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Mostrando ítems 51-60 de 2002
High-resolution image of the North Chilean subduction zone: seismicity, reflectivity and fluids
(2014)
We obtained high-precision locations for 5250 earthquakes in the Iquique segment of the northern Chilean subduction zone from two temporary local seismic networks around 21°S. A double seismic zone in the downgoing Nazca ...
Active Andean volcanism: its geologic and tectonic setting
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2004)
Coupled tectonic evolution of Andean orogeny and global climate
(Elsevier, 2015)
The largest tectonic relief breaking the Earth's surface (13 km vertically) is at the subduction margin of the Andes, which generates routinely megathrust earthquakes (Mw > 8.5) and drives the paradigmatic Andean orogen. ...
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 ...
Motion of continental slivers and creeping subduction in the northern Andes
(Nature Research, 2014)
Along the western margin of South America, plate convergence is accommodated by slip on the subduction interface and deformation of the overriding continent. In Chile, Bolivia, Ecuador and Colombia, continental deformation ...
Magmatic Evolution of the Southernmost Andes and its Relation with Subduction Processes
(Springer, 2015)
The magmatic arc in the SouthernmostAndes is represented by the Fuegian Batholith and satellite plutons, plus minorvolcanic and volca-niclastic sequences. Magmatism was active from the LateJurassic to the Miocene in response ...
Modeling trench sediment-controlled flow in subduction channels: Implications for the topographic evolution of the Central Andean Fore Arc
(Blackwell Publishing Ltd, 2018-10)
The high elevation of the onshore fore-arc platform in northern Chile cannot be accounted for by previously proposed tectonic mechanisms such as coastal underplating and coseismic deformation, whose topographic effects are ...
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 ...
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 ...
S-Local-Wave Seismic Anisotropy in the Forearc Above the Subducted Nazca Plate Between 33°S and 34.5°S
(Birkhauser Verlag Ag, 2016-04)
S-wave splitting from local earthquakes within the Nazca plate that are deeper than the interplate seismogenic zone enabled the determination of the fast velocity direction, U, and the lag time, dt, in the forearc of the ...