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1·The areas covered by this material were so vast that the ice that deposited it must have been a continental glacier larger than Greenland or Antarctica.

这种物质覆盖的区域十分巨大，因此使其沉积下来的冰一定是比格陵兰岛或南极洲更大的大陆冰川。

2·Beginning 25,000 years ago, the Bow Valley glacier ground through the region before being overtaken by a continental glacier.

从2万5千年前开始，弓河谷冰川穿过了整个峡谷，之后被大陆冰川所取代。

3·Greenland and Antarctica are covered by continental glaciers. Pieces at the ocean edge of a continental glacier break off and become icebergs floating on the ocean.

格陵兰和南极洲为大陆冰川所覆盖。大陆冰川靠海洋的边缘部分发生破裂，变成漂浮在海洋中的冰山。

4·The continental shelf here is about 600 meters (2,000 feet) deep, and as the warm water from the open ocean meets the shelf, it continues to flow toward land and rises beneath the floating glacier.

在这个地方的大陆架是大约600米深，当从外面来的暖流碰上大陆架，就会沿大陆架向上升到浮着的冰川下面。

5·The continental shelf here is about 600 meters (2, 000 feet) deep, and as the warm water from the open ocean meets the shelf, it continues to flow toward land and rises beneath the floating glacier.

在这个地方的大陆架是大约600米深，当从外面来的暖流碰上大陆架，就会沿大陆架向上升到浮着的冰川下面。

6·It is the wildest of the wild, a glacier-scoured terrain unmarred by roads, tugged at by wind, on the shoulder of the Continental Divide.

它是荒野中的荒野，狂风撕扯着这片位于大陆分水岭一侧的土地，被远古冰川打磨出来的地形仍未刻上道路的疤痕。