We study the largest exposed example of an early Cambrian palaeokarst, associated with laterites and developed during rifting of the Ossa–Morena Zone. The lithostratigraphy, biostratigraphy, facies and the genesis reflect episodes of sea-level fall (Cerro del Hierro Regression) related to tectonic events and palaeoclimate. This palaeokarst can be primarily considered as the result of early Cambrian polyphase karstification in an extensional tectonic regime, later modified by Neogene–Quaternary geomorphological processes. The event may correlate with other regressive events of a similar age in Spain, Italy, United Kingdom, South America and Australia. This episode also has local names (e.g. Cerro del Hierro Regression in the Mediterranean region; Woodlands Regression in the UK). It is sometimes accompanied by additional karst development outside of Spain that is compared and interpreted in a global context.

中文翻译：

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西班牙Cerro del Hierro：最大的暴露的早期寒武纪古岩溶

我们研究了早期寒武纪古岩溶的最大暴露例子，与红土有关，并在奥萨-莫雷纳带的裂谷过程中发育。岩石地层、生物地层、相和成因反映了与构造事件和古气候有关的海平面下降（Cerro del Hierro Regression）的事件。这种古岩溶主要被认为是拉张构造体制中早寒武世多期岩溶作用的结果，后来又受到新近纪-第四纪地貌过程的影响。该事件可能与西班牙、意大利、英国、南美和澳大利亚的其他类似年龄的退行事件相关。这一集也有本地名称（例如，地中海地区的 Cerro del Hierro Regression；英国的 Woodlands Regression）。