1. The cap rocks are lacustrine mudstone and gypsiferous.
盖层为湖相泥岩和含膏泥岩。
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2. And every lithological member is composed of the lower gypsiferous salt bed and the upper terrigenous clastic rock, which belongs to the lacustrine sediment.
该组可划分为三个岩性段，每个岩性段均由下部膏盐层、上部陆源碎屑岩组成，均属湖泊沉积。
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3. And every lithological member is composed of the lower gypsiferous salt bed and the upper terrigenous clastic rock, which belongs to the lacustrine sediment.
