from regional to global, differentiating itself from the material covered in most structural geology textbooks. Moores and Twiss emphasize basic principles and methodologies of tectonics, embracing the time-honored perspective of using present processes to understand the past. Comprehensive in scope and detail, coverage includes the effects of plate motions and reconstructions and the resultant structures associated with active rift, transform, and subduction boundaries as well as triple junctions and collision zones; deformations of both the ocean basins and the continents; and orogenic belts. Moores and Twiss present tectonics as an open-ended field of study in which assumptions can be challenged and interpretations changed. The authors emphasize the use of models as a means of understanding observations and putting them in context to maintain a distinction between what we know from observing the Earth and what we infer from interpretation. Table of Contents: I: INTRODUCTION 1. Overview 2. Geophysical Techniques in Tectonics II: PLATE TECTONICS 3. Principal Tectonic Features of the Earth 4. Plate Tectonics 5. Divergent Margins and Rifting 6. Transform Faults, Strike-Slip Faults, and Related Fracture Zones 7. Convergent Margins 8. Tectonics and Geology of Selected Triple Junctions 9. Collisions Interlude: THE SCIENTIFIC METHOD AND THE PLATE TECTONIC REVOLUTION III: TECTONIC HISTORY 10. Anatomy of Orogenic Belts 11. Neotectonics 12. Case Studies of Orogenic Belts 13. Tectonics of Terrestrial Planets Appendix: Map Projections

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