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Objective The Simao Basin in Yunnan Province has developed Cretaceous evaporite-bearing clastic deposits,including the Mangang and Mengyejing Formations which were originally interpreted as fluvial and lacustrine deposits.The Mangang Fm.composed of well-rounded quartz sandstones,were commonly considered as the bottom part of the Mengyejing salt series.During last decades,drilling projects targeting to prospect solid potash deposits in the Mengyejing salt series consequently ceased when encountering these sandstones.The poor understanding of sedimentary environments leads to no breakthrough of prospecting solid potash deposits in the Simao Basin.Our
Objective The Simao Basin in Yunnan Province has developed Cretaceous evaporite-bearing clastic deposits, including the Mangang and Mengyejing Formations which were originally interpreted as fluvial and lacustrine deposits. The Mangang Fm.composed of well-rounded quartz sandstones, were commonly considered as the bottom part of the Mengyejing salt series. During last drilling, drilling projects targeting to prospect solid potash deposits in the Mengyejing salt series consequen ceased when encountering these sandstones. The poor understanding of sedimentary environments leads to no breakthrough of prospecting solid potash deposits in the Simao Basin .Our