Charles Lyell's life work, the influential textbook and philosophical treatise The Principles of Geology, helped to shape the Victorian age. There were few diversions from the central task of the Principles of Geology in the course of the twelve editions. Perhaps the most significant and notable was the discovery and investigation of loess; a silty sediment, often of considerable thickness, and widely distributed in the Rhine valley. He made a significant contribution to loess studies and, with his father-in-law, Leonard Horner, explored the loess regions of the Rhine Valley. The loess period lasted roughly from 1830 to 1836, and he established the first paradigm theory for the formation of loess deposits from deposition in a lake or perhaps from slow-moving water. This held sway until displaced by the aeolian theory of F. von Richthofen.

中文翻译：

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地质学原理的工作被“中断”，查尔斯莱尔调查黄土沉积的性质和形成

查尔斯·莱尔 (Charles Lyell) 的毕生著作、颇具影响力的教科书和哲学论文《地质学原理》，帮助塑造了维多利亚时代。在十二个版本的过程中，几乎没有偏离《地质学原理》的中心任务。也许最重要和最引人注目的是黄土的发现和调查。一种粉质沉积物，通常很厚，广泛分布于莱茵河谷。他对黄土研究做出了重大贡献，并与岳父伦纳德·霍纳 (Leonard Horner) 一起探索了莱茵河谷的黄土地区。黄土时期大约从 1830 年持续到 1836 年，他建立了黄土沉积形成的第一个范式理论，黄土沉积来自湖泊或缓慢流动的水。这一直占据主导地位，直到被 F. von Richthofen 的风成理论取代。