Discovery of the Ca-Cl type brine in deep aquifers and implications for the shallow giant glauberite deposits in the Lop Nur playa, Tarim Basin, NW China

1.Objective Lop Nur is currently one of the world’s largest playa and located in the easternmost of the Tarim Basin,northwestern China.It developed unique giant glauberite deposits during the Quaternary,of which analogue with such a scale deposit is rarely seen around the world.Moreover,potassium-rich brine hosted in these glauberite intercrystalline contains a resource of KCl up to 0.25×10^(9) t.