冰碛层 drift beds; drift sheet; driftsheet; glacial series; lodgement; till sheet; tillite 冰碛的 morainal; morainic ..
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The problem with ascribing all tillites to glaciation, however, is that tillite deposits are widespread in Precambrian sediments.
然而，使所有的黑土形成冰川作用的问题是，在前寒武纪沉积物中广泛分布有黑土。
In addition, the fabric characteristics of modern till are also of importance to the study of the ancient till and tillite.
此外，现代冰碛物的组构特征，对于研究古冰碛和冰碛岩也有着重要的意义。
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