冰碛物组成的终碛垅，代表了在冰川发育的不同阶段冰斗冰川下达的空间位置。
On composing of glacial drifts, the terminal moraines represent the space positions which the cirques glaciers reached on the various stages of the development of glaciation.
中更新世冰川水系与东流水系阶段；
While a glacial drainage system and flowing eastward drainage system developed during the Middle Pleistocene.
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