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把古老的冰碛类似岩与现代和更新世冰堆石(冰碛)和假冰堆石进行比较是鉴定冰碛岩的主要方法,确定古冰碛岩较现代更新世冰碛岩复杂,因为在古老地层中缺失或只有很少量的古地貌和古生物特征,而这些特征对鉴定现代和更新世冰碛岩起着很大作用。另外,其它一些反映冰碛成因特征的如条痕,角砾的定向排列等可能在后来的破坏作用和变质作用中被消灭或发生强烈变形。这对确定前寒武纪冰碛类似岩的成因产生了
Comparing ancient moraine-like rocks with modern and Pleistocene rock moraines and fake ice rock is the primary method for identifying moraine rocks and confirms the complexity of the pale-moraine rocks over the modern Pleistocene moraines because Lack of or only a small number of palaeogeomorphology and palaeontology in the ancient formations play a significant role in the identification of modern and Pleistocene moraine rocks. In addition, other strata, such as streaks and breccias, that reflect the genetic characteristics of moraines may be destroyed or deformed greatly in subsequent destructive and metamorphic processes. This is for determining the origin of similar Precambrian moraine rocks