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Andean flat slab subduction through time
(Geological Society of America, 2009)
The analysis of magmatic distribution, basin formation, tectonic evolution and structural styles of different segments of the Andes shows that most of the Andes have experienced a stage of flat subduction. Evidence is ...
Geodynamic controls on magmatic arc migration and quiescence
(Elsevier Science, 2021-07)
Reconfigurations of magmatic arcs through time have been recognized since pioneering works, describing inland and trenchward arc migrations or magmatic shut-off lasting for several millions of years. These modifications ...
The westward lithospheric drift, its role on the subduction and transform zones surrounding Americas: Andean to cordilleran orogenic types cyclicity
(Elsevier, 2020-07)
We investigate the effect of the westerly rotation of the lithosphere on the active margins that surround the Americas and find good correlations between the inferred easterly-directed mantle counterflow and the main ...
Plume Subduction Beneath the Neuquén Basin and the Last Mountain Building Stage of the Southern Central Andes
(Springer Nature Switzerland AG, 2020)
The occurrence of a Neogene shallow subduction stage, as well as, a Pliocene slab-tearing, and steepening of the Nazca plate in the southern Central Andes are well established. However, a satisfactory explanation for the ...
Payenia volcanic province in the Southern Andes: An appraisal of an exceptional Quaternary tectonic setting
(Elsevier Science, 2011-04)
The Southern Volcanic Zone of the Andes has a Quaternary basaltic province along the retroarc which has a unique tectonic setting. The Payenia volcanic province covers an area larger than 40,000km2 between 33°30' and 38° ...
An Andean tectonic cycle: From crustal thickening to extension in a thin crust (34°-37°SL)
(Elsevier Science, 2014-01)
Several orogenic cycles of mountain building and subsequent collapse associated with periods of shallowing and steepening of subduction zones have been recognized in recent years in the Andes. Most of them are characterized ...
Plume overriding triggers shallow subduction and orogeny in the southern Central Andes
(Elsevier Science, 2017-09)
Plate tectonic theory implies that mantle plumes may be eventually overridden by lithosphere during continental drift. These events have particular tectonomagmatic consequences for active margins and hence related orogenic ...
Subduction Zone Mantle Enrichment by Fluids and Zr-Hf-depleted Crustal Melts as Indicated by Backarc Basalts of the Southern Volcanic Zone, Argentina
(Elsevier Science, 2016-10)
We aim to identify the components metasomatizing the mantle above the subducting Nazca plate under part of the Andean Southern Volcanic Zone (SVZ). We present new major and ICP-MS trace element and Sr, Nd and high-precision ...
Imaging the transition from flat to normal subduction: variations in the structure of the Nazca slab and upper mantle under southern Peru and northwestern Bolivia
(Oxford University Press, 2016-01)
Two arrays of broad-band seismic stations were deployed in the north central Andes between 8° and 21°S, the CAUGHT array over the normally subducting slab in northwestern Bolivia and southern Peru, and the PULSE array over ...