{"product_id":"appalachian-tectonics-9781442639225","title":"Appalachian Tectonics","description":"\u003cp\u003e • Author(s): Thomas Clark\u003cbr\u003e • Publisher: University of Toronto Press\u003cbr\u003e • Publisher Imprint: University of Toronto Press\u003cbr\u003e • BISAC: Ecosystems \u0026amp; Habitats - Mountains\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eMountain ranges are the most conspicuous elements of the \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003eearth's architecture, and the manner in which the architectural units are \u003cp\u003e\u003c\/p\u003earranged or disarranged has become the study of a subdivision of geology known as \u003cp\u003e\u003c\/p\u003eTectonics. A hundred years ago James Hall attempted the first scientific synthesis \u003cp\u003e\u003c\/p\u003eof the steps in the building of the eastern North American mountains, the \u003cp\u003e\u003c\/p\u003eAppalachians. His initial hypothesis of 1857, expanded and broadened by J.D. Dana \u003cp\u003e\u003c\/p\u003eduring the decade which followed, laid the foundation for our modern geosynclinal \u003cp\u003e\u003c\/p\u003etheory of mountain building. During the last century of modifications and \u003cp\u003e\u003c\/p\u003erefinements were contributed concerning the roles played by crustal compression, \u003cp\u003e\u003c\/p\u003esub-crustal convection currents, batholiths, metamorphism, gravity sliding, and \u003cp\u003e\u003c\/p\u003eisostasy. In recent years detailed mapping, supplemented by studies of turbidity \u003cp\u003e\u003c\/p\u003ecurrents, paleomagentism, stable isotopes, and radio-activity have helped to unravel \u003cp\u003e\u003c\/p\u003ethe history of mountain building, but today there are as many questions unanswered \u003cp\u003e\u003c\/p\u003eas there are those for which there are tentative solutions.\u003cp\u003eAspects of \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003eAppalachian orogeny was a suitable subject for the symposium of the Royal Society of \u003cp\u003e\u003c\/p\u003eCanada Annual Meeting in 1966 at Sherbrooke, Quebec--a city within the Appalachian Mountain System. This book assembles the papers of this symposium, dealing with gravity sliding, studies of sedimentation and structure in limited areas, comparisons with the Appalachians of the United States, the bearing of gravity measurements upon our understanding of mountain structure, earthquakes, and a broad, general view of the tectonic pattern of the earth of which this mountain-built belt is but a small part.\u003cp\u003eSuch a comprehensive volume, bringing together a variety of points of view of some of the foremost scholars in the field, indicates the vastness of the subject, the significant progress made thus far, the necessity for new and progressive methods of exploration, and above all the interdependence of all the workers in the field, no matter how seemingly unrelated their specialities are.\u003c\/p\u003e","brand":"University of Toronto Press","offers":[{"title":"Paperback","offer_id":46894528102551,"sku":"9781442639225","price":2429.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781442639225.webp?v=1770325043","url":"https:\/\/atlanticbooks.com\/products\/appalachian-tectonics-9781442639225","provider":"Atlantic Books","version":"1.0","type":"link"}