan district, China

Groundwater

Type
Groundwater

Xikuangshan antimony mine: 28 waters sampled in November 2013, including 23 springs of aquifers A, B and C, one mine water and four surface waters; arsenic up to 1274 µg/L in springs and 2545 µg/L in rivers, ascribed mainly to leaching of alkaline arsenic residues from the smelter and interaction with stibnite and silicified limestones. Sulfate (δ34S from -0.7 to +4.7 ‰ except B6) comes from sulfide oxidation, mixed with mine and surface waters; no link between δ34S and arsenic (Wen et al., 2018). Labels and 87Sr/86Sr from Table 1 of the published version. Coordinates not published (map only). Lower 220 m aquifer (micritic limestones, silicified limestones and shales) hosting the orebodies.

δ34S in ‰ (per mil) Values of the same system

Standard : V-CDT

ValueRangenMineral or matrixSource
2.8 ± 1.1 ‰1.9 / 4 ‰3dissolved sulfate
Mean and standard deviation recalculated from 3 analyses, +1.9 to +4.0 (A1 +4.0; A2 +1.9; A3 +2.4); 85 to 262 µg/L As.
Wen et al. (2018), Coupled S and Sr isotope evidences for elevated arsenic concentrations…

87Sr/86Sr isotope ratio, no unit Values of the same system

Standard : NIST SRM 987

ValueRangenMineral or matrixSource
0.70989 ± 0.000180.70968 / 0.710013dissolved strontium
Mean and standard deviation recalculated from 3 analyses, 0.70968 to 0.71001 (A1 0.70968; A2 0.70998; A3 0.71001); Sr from the silicified limestones and stibnite of the mineralised aquifer.
Wen et al. (2018), Coupled S and Sr isotope evidences for elevated arsenic concentrations…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Shetianqiao karst aquifer (aquifer A, Xikuangshan), isotope signatures. https://www.isofind.tech/isotopes/en/sites/aquifere-karstique-de-shetianqiao-aquifere-a-xikuangshan/ (accessed 2026-10-16).

@misc{isofind2026shetianqiaokarstaquiferaquife,
  title = {Shetianqiao karst aquifer (aquifer A, Xikuangshan), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/aquifere-karstique-de-shetianqiao-aquifere-a-xikuangshan/},
  note = {Accessed 2026-10-16}
}

Updated : 2026-10-16