Geos-427, 527 Orogenic Systems, Spring 2013 semester, 3 cr Instructors: Prof. George Zandt & Guest Lecturers “The objectives of this course are to examine the geological, geophysical, and geochemical aspects of Orogenic Systems and their tectonic evolution from the Precambrian to the Present using selected examples from various parts of the planet.” –Peter Coney, originator of this course Prerequisites: 427 – At least one advanced undergraduate course in geology, geochemistry, or geophysics. 527 – At least one graduate course in geology, geochemistry, or geophysics. Textbook: http://wegener.uni-graz.at/publication/books/geodyn2nd/ Course is based mostly on reading the scientific literature. Course website: http://www.geo.arizona.edu/geo5xx/geo527/ Grades: 427 – 10% HWs, 30% mid-term exam, 60% written term project 527 – 10% HWs, 30% mid-term exam, 50% written term project, 10% oral presentation of term project (Note: HWs and mid-term exam contains additional content for 527 students). CONTENTS INTRODUCTION An Overview of Orogenic Systems Spheres of Influence: asthenosphere, lithosphere, & tectospheres SUBDUCTION PROCESSES Subduction Zones: A key to understanding orogeny Subduction: What controls the backarc stress field? Flat Subduction TOOLS & TECHNIQUES Seismology and Seismic Imaging Petrology/Geochemistry of Continental Crust Thermochronology of Exhumation and Uplift Fold and Thrust Belts Build Mountains Modeling Mountain Building SURVEY OF GLOBAL OROGENS Consolidation and Rise of the Andean Cordillera Rise and Fall of the North American Cordillera In Between: The complex Caribbean Into the Tethyan Domain: The Mediterranean & Anatolia The Hit: The classic Alps The Grand Slam: Himalayas and the Indo-Asian Collision SYNTHESIS Lithospheric-scale Andean Tectonics: Delamination–control or consequence? The Laramide Orogeny: Collision with an oceanic plateau? Orogenic Collapse: The Basin and Range vs Colorado Plateau The Tibetan Plateau: To Flow or Not Cordilleran Cycles?