这个锥体山可能是如何形成的?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 08 - 17 - t23:19:35z //www.hoelymoley.com/feeds/question/12011 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/12011 11 这个锥体山可能是如何形成的? 查理 //www.hoelymoley.com/users/10723 2017 - 08 - 06 - t14:12:34z 2021 - 07 - 06 - t06:58:42z < p >怎么这个锥体形成了峰值在南极吗?所知甚少,据我所知,但我们所知道的是,远离任何现有的板块边界和形状也高度非典型,因此我存在上述问题。< / p > < p >问题在两个潜在基地:< / p > < p >)是如何形成远离板块边界?B)形式在这个不寻常的形状如何?

Aptly named,'The Pyramid'

https://en.wikipedia.org/wiki/The_Pyramid_(Antarctica)

//www.hoelymoley.com/questions/12011/-/12012 # 12012 15 由jeffronicus回答这个锥体山可能是如何形成的? jeffronicus //www.hoelymoley.com/users/7314 2017 - 08 - 06 - t17:43:17z 2017 - 08 - 06 - t20:44:42z < p >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:< a href = " https://skeptics.stackexchange.com/questions/18955/are-there-three-pyramids-in-antarctica " >有三座金字塔在南极洲吗?< / > < / p > < p >的< a href = " https://en.wikipedia.org/wiki/Pyramidal_peak " rel = " noreferrer " >通用答案在维基百科< / >:< / p > < blockquote > < p >锥体高峰,有时在其最极端的形式称为冰川角,一个角,尖锐的山峰圆环侵蚀的结果由于多个冰川从中心点不同。它可能是冰原岛峰的一个例子。< / p > < /引用> < p >的< a href = " http://www.acegeography.com/landforms-of-glacial-erosion.html " rel = " noreferrer " >上发表的形成过程图Ace地理< / >:< a href = " https://i.stack.imgur.com/TsBC0.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/TsBC0.jpg " alt = "形成冰川槽" > < / > < / p > < p >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:< / p > < ul > <李> < p >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。根据堆的起始条件,可能开发几个冰斗; 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

    //www.hoelymoley.com/questions/12011/-/13005 # 13005 7 答案由Camilo Rada这个锥体山可能是如何形成的? 卡米洛·Rada //www.hoelymoley.com/users/11908 2018 - 01 - 02 - t17:45:17z 2019 - 04 - 13 - t02:38:47z < p >山埃文斯山(3950米),位于南极洲内的哨兵范围(S 78.30698°, W 85.91698°),欧洲大陆最高的山脉。< / p > < p > < a href = " https://i.stack.imgur.com/cZWNK.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/cZWNK.png " alt = "在这里输入图像描述" > < / > < / p > < p >(地图由@KeithMcClary见注释)< / p > < p >一般来说,地质特征被侵蚀平滑(由水、冰川或风)。这些山峰是如此之高,从未被冰川覆盖面积太冷,液态水几乎不存在。因此,没有被水侵蚀(或冻融cicl),没有风,因为缺乏尘埃/砂颗粒(风本身并不侵蚀,腐蚀粒子携带)。因此,这些山是如此锋利的由于缺少侵蚀。比如任何岩石:如果你把它成碎片,这些碎片将有锐利的边缘,没有侵蚀这些锋利的边缘将持续下去。同样,在一个更大的规模,大幅隆起和边缘山脉可以持续承受时间的传递。< / p > < p > < a href = " https://i.stack.imgur.com/ySiwh.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/ySiwh.jpg " alt = "这是我批山上营地,2005ω的基础映射远征期间,埃文斯山是在后台“> < / > < / p > < p >这是我批山上营地,2005ω的基础映射探险期间,山埃文斯是在后台< / p >
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