However, during the Pleistocene glacial epoch, the melting water of the Pleistocene glaciers could form some small scale karst caves along the margin of the glacial valley in the limestone mountains.

  • 更新世冰期在灰岩山地冰川槽谷的边缘,冰川融水作用亦可发育小型洞穴。

  • 互联网摘选 2025-01-19 22:18:38

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