洞穴遗址
洞穴遗址-
山东一旧石器时代洞穴遗址
A PALEOLITHS found in one cave in Shantung
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中、晚更新世洞穴古人类遗址中，多有与遗物有明确层位关系的钙板或其它形式的钟乳石类碳酸岩，是测定铀系年龄的理想材料。
In many of the karstic caves once occupied by Middle or Late Pleistocene hominids , there exist travertine layers and / or stalagmitic carbonates of other forms , which are suitable for U-series dating .