The Paleocene–Eocene Thermal Maximum (PETM) was an “extreme” episode of environmental stress that affected the Earth in the past, and it has numerous affinities concerning the rapid increase in the greenhouse effect. It has left several biological, compositional, and sedimentary facies footprints in sedimentary records. Clay minerals are frequently used to decipher environmental effects because they represent their source areas, essentially in terms of climatic conditions and of transport mechanisms (a more or less fast travel, from the bedrocks to the final site of recovery). Clay mineral variations at the PETM have been studied by several authors in terms of climatic and provenance indicators, but also as tracers of more complicated interplay among different factors requiring integrated interpretation (facies sorting, marine circulation, wind transport, early diagenesis, etc.). Clay minerals were also believed to play a role in the recovery of pre-episode climatic conditions after the PETM exordium, by becoming a sink of atmospheric CO₂ that is considered a necessary steep to switch off the greenhouse hyperthermal effect. This review aims to consider the use of clay minerals made by different authors to study the effects of the PETM and their possible role as effective (simple) proxy tools for environmental reconstructions.

中文翻译：

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新世-始新世热最大值的粘土矿物：解释，限制和观点

古新世-始新世最大温度（PETM）是过去曾影响地球的环境压力的“极端”事件，它与温室效应的迅速增加有许多相似之处。它在沉积记录中留下了几个生物，成分和沉积相足迹。粘土矿物通常用于解释环境影响，因为它们代表了它们的来源区域，基本上就气候条件和运输机制而言（从基岩到最终的恢复地点，或多或少地快速移动）。多位作者已经根据气候和物源指标研究了PETM上的粘土矿物变化，但也作为需要综合解释的不同因素（相分类，海洋环流，风力运输，早期成岩作用等）。人们还认为，粘土矿物通过成为大气中一氧化碳的汇聚体，在PETM火山爆发后还可以在恢复前期气候条件中发挥作用。₂被认为是关闭温室高温效应所必需的陡壁。本文旨在考虑使用不同作者生产的粘土矿物来研究PETM的效果及其作为环境重建的有效（简单）替代工具的可能作用。