New 2010 Maule Aftershock Catalog Reveals Structure of the Deep Subduction Interface
Abstract On 27 February 2010, a Mw 8.8 earthquake occurred near Maule in south‐central Chile. The subsequent rapid deployment of a dense network of seismic stations on land was able to capture the first year of its aftershock sequence. Here, we revisit this data set using picking Artificial Intelligence tools, a 3D velocity model of the region and ...
C. Chalumeau, A. Rietbrock
wiley +1 more source
Dual slab stagnation depths controlled by grain-size-induced sporadic low-viscosity zones at around 1000 km depth. [PDF]
Li J, Li K, Li J, Fei H, Hu J.
europepmc +1 more source
Thermochemical Controls on the X, 410, and 660 Discontinuities in the Central Mediterranean
Abstract The mantle beneath the Central Mediterranean is thermally and compositionally heterogeneous, as indicated by fragmented and locally stagnant slabs in tomographic images and HIMU‐like anorogenic magmatism. Mantle discontinuities are sensitive to both temperature and composition, and thus provide a way to quantify these heterogeneities.
Luciana Bonatto +4 more
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Inboard advance of arc magmatism regulates mountain building in the Andes. [PDF]
Capaldi TN +4 more
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On the dynamics of subduction and the effect of subduction zones on mantle convection
Sur la dynamique de la subduction et l’effet des zones de subduction sur la convection du manteau La subduction est une des principales expressions superficielles de la convection mantellique et représente un ingrédient crucial de la géodynamique globale.
openaire +2 more sources
Abstract In the transition zones between eastern boundary upwelling regions and subtropical gyres, upwelling and offshore moving filaments generated by frontal instabilities play an important role in the gyre‐ward transport of new nutrients and phytoplankton biomass. However, quantification of such transport using field data remains sparse.
Angèle Nicolas +7 more
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Zinc isotope evidence for extensive carbonate recycling in the Arctic asthenosphere. [PDF]
Zhang WQ +11 more
europepmc +1 more source
Ageostrophic Velocities of Curved Ocean Fronts
Abstract Ageostrophic velocities at ocean fronts play a key role in ventilating the upper ocean. The overturning circulation driven by cross‐front ageostrophic flow is widely recognized as the major mechanism of vertical transport, but the role of along‐front ageostrophic velocities remains underrepresented in existing theory.
Weiguang Wu
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Paleoarchean deep crustal hydration and oxidation induced by subduction-driven water recycling. [PDF]
Zhou D +7 more
europepmc +1 more source
Paleoseismic Evidence of Recent Co‐Seismic Ruptures in Western Tierra del Fuego, Chile
Abstract The Magallanes‐Fagnano fault (MFF) in Tierra del Fuego (TDF) is a major left‐lateral transform boundary between the South American and Scotia plates. While surface ruptures associated with the 1949 earthquakes have been documented in Argentina east of the Fagnano Lake, their extension to the west remained uncertain.
Ricardo Aguilera‐Cortés +4 more
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