Results 61 to 70 of about 7,754 (208)

Mapping the Crustal Thickness of the Andes Using pmP Phases Identified From Adaptive Teleseismic Array Data

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Crustal thickness (or Moho depth) is a key parameter for many geological and geophysical models. Despite this we have a limited number of measurements, typically from seismic receiver functions, to constrain variations in crustal thickness.
Alice Blackwell, Timothy Craig, Sebastian Rost, Hanna‐Riia Allas   +3 more
wiley   +1 more source

7 Pre‐Hispanic Earthquake in the Peruvian Forearc [PDF]

, 2021
We present the results of a paleoseismic survey of the Incapuquio Fault System, a prominent transpressional fault system cutting the forearc of South Perú.
Briant García, Laurence Audin, Robert, X, Anderson Palomino, Aguirre, E, Audin, Laurence, Benavente, Carlos, Audin, L, Sam Wimpenny, Wimpenny, Sam, Palomino, Anderson, Xavier Robert, García, Briant, García, B, Enoch Aguirre, Rosell, Lorena, Lorena Rosell, Wimpenny, S, Aguirre, Enoch, Rosell, L, Palomino, A, Carlos Benavente, Benavente, C, Robert, Xavier   +23 more
core   +1 more source

Saline aqueous fluid circulation in mantle wedge inferred from olivine wetting properties

Nature Communications, 2019
The authors here perform experiments to investigate the dihedral angle of olivine-H2O and olivine-H2O-NaCl systems. The observed effect of NaCl to decrease dihedral angles allows fluids to percolate through forearc mantle wedge and to accumulate in the ...
Yongsheng Huang, Takayuki Nakatani, Michihiko Nakamura, Catherine McCammon   +3 more
doaj   +1 more source

Inception and Plate Evolution of the Lau Back‐Arc Basin From Plate Boundary Refinements

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Back‐arc basins are important settings for crustal growth that form in response to both near and far‐field tectonic influences. To better understand the processes that control back‐arc basin initiation and evolution, we present a refined model of the kinematics of opening of the Lau Basin, embedded in a global plate model.
Alan T. Baxter, Mark D. Hannington, Kaitlyn Breker, Christopher Galley, Marc L. Fassbender, Erin Bethell   +5 more
wiley   +1 more source

(Table EA3) Ba concentrations in Costa Rica forearc samples

, 2012
(Table EA3) Ba concentrations in Costa Rica forearc ...
Solomon, Evan A, Kastner, Miriam, Evan A Solomon (6983276), Miriam Kastner (6963548)   +3 more
core   +1 more source

Demise of the Barra Honda Carbonate Shoal (Costa Rica) at the Paleocene‐Eocene Boundary Linked to Climate Change and Forearc Tectonics

Geochemistry, Geophysics, Geosystems
The latest Cretaceous(?)–Paleocene Barra Honda Formation represents one of the largest carbonate shoals (>900 km2, 350 m thick) of the convergent margin of Costa Rica.
Goran Andjić, Claudia Baumgartner‐Mora, Peter O. Baumgartner, Maria Rose Petrizzo, Torsten Vennemann, André N. Paul, Valentin Lorenzo   +6 more
doaj   +1 more source

Importance of forearc topography for the triggering of aftershocks of megathrust earthquakes: insights from mechanical models and the Tohoku-Oki and Maule earthquakes [PDF]

Solid Earth
Aftershocks of megathrust earthquakes at subduction zones may be driven by stresses arising from the topography of the forearc. However, the effect of topographic stresses on aftershock triggering is quantitatively not well understood and has been ...
A. Dielforder, A. Dielforder, G. M. Bocchini, A. Hampel   +3 more
doaj   +1 more source

Bathymetry of the Indonesian Sunda margin-relating morphological features of the upper plate slopes to the location and extent of the seismogenic zone [PDF]

Natural Hazards and Earth System Sciences, 2010
Earthquake history shows that the Sunda subduction zone of the Indonesian margin produces great earthquakes offshore Sumatra, whereas earthquakes of comparable magnitude are lacking offshore Java and the Lesser Sunda islands.
A. Krabbenhoeft, R. W. Weinrebe, H. Kopp, E. R. Flueh, S. Ladage, C. Papenberg, L. Planert, Y. Djajadihardja   +7 more
doaj   +1 more source

Multi‐Stage Evolution of Subducted Oceanic Mantle: The Marlborough Ultramafic Suite (New England Orogen, Australia)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Oceanic lithosphere is continuously destroyed by subduction, challenging our ability to develop tectonic reconstructions. One way to tackle this problem is to examine relics of once‐consumed oceanic domains preserved along convergent margins. In the New England Orogen (eastern Australia), disrupted exposures of ultramafic rocks loosely define ...
J. A. Pasco, G. Rosenbaum, T. Ubide, L. A. Milan, C. Spier   +4 more
wiley   +1 more source

Stratigraphic signatures of forearc basin formation mechanisms

Geochemistry, Geophysics, Geosystems, 2017
AbstractTectonic deformation of accretionary wedges is often interpreted using stratigraphic patterns observed in forearc basins. However, similar stratigraphic patterns could evolve from different deformational processes making it difficult to uniquely reconcile stratigraphic patterns and the geodynamic history of natural accretionary wedges ...
Utsav Mannu, Kosuke Ueda, Sean D. Willett, Taras V. Gerya, Michael Strasser   +4 more
openaire   +3 more sources