如今构成加拿大北极群岛的岩石在数百万年以前只是一个叫Pangaea(泛古陆)的超大陆西北海岸以外的海底沉淀物。
Rocks that now make up the northernmost islands of the Canadian Arctic formed millions of years ago as seafloor sediments off the northwestern coast of a supercontinent called Pangaea.
这些冻原植物花粉形态的研究为恢复北极地区古植被和古气候的研究，提供了有价值的对比资料和依据。
Investigation on pollen grains of tundra plants can provide significant data for comparative study of fossil pollen and for reconstruction of paleovegetation and paleoclimate in the Barrow area.
野果林的区系发生是多方面的，主要有安加拉成分、古北极成分、古地中海成分、华夏区系成分和新疆本土成分。
The origin of the wild fruit forest was various, including the floristic elements from Angara, Old Arctic, Old Mediterranean, Cathaysian and Xinjiang.
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