这样的形式往往是由冰川活动,,嗯,冰雪覆盖的大陆闻名。很多讨论的相关问题,怀疑论者:[在南极洲有三座金字塔吗?][1]这里[通用答案在维基百科][2]:>锥体高峰,有时在其最极端的形式称为冰川>角,一个角,尖锐的山峰的结果>冰斗侵蚀由于多个冰川从中央>点不同。它可能是冰原岛峰的一个例子。这是形成过程的(图张贴在Ace地理][3]:[!(形成冰川槽)[4]][4]不知道的细节出现峰值,作为我的理解有两种通用的冰蚀机制应用:——假设我们开始某种堆起地形,或者一个相对较小的突出在一个更大的大陆表面像南极洲。在非常寒冷的环境中,降水将落如雪,堆起来,变成冰。一般来说,更多的冰将形成任何一侧的丘庇护从阳光(北斜坡在北半球,南斜坡南部。最终冰将会被自己的重量压垮,磨损表面的方式,将倾向于夸大的原始几何丘。如果丘开始或发展略有下降斜率,冰流从后面和侧面墙壁会挖一个圆环或碗。 Depending on the starting conditions, your mound may develop several cirques; as ice grinds away at the lower elevations, you may wind up with a central, relatively slender peak with several ridges and valleys. - A second mechanism is having a glacier coming down a broader slope and cutting through an existing ridge. (Your ridgeline may begin with a triangular cross-section, or may have developed one from the glacial processes mentioned above.) At some point, ice from a higher elevation will flow across or through your ridgeline (just as a river would), eroding a gorge through the ridge. Inevitably, given enough material to work from, and even with a relatively smooth starting surface, the erosive power of ice will give you steep slopes and some pyramidal structures. [![Pyramidal peak graphic from BBC][5]][5] [1]: https://skeptics.stackexchange.com/questions/18955/are-there-three-pyramids-in-antarctica [2]: https://en.wikipedia.org/wiki/Pyramidal_peak [3]: http://www.acegeography.com/landforms-of-glacial-erosion.html [4]: https://i.stack.imgur.com/TsBC0.jpg [5]: https://i.stack.imgur.com/dGBgK.gif