Gucheng formation which is the early deposit of Guanzhuang group is composed mainly of conglomerate rock with conglomerate-bearing sandstone and sandy mudstone.

  • 其早期形成的固城组以砾岩为主,夹含砾砂岩及砂质泥岩。

  • 互联网摘选 2025-01-20 11:37:58

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