Download or read book The Nature of Magmatism in the Appalachian Orogen written by A. Krishna Sinha and published by Geological Society of America. This book was released on 1997-01-01 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thermal evolution of mountain belts is recorded inthe distribution, origin and ages of magnatism. In this volume, petrologic, isotopic and geochemical evidence is presented to highlight the contribution of igneous rocks to the evolution of the Appalachian Orogen in both Canada and the United States. These papers emphasize the use of modern geochemical and petrologic data to discriminate the sources yielding magmas, and thus the nature of the crust and mantle.