Bøker av Roderick Impey Murchison

Siluria is an important work of geology that explores the oldest fossiliferous rocks in the world and their foundations. Written by Roderick Impey Murchison, one of the foremost geologists of the 19th century, this book also includes a brief sketch of the distribution of gold over the earth. It is a fascinating read for anyone interested in the history of geology and the science of the earth.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Scottish geologist Sir Roderick Impey Murchison (1792-1871) first proposed the Silurian period after studying ancient rocks in Wales in the 1830s. Naming the sequence after the Silures, a Celtic tribe, he believed that the fossils representing the origins of life could be attributed to this period. This assertion sparked a heated dispute with his contemporary Adam Sedgwick, ultimately ruining their friendship. First published in 1854, Siluria is a significant reworking of Murchison's earlier book, The Silurian System, which had appeared in 1839. Thorough in his approach, he combines his own findings with those of researchers around the world, touching also on the later Devonian, Carboniferous and Permian periods as well as questions of natural history. An important text in nineteenth-century geology and palaeontology, the work contains a valuable geological map of Wales along with detailed engravings of fossils, including crustaceans, cephalopods and fish.

Few men were better placed to produce an authoritative study of Continental geology than Roderick Impey Murchison (1792-1871), President of the Geological Society and the Royal Geographical Society of London. Having conducted extensive fieldwork alongside Adam Sedgwick, in 1847 Murchison set out on a study tour that would change the manner in which geology was understood and debated. Delivered before the Geological Society and published in their Quarterly Journal in 1849, this paper challenged received wisdom as to the age and formation of the most impressive of geological phenomena. Covering crystalline and palaeozoic rocks, the Trias, iron mines, nummulitic rocks and fish slates, this landmark study and its numerous diagrams that illustrate it not only explain a geological subject, but also reveal the nature of nineteenth-century scientific scholarship. The book also contains a short supplementary paper on the distribution of surface detritus in the Alps.