Daniel Bertin , Emilce Bustos , Pablo Grosse , Walter Báez
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The Central Andes of South America: A review of its tectono-magmatic evolution
The Central Andes is a long-lived orogenic belt along the western margin of South America that includes the Central Volcanic Zone and two long-lived flat-slab segments, encompassing more than 3500 km between ∼5 and 33°S. The Central Andes has been the place of several outstanding geological processes since at least the latest Triassic (∼200 Ma), with the main development of the orogen taking place during the Eocene-Oligocene (45-25 Ma). In this contribution, we review and discuss the processes that have shaped and defined the crustal architecture of the Central Andes. We particularly highlight the role played by shallowing-steepening subduction cycles in controlling the tectono-magmatic evolution of the orogen, track the location of the current deformation front and the distribution of the stress field, and identify the regions where future high-flux magmatic episodes are most likely.
期刊介绍:
Papers must have a regional appeal and should present work of more than local significance. Research papers dealing with the regional geology of South American cratons and mobile belts, within the following research fields:
-Economic geology, metallogenesis and hydrocarbon genesis and reservoirs.
-Geophysics, geochemistry, volcanology, igneous and metamorphic petrology.
-Tectonics, neo- and seismotectonics and geodynamic modeling.
-Geomorphology, geological hazards, environmental geology, climate change in America and Antarctica, and soil research.
-Stratigraphy, sedimentology, structure and basin evolution.
-Paleontology, paleoecology, paleoclimatology and Quaternary geology.
New developments in already established regional projects and new initiatives dealing with the geology of the continent will be summarized and presented on a regular basis. Short notes, discussions, book reviews and conference and workshop reports will also be included when relevant.