Excerpt from Report and Transactions of the Devonshire Association for the Advancement of Science, Literature, and Art, Vol. 2: Barnstaple, July, 1867; Part I
In determining the relative ages of rocks the geologist relies on certain trustworthy tests. Thus, he is confident that, where he has a clear case of superposed strata, every bed is older than those overlying, and more modern than those underlying, it; that a conglomerate is more recent than the rocks which furnished the pebbles of which it is made up; that the rocks which, in the forms of dykes and veins, invade other rocks, are more modern than those invaded and that strata lithologically similar, found in localities not widely separated, and charged with the same species of fossils, are geological contemporaries.
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Paperback. Condition: New. Print on Demand. This book examines the geological evolution of the English county of Devon, discussing its rock formations, fossils, and geological history. It explores the changes that have shaped Devon over millions of years, from the formation of its ancient rocks to the more recent deposition of its red sandstone formations. The book discusses the significance of these geological changes and provides insights into the understanding of Earth's history. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9780282546021_0
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9780282546021
Quantity: 15 available