Sedimentary features show that sedimentary structure generally occur in shallow lakes and creature genesis structure growing, waterplane rise→decline depositoinal cycle obviously.
积构造发育,生物富集,水进→水退积旋回明显。
Sedimentary features show that sedimentary structure generally occur in shallow lakes and creature genesis structure growing, waterplane rise→decline depositoinal cycle obviously.
积构造发育,生物富集,水进→水退积旋回明显。
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