Excerpt from An Introduction to the Study of Petrology: The Igneous Rocks
Petrology is that department of geological science which has for its object the investigation of the characters and relations of rocks, that is to say, of the various materials of which the earth's crust is built up. A. Rock may be defined as a mineral aggregate, possessing a more or less persistent geological charac ter. In studying rocks, therefore, we have three points of departure: (1) their geological relations, or mode of occurrence (2) their constituent minerals; and (3) the mode of aggregation of the constituent minerals, or rock-structure.
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Seller: Forgotten Books, London, United Kingdom
Paperback. Condition: New. Print on Demand. This book is an introductory guide to Igneous Rocks, focusing on their composition and occurrence around the globe. Igneous rocks are those formed when molten rock solidifies. The author describes the structure and internal composition of these rocks and categorizes them into three classes: Plutonic (formed deep within the Earth), Volcanic (formed closer to the surface) and Metamorphic (formed when existing rock is altered by heat and pressure). The author also discusses the constituent minerals commonly found in igneous rocks, including quartz, felspar, hornblende, mica and pyroxene, and the secondary minerals that result from their decomposition. This book is an excellent resource for anyone interested in understanding the geology beneath their feet. 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 # 9781331996972_0
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781331996972
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781331996972
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Seller: moluna, Greven, Germany
Condition: New. KlappentextrnrnExcerpt from An Introduction to the Study of Petrology: The Igneous RocksPetrology is that department of geological science which has for its object the investigation of the characters and relations of rocks, that is to sa. Seller Inventory # 2147914205
Quantity: Over 20 available