Tuanjie Lake

Tuanjie Lake
Tuanjie Lake
	File:Sanhu.jpg The Sanhu Depression in 2014, with Tuanjie in the extreme SE (ESA)
Traditional Chinese	團結湖
Simplified Chinese	团结湖
Literal meaning	Solidarity Lake; Unity Lake
Hanyu Pinyin
Transcriptions
Standard Mandarin
Hanyu Pinyin	Tuánjié Hú
Wade–Giles	T‘uan-chieh Hu

Tuanjie Lake
Tuanjie Lake
团结湖 (Chinese)
	[mapframe not available on SimWiki] Interactive map of Tuanjie Lake
Location	Golmud County; Haixi Prefecture; Qinghai Province; China
Coordinates	36°43′50″N 95°21′42.5″E / 36.73056°N 95.361806°E
Type	Endorheic saline lake
Primary inflows	Shougong River
Basin countries	China
Surface area	6 km2 (2.3 sq mi)
Surface elevation	2,675 m (8,776 ft)

Tuanjie Lake is a lake in the southeastern Qarhan Playa north of Golmud in the Haixi Prefecture of Qinghai Province in northwestern China. It is fed from the south by the Shougong River. Like the other lakes of the surrounding Qaidam Basin, it is extremely saline.

Geography

Tuanjie Lake at the southern edge of the Qaidam subbasin^[1] in the eastern Qarhan Playa at an elevation of 2,675 m (8,776 ft) above sea level.^[2] It has an area of 6 km² (2.3 sq mi).^[2] It lies southeast of Dabusun Lake, south of Xiezuo Lake, and west of South Hulsan Lake^[1] and is fed by the intermittent stream of the Shougong River (收工河, Shōugōng Hé).^[3] Its depth usually does not exceed 1 m (3 ft 3 in).^[4]

Tuanjie's position at the south end of the playa means that its waters are relatively less influenced by the concentrated mineral springs along the playa's northern boundary.^[5] Nonetheless, the lake's brine is at or near saturation with calcite, halite, polyhalite, kieserite, and (importantly) carnallite,^[6] which is processed to produce potash for potassium-rich fertilizers and other uses.

Du Yongsheng; et al. (April 2018), "Evalutation of Boron Isotopes in Halite as an Indicator of the Salinity of Qarhan Paleolake Water in the Eastern Qaidam Basin, Western China", Geoscience Frontiers, 10 (1), Beijing: China University of Geosciences: 1–10, doi:10.1016/j.gsf.2018.02.016.
Spencer, Ronald James; et al. (1990), "Origin of Potash Salts and Brines in the Qaidam Basin, China" (PDF), Fluid-Mineral Interactions: A Tribute to H.P. Eugster, Special Publication No. 2, Geochemical Society.
Yu Ge; et al. (2001), Lake Status Records from China: Data Base Documentation (PDF), MPI-BGC Tech Rep, No. 4, Jena: Max Planck Institute for Biogeochemistry.
Yu Shengsong; et al. (2009), Chá'ěrhán Yánhé Zīyuán: Kěchíxù Lìyòng Yánjiū 察尔汗盐河资源: 可持续利用研究 [Qarhan Playa Resources: A Study of Sustainable Use] (PDF) (in 中文), Beijing: Kexue Chubanshe.
Zheng Mianping (1997), An Introduction to Saline Lakes on the Qinghai–Tibet Plateau, Dordrecht: Kluwer Academic Publishers, ISBN 9789401154581.