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    Study of minerals in potassium-bearing strata of Lop Nur salt lake,Xinjiang,by means of scanning electron microscopy
    Xiaoming SunMrl Key
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    Keywords:
    Potash
    Mineral resource classification
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    Geological Studies and Exploration
    Salt crust mineralogy and geochemical evolution of the Salt Lake (Tuz Gölü), Turkey
    Scientific Research and Essays (2010)
    Özen KILIÇAhmet Mahmut KILIÇ
    The Salt Lake (Tuz Golu) is the second largest lake in Turkey and also is one of the greatest salty lakes in the world. Salt Lake has a great salt potential. The salt was produced in large quantities on saltpans in the Salt Lake. In this study, a detailed mineralogical investigation was carried out with salt crust samples and unconsolidated muddy sediments, below the salt crust collected from the KaldA±rA±m Saltpan in the Salt Lake. The salt crust and below the salt crust (1 - 20 cm) evaporate mineralogy were determined by X-ray diffraction method. The analysis results show that the salt crust was in composition of halite, gypsum and kieserite; muddy sediments and below the salt crust which was in the composition of gypsum, magnesite, thenardite, polyhalite, aragonite and montmorillonite. The mineralogical variations of the participated salts indicated that, the chemical compositions of brines vary significantly between the Na-K-Mg-Ca-Cl type and the Na-K-Mg-Cl-SO4 type.   Key words: Salt lake, solar evaporation, evaporates, salt crust, XRD, SEM.
    Halite
    Citations (18)
    Potassium-rich brine deposit in Lop Nor basin, Xinjiang, China
    Scientific Reports (2018)
    Mingguang SunLichun Ma
    Lop Nor potash deposit is the largest sulfate-type liquid potassium salt deposit in China, consisting of three areas: Xinqing platform, Luobei depression, and Tenglong platform. In this study, the geological background, basin structure, and fracture system of the deposit, along with the brine storage size of the three ore bodies are introduced in detail, using underground brine elevation models of the mining areas. We collected 91 samples of brine from long-term observation boreholes in the Lop Nor ore district, and analyzed their ion contents. The KCl content of the brine varies from 1% to 1.45% and that of B2O3 varies from 1900 to 4500 mg/L, which are higher than the cut-off for Chinese industrial mining grades. The spatial distributions of KCl and B2O3 contents in different ore beds were plotted, and the distributions of different grades of K+ and B3+ were revealed.
    Brine
    Potash
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