这些火成岩李四光环受欢迎的瓦胡岛,夏威夷徒步旅行吗?- 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 - 07 - 07 - t14:37:41z //www.hoelymoley.com/feeds/question/21089 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/21089 2 这些火成岩李四光环受欢迎的瓦胡岛,夏威夷徒步旅行吗? user3424230 //www.hoelymoley.com/users/22276 2021 - 04 - 13 - t14:08:24z 2021 - 05 - 10 - t11:20:09z < p >我徒步Lanikai碉堡小道(< a href = " https://www.google.com/maps/place/Lanikai +碉堡/ @21.3893391,-157.716528,16.75 z / data = ! 4 m13 ! 1 m7 ! 3 m6 ! 1 s0x7c0014f892682f7f: 0 xec50e2c96a16e2b1 ! 2 slanikai +海滩! 3 b1 ! 8平方米! 3 d21.3925378 ! 4 d - 157.7151208 ! 3 m4 ! 1 s0x7c0014f7ab4d2761:0xc586727ccfefbd4a ! 8平方米! 3 d21.3855953 ! 4 d - 157.7166534”rel = " nofollow noreferrer " >欧胡岛,嗨< / >)。我注意到在火成岩侵蚀同心圆的中心。我找不到这些环的地质原因。他们是李四光戒指吗?有几个实例(~ 20)我看到的徒步旅行。< / p > < p > < a href = " https://i.stack.imgur.com/OvPtt.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/OvPtt.jpg " alt = "同心圆在瓦胡岛的火成岩,你好。”/>

//www.hoelymoley.com/questions/21089/-/21092 # 21092 2 回答通过为这些火成岩user22279李四光环受欢迎的瓦胡岛,夏威夷远足吗? user22279 //www.hoelymoley.com/users/0 2021 - 04 - 13 - t20:24:00z 2021 - 04 - 14 - t12:59:54z

Not knowing the setting and judging from the image alone in this trampled environment, I think we're looking at a form of chemical weathering called "spheroidal weathering".

The gist is this (from the linked wiki page): Penetrating water alters the bed-rock along cracks or joints, causing volume changes between altered and unaltered parts. These differences result in the formation of spheroidal layers that are removed by erosion (or trampling), leaving a central relatively unaltered boulder/pebble.

Liesegang rings are somewhat enigmatic, not sure if the term is applicable here.

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