Principles of Practical Tectonic Analysis of Cratonic Regions With Particular Reference to Western North America

About this book

Steep crystalline-basement faults, commonly indicated by potential-field anomalies, played a crucial role in evolution of continental cratonic platforms. In the Phanerozoic Western Canada Sedimentary Province, history of crustal block movements and warps is reconstructed from the distribution of depocenters, lithofacies and structures in structural-formational tages in sedimentary cover. Each tage is a rock succession formed during a particular tectonic stage; regional tectonic restructuring closes each stage, and the next stage represents a new tectonic regime. Practical tectonic analysis, based on observation of rocks and geophysical data, is a reliable guide for deciphering a region's geologic history and for resource exploration.

Contents

Basic Notions and Definitions.- Structural-Formational Tectonic Etages as Fundamental Units of Regional Tectonic Analysis.- Regional Tectonic Analysis of the Western Canada Sedimentary Province.- Methodological Reasons for Structural-Formational Etages.- Reconstruction of Structural History of a Craton by Using Structural-Formational Etages in its Cover and Precover Volcano-Sedimentary Basins.- Finding an Adequate Regional Tectonic Interpretation Constrained by Mappable Properties of Rocks.- Neotectonic and Current Tectonic Crustal Movements.- Conclusions.

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