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Upper-mantle seismic structure beneath SE and Central Brazil from P- and S-wave regional traveltime tomography
(WILEY-BLACKWELL PUBLISHING, INC, 2011)
We present models for the upper-mantle velocity structure beneath SE and Central Brazil using independent tomographic inversions of P- and S-wave relative arrival-time residuals (including core phases) from teleseismic ...
Reappraisal of the effective elastic thickness for the sub-Andes using 3-D finite element flexural modelling, gravity and geological constraints
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
P>Estimates of effective elastic thickness (T(e)) for the western portion of the South American Plate using, independently, forward flexural modelling and coherence analysis, suggest different thermomechanical properties ...
The effects of small-scale convection in the shallow lithosphere of the North Atlantic
(Wiley Blackwell Publishing, Inc, 2021-07)
Curie point depth can be used as a proxy for plate temperatures. Data from the North Atlantic (10°-50°N) are used here to determine if the observed oscillations and patterns in Curie depths could be a subproduct of small-scale ...
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 ...
A review about the quaternary upper-plate deformation in the Southern Central Andes (36–38°S): A plausible interaction between mantle dynamics and tectonics
(Pergamon-Elsevier Science Ltd, 2018-11)
Quaternary deformation in the Southern Central Andes between 36° and 38°S is disconnected, noncontinuous and not particularly tracing the main mountain topographic fronts. This pattern contrasts to the one to the north ...
Upper mantle anisotropy beneath Peru from SKS splitting: constraints on flat slab dynamics and interaction with the Nazca Ridge
(Elsevier, 2015-02)
The Peruvian flat slab is by far the largest region of flat subduction in the world today, but aspects of its structure and dynamics remain poorly understood. In particular, questions remain over whether the relatively ...
Dynamic uplift during slab flattening
(Elsevier Science, 2015-09)
Subduction exerts a strong control on surface topography and is the main cause of large vertical motions in continents, including past events of large-scale marine flooding and tilting. The mechanism is dynamic deflection: ...
Seismic anisotropy in southern Costa Rica confirms upper mantle flow from the Pacific to the Caribbean
(2020-09-04)
Surrounded by subducting slabs and continental keels, the upper mantle of the Pacific is largely prevented from mixing with surrounding areas. One possible outlet is beneath the southern part of the Central American isthmus, ...
Continental and oceanic crustal structure of the Pampean flat slab region, western Argentina, using receiver function analysis: New high-resolution results
(2011)
The Pampean flat slab of central Chile and Argentina (30◦–32◦S) has strongly influenced Cenozoic tectonics in western Argentina, which contains both the thick-skinned, basementcored uplifts of the Sierras Pampeanas and the ...
Earthquakes initiation and thermal shear instability in the Hindu Kush intermediate depth nest
(AMER GEOPHYSICAL UNION, 2016)
Intermediate depth earthquakes often occur along subducting lithosphere, but despite their ubiquity the physical mechanism responsible for promoting brittle or brittle-like failure is not well constrained. Large concentrations ...