Crustal anatomy and evolution of a subduction-related orogenic system: Insights from the Southern Central Andes (22-35 S)

L Giambiagi, A Tassara, A Echaurren, J Julve… - Earth-Science …, 2022 - Elsevier
As the archetype of mountain building in subduction zones, the Central Andes has
constituted an excellent example for investigating mountain-building processes for decades …

Widening of the Andes: An interplay between subduction dynamics and crustal wedge tectonics

J Martinod, M Gérault, L Husson, V Regard - Earth-Science Reviews, 2020 - Elsevier
Shortening of the continental lithosphere is generally accommodated by the growth of
crustal wedges building above megathrusts in the mantle lithosphere. We show that the …

Turning up the heat: high-flux magmatism in the Central Andes

SL de Silva, SM Kay - Elements: An International …, 2018 - pubs.geoscienceworld.org
The Neogene history of the Central Andes records one of Earth's most productive periods of
high-flux silicic magmatism. Subduction of an aseismic ridge, the Juan Fernández Ridge …

Imaging a magma plumbing system from MASH zone to magma reservoir

JR Delph, KM Ward, G Zandt, MN Ducea… - Earth and Planetary …, 2017 - Elsevier
Abstract The Puna Plateau of the Central Andes is a well-suited location to investigate the
processes associated with the tectono-magmatic development of a Cordilleran system …

Miocene surface uplift and orogenic evolution of the southern Andean Plateau (central Puna), northwestern Argentina

H **el, RN Alonso, B Bookhagen, JM Cottle… - Proceedings of the …, 2023 - pnas.org
We present stable hydrogen-isotope analyses of volcanic glass (δ Dg) and radiometric ages
(U–Pb zircon, U–Th calcite, AMS14C) from deformed sedimentary deposits in the vicinity of …

Full waveform inversion beneath the Central Andes: Insight into the dehydration of the Nazca slab and delamination of the back‐arc lithosphere

Y Gao, F Tilmann, DP van Herwaarden… - Journal of …, 2021 - Wiley Online Library
We present a new seismic tomography model for the crust and upper mantle beneath the
Central Andes based on multi‐scale full seismic waveform inversion, proceeding from long …

Crustal structure of the Lazufre volcanic complex and the Southern Puna from 3-D inversion of magnetotelluric data: Implications for surface uplift and evidence for …

M Unsworth, MJ Comeau, D Diaz, H Brasse… - …, 2023 - pubs.geoscienceworld.org
Abstract The Central Andes are unique in the global system of subduction zones in that a
significant, high-altitude plateau has formed above a subduction zone. In this region, both …

An updated crustal thickness map of central South America based on receiver function measurements in the region of the Chaco, Pantanal, and Paraná Basins …

C Rivadeneyra‐Vera, M Bianchi… - Journal of …, 2019 - Wiley Online Library
Previous compilation of crustal structure in South America had large unsampled areas
including the thin crust in the Sub‐Andean lowlands, largely estimated by gravity data, and …

Preliminary conceptual model of the Cerro Blanco caldera-hosted geothermal system (Southern Puna, Argentina): Inferences from geochemical investigations

A Chiodi, F Tassi, W Báez, R Filipovich, E Bustos… - Journal of South …, 2019 - Elsevier
Abstract The Cerro Blanco Caldera (CBC) is the youngest collapse caldera system in the
Southern Central Andes (Southern Puna, Argentina). The CBC is subsiding with at an …

A global assessment of the controls on the fractionation of arc magmas

BZ Klein, O Jagoutz, MW Schmidt… - Geochemistry …, 2023 - Wiley Online Library
During the differentiation of arc magmas, fractionating liquids follow a series of cotectics,
where the co‐crystallization of multiple minerals control the melt compositional trajectories …