冰岛北部内陆景观中的Aldeyjarfoss瀑布 Aldeyjarfoss waterfall in northern Iceland's interior landscape (© Jim Patterson/Tandem Stills + Motion)
冰岛北部内陆景观中的Aldeyjarfoss瀑布 Aldeyjarfoss waterfall in northern Iceland's interior landscape (© Jim Patterson/Tandem Stills + Motion)
Behold the mighty Aldeyjarfoss
In waterfall-dense Iceland, it says something that Aldeyjarfoss is considered one of the most beautiful sights in the country. Fed by Iceland's largest ice cap, the 65-foot falls are flanked by distinctive hexagon-shaped basalt columns seemingly carved by some Norse god.
Okay, they may not have their origins with Odin's kin. Geologists will tell us that they're formed as lava flows cool and buckle under stress, with cracks penetrating deep into newly formed rock. The path of least resistance places these cracks at 120-degree intersections. So as cracks run deeper, their shape averages out to a near-perfect hexagon—exposing neatly geometric columns when the rock face eventually shears off.
看看强大的阿尔迪亚福斯
在瀑布密布的冰岛,阿尔迪亚尔福斯被认为是该国最美丽的景点之一。由冰岛最大的冰盖支撑,65英尺高的瀑布两侧是独特的六边形玄武岩柱,似乎是由一些挪威神雕刻而成。
好吧,他们可能不是奥丁的亲戚。地质学家会告诉我们,它们是在熔岩流冷却并在应力作用下弯曲时形成的,裂缝深入新形成的岩石。阻力最小的路径将这些裂缝放置在120度交叉处。因此,当裂缝越深,当岩石表面最终剪切时,它们的形状平均为接近完美的六边形,露出整齐的几何柱。
评论已关闭