Sedimentary features show that sedimentary structure generally occur in shallow lakes and creature genesis structure growing, waterplane rise→decline depositoinal cycle obviously.
湖泊沉
构造发育，生物富集，水进→水退沉
。
Sedimentary features show that sedimentary structure generally occur in shallow lakes and creature genesis structure growing, waterplane rise→decline depositoinal cycle obviously.
湖泊沉构造发育，生物富集，水进→水退沉。
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