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Somme River (Lakkor Co basin)

Tibet (Xizang), Ngari Prefecture, Shiquanhe-Lakkor Co-Yongzhu-Jiali ophiolite melange zone, China

Rivers and surface water

Type
River or surface water

Boron-rich salt lake on the ophiolite melange zone (Jurassic MORB- and arc-type basalts) on the southern flank of the Bangong-Nujiang suture; sampled in winter 2015 (Li et al., 2022). Coordinates not published (map between 31°50' and 32°10' N, 83°45' and 84°15' E). Feeder river from the east; δ11B falling from -9.97 to -11.15 ‰ after crossing the carbonate deposits, which release light boron.

δ11B in ‰ (per mil) Values of the same system

Standard : NIST SRM 951

ValueRangenMineral or matrixSource
−10.56 ± 0.83 ‰−11.15 / −9.97 ‰2river water (dissolved boron)
Mean and standard deviation recalculated from 2 analyses, -11.15 to -9.97 (SMR-02 -9.97; SMR-01 -11.15). 2.69 and 2.54 mg/L B, pH 8.0 and 7.9.
Li et al. (2022), Boron isotope geochemistry of the Lakkor Co salt lake (Tibet) and its g…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Somme River (Lakkor Co basin), isotope signatures. https://www.isofind.tech/isotopes/en/sites/riviere-somme-bassin-de-lakkor-co/ (accessed 2026-10-19).

@misc{isofind2026sommeriverlakkorcobasinisotop,
  title = {Somme River (Lakkor Co basin), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/riviere-somme-bassin-de-lakkor-co/},
  note = {Accessed 2026-10-19}
}

Updated : 2026-10-19