最后一次冰川作用的漂浮物沉积在最近的其中一个地质时期——更新世，这段时期从180万年前持续到1万年前。
The drift of the last glaciation was deposited during one of the most recent epochs of geologic time, the Pleistocene, which lasted from 1.8 million to 10,000 years ago.
最后，阿加西和其他人说服了地质学家和普通大众，一个巨大的大陆冰川作用已经把极地冰帽延伸到了现在享受温带气候的地区。
Eventually, Agassiz and others convinced geologists and the general public that a great continental glaciation had extended the polar ice caps far into regions that now enjoy temperate climates.
它就像一把地质锉刀一样通过刮、刨等作用来磨损冰川流过的表面。
It ACTS as a geologic rasp, scratching, gouging and generally abrading the surfaces over which the glacier rides.
它就像一把地质锉刀一样通过刮、刨等作用来磨损冰川流过的表面。
It ACTS as a geologic rasp, scratching, gouging and generally abrading the surfaces over which the glacier rides.
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