< p >,这三个特征是平行的可能有些巧合,虽然我们可以怀疑,构造作用影响了他们的形态。地壳下“北冰洋”号是世界上最难理解的政权。< / p > < p >这是改变,任何一个国家可以证明他们国家的大陆架延伸沿一个或多个脊,据联合国,要求地下石油和矿产。候选人的国家包括俄罗斯、加拿大、挪威、美国、丹麦和格陵兰岛/。因此,最近的地震和地质工作,尽管有些报告是微妙的,以促进民族主义主张。< / p > < p > <强>α岭< /强>是一个火山山脊扩展大陆从埃尔斯米尔岛,加拿大。< / p > < p > < >强罗蒙诺索夫海岭< /强>似乎是古老的大陆地壳和可能是加拿大的大陆架的延伸。< / p > < p > < >强Gakkel岭< /强>伴随蔓延海底裂谷从大西洋中脊的向北延伸。它有最慢的分歧的世界上任何大洋中脊(每年不到一厘米)。< / p > < p >这是三个出现在截面脊:< / p > < p > < img src = " https://i.stack.imgur.com/xTmVs.png " alt = "在这里输入图像描述" >(来源:< a href = " http://en.wikipedia.org/wiki/File: BrnBld_BeringToFram.svg rel = " nofollow noreferrer " > http://en.wikipedia.org/wiki/File BrnBld_BeringToFram.svg < / >) < / p > < p > <强>有两盆< /强>在北极。最接近欧洲,部分<强>欧亚盆地< / >强,北时形成的中大西洋海脊增长,成为Gakkel岭。 It divided a long, narrow strip of continental crust from the Barents Shelf, the Lomonosov Ridge. This action resulted in Lomonosov's parallel orientation to the Gakkel. Since the Alpha Ridge is further to the west and within the Amerasian Basin, it might be a stretch to suggest it is related to the Gakkel. It's parallel orientation is more likely an accident and in time it may rotate with respect to the other two ridges. For an accessible and lucid description of the Arctic's tectonics, this piece by Bernard Coakley in the New York Times is quite good: http://scientistatwork.blogs.nytimes.com/2011/09/15/northern-lights-on-the-midnight-watch.