Geodynamics of a Cordilleran Orogenic System: The Central Andes of Argentina and Northern Chile

The Miocene Arizaro Basin, central Andean hinterland: Response to partial lithosphere removal?
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Published:January 01, 2015
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CiteCitation
P.G. DeCelles, B. Carrapa, B.K. Horton, J. McNabb, G.E. Gehrels, J. Boyd, 2015. "The Miocene Arizaro Basin, central Andean hinterland: Response to partial lithosphere removal?", Geodynamics of a Cordilleran Orogenic System: The Central Andes of Argentina and Northern Chile, Peter G. DeCelles, Mihai N. Ducea, Barbara Carrapa, Paul A. Kapp
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The Arizaro Basin in northwestern Argentina sits today in the western Puna Plateau at elevations of 3800–4200 m along the eastern flank of the Miocene to modern magmatic arc. The basin is roughly circular in plan view and ~100 km in diameter, and it was filled during Miocene time (ca. 21–9 Ma) by >3.5 km of eolian, alluvial, fluvial, and lacustrine sediment in addition to ash-fall tuffs from the Andean magmatic arc. The basin fill was subsequently shortened in its central part, and it has been uplifted and topographically inverted. The Arizaro Basin is not obviously related to known faults,...
- absolute age
- alluvium
- Altiplano
- Andes
- Argentina
- arkosic composition
- Cenozoic
- Chile
- clastic rocks
- clastic sediments
- dates
- deposition
- detritus
- Eastern Cordillera
- eolianite
- fluvial environment
- granites
- igneous rocks
- lacustrine environment
- lake sediments
- lithosphere
- Mesozoic
- Miocene
- Neogene
- nesosilicates
- Ordovician
- orthosilicates
- Paleozoic
- plutonic rocks
- Puna
- pyroclastics
- sandstone
- sedimentary rocks
- sediments
- silicates
- South America
- stream sediments
- tectonics
- Tertiary
- tuff
- U/Pb
- upper Paleozoic
- volcanic rocks
- zircon
- zircon group
- Arizaro Basin