珊瑚礁和珊瑚环礁只是火山岛吗?-地江南体育网页版球科学堆栈交换江南电子竞技平台 最近30个来自www.hoelymoley.com 2023 - 04 - 05 - t23:51:42z //www.hoelymoley.com/feeds/question/4745 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/4745 8 珊瑚礁和珊瑚环礁只是火山岛吗? 奥里利乌斯 //www.hoelymoley.com/users/2830 2015 - 04 - 24 - t09:58:42z 2015 - 04 - 24 - t14:13:19z

珊瑚礁和珊瑚环礁只是不同类型的火山岛吗?当我听到“火山岛”这个词时,我想到的是莫雷阿岛(Moorea)或夏威夷等地,但归根结底,珊瑚礁和珊瑚环礁是在火山的残余物上建立基础的,对吗?< / p >

//www.hoelymoley.com/questions/4745/-/4748#4748 11 珊瑚礁和珊瑚环礁只是火山岛吗? 马特·霍尔 //www.hoelymoley.com/users/28050 2015 - 04 - 24 - t14:03:26z 2015 - 04 - 24 - t14:03:26z

不,不一定是火山。

这两个术语,以及许多其他术语,如边缘礁堡礁,只是形态学上的-与形状有关。它们往往不暗示任何与基因有关的东西——与起源有关。(描述和解释的分离是地球科学等观测科学中的一个重要原则)

Cay有时更广泛地用于一个岛屿或一组岛屿。在某些情况下,如Cay Sal Bank,巴哈马群岛,该特征实际上是一个环礁:一个环形礁。萨尔礁是世界上最大的环礁之一,不是在火山上形成的

Charles Darwin hypothesized in his monograph The structure and distribution of coral reefs that atolls form when a fringing reef around a volcanic islands grows as the volcano subsides:

An atoll forming on a volcano

Indeed, Darwin turned out to be correct that atolls often have a volcanic origin, but Cay Sal Bank is a counter-example. I think it's fair to say that most people would assume that origin though, and lots of Internet definitions , so it's notable if an atoll formed some other way, e.g. on a non-volcanic seamount (see Keating et al., 1987, in Seamounts, Islands, and Atolls, AGU), or by island subsidence due to dissolution.

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