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Geodynamics of a Cordilleran
         Orogenic System

         The Central Andes of
   Argentina and Northern Chile

Edited by
Peter G. DeCelles, Mihai N. Ducea, Barbara Carrapa, and Paul A. Kapp

        Geodynamics of a                        This memoir brings together results from a six-year,
Cordilleran Orogenic System                     multidisciplinary study of the linkages among processes
                                                that have formed the highest, widest part of the Andean
         The Central Andes of                   Cordilleran orogenic belt in northern Argentina and
   Argentina and Northern Chile                 Chile. The region features a tectonically erosive forearc,
                                                protracted arc magmatism, a high-elevation hinterland
  Edited by Peter G. DeCelles, Mihai N. Ducea,  plateau and strongly shortened retroarc thrust belt, and a
         Barbara Carrapa, and Paul A. Kapp      Paleocene–Recent foreland basin system. Surface geology
                                                records spatially complex shortening, extension, mafic
Me$m6be3r.P0ri0ce                               to felsic magmatism, hinterland basin development,
                                                elevation change, and regional foreland basin migration.
                   Memoir 212                   Seismological and geodynamic studies demonstrate a
                                                complex, dynamic upper mantle marked by widespread
                                                foundering of dense lithosphere formed by magmatic and
                                                metamorphic processes beneath the hinterland. Diverse
                                                processes operating over the past 60 m.y. in the central
                                                Andes define a tectono-magmatic cycle with a periodicity
                                                of ca. 25–30 m.y., providing a new framework for
                                                interpreting Cordilleran orogenic systems worldwide.

                                                           MWR212, 490 p., ISBN 9780813712123
                                                                $90.00, member price $63.00

Memoir 212                                         toll-free 1.888.443.4472
                                                  1.303.357.1000, option 3
                                                gsaservice@geosociety.org

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