这一升温速度远高于约1.2万年前的最后一次冰川消退。
That rate of heating is far greater than during the last glacial retreat some 12,000 years ago.
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.
弓湖所处的山谷是由超过1万年的冰川雕刻而成。
The valley where Bow Lake sits was carved by glaciers more than 10, 000 years ago.
直到大约3400万年前，才有小型的冰川开始在南极大陆的山顶形成。
It wasn't until around 34 million years ago that the first small glaciers formed on the tops of Antarctica's mountains.
伊伊马尼山的冰川估计已经存在了成千上万年了。
The glaciers on Illimani are estimated to have been there for thousands of years.
地球目前的气候状态很是不稳定；在过去的70万年间，我们的星球大约经历了7次冰川时期。
The earth's current climate is something of an anomaly; in the past 700, 000 years, there have been at least seven major episodes of glaciers spreading over much of the planet.
地球目前的气候状态很是不稳定；在过去的70万年间，我们的星球大约经历了7次冰川时期。
The earth's current climate is something of an anomaly; in the past 700,000 years, there have been at least seven major episodes of glaciers spreading over much of the planet.
粒雪，万年雪：经过一个夏季的溶化期但仍未成冰川的粒状且部分沉固的雪。
Firn: granular partially consolidated snow that has passed through one summer melt season but is not yet glacial ice.
是第四纪冰川遗留下来的古老树种，在地球上已有250万年的历史。
Is a legacy of the Quaternary glacial ancient trees on Earth over 250 million years of history.
这个坑是在大约2万年前由一座消退的冰川留下的，周围沉积着数以千计的光滑鹅卵石，看起来“就像一只母鸡在下蛋，”赫西说。
It had been carved out about 20,000 years earlier by a retreating glacier that deposited thousands of beach-smooth cobblestones around the hole, "like a hen laying eggs," Mr. Hussey said.
他们警告说，1.1万年前只是冰川消退，现在可能开始整个地球范围的转变。
They warn of a planetary transformation comparable to the retreat of the glaciers more than 11,000 years ago.
他们警告说，1.1万年前只是冰川消退，现在可能开始整个地球范围的转变。
They warn of a planetary transformation comparable to the retreat of the glaciers more than 11,000 years ago.
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