Abstract

Secondary dolomitization of reef formations is a fairly common phenomenon. Regardless of reef formation in the arid or humid climate, both isolated reefs and reefs of asymmetric reef systems are affected by this process. The article discusses the sources of Mg and methods of its input into reefs, as well as conditions of these processes and the removal of soluble reaction products. This element can be sourced both from relatively deep-water depression-filling sediments (synchronous to the reef) and from clay or salt rocks in the reef topography infill. The possibility of free filtration and removal of the dissolved reaction products is mandatory for this process. If the latter condition is absent, reefs retain their primary calcareous composition.

中文翻译：

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礁白云石化的一些设置和机制

摘要

礁层的次生白云石化是一种相当普遍的现象。无论在干旱或潮湿的气候下形成礁石，孤立的礁石和不对称礁石系统的礁石都受到这一过程的影响。本文讨论了镁的来源及其进入珊瑚礁的方法，以及这些过程的条件和可溶性反应产物的去除。这种元素既可以来自相对深水的凹陷填充沉积物（与珊瑚礁同步），也可以来自珊瑚礁地形填充物中的粘土或盐岩。对于该过程，自由过滤和去除溶解的反应产物的可能性是强制性的。如果没有后一种情况，珊瑚礁会保留其主要的钙质成分。