Results 81 to 90 of about 1,202,850 (223)

Early development of anoxia prior to the main euxinic phase of the Jenkyns Event on the margin of the Western Tethys (Sachrang Basin, Eastern Alps)

Sedimentology, EarlyView.
ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller, Stefan Neumeister, Jan Schlögl, Emanuela Mattioli, Hans‐Jürgen Gawlick, Thomas J. Algeo, Adam Tomašových   +6 more
wiley   +1 more source

2021 Alaska earthquake: entropy approach to its precursors and aftershock regimes [PDF]

Natural Hazards and Earth System Sciences
We have conducted an entropy analysis in Alaska, a seismic-rich region in a subduction zone that exhibits a nontrivial behavior: the subduction arc alters the seismic activity from the eastern zone to the western zone, demonstrating a decrease in ...
E. E. Vogel, E. E. Vogel, E. E. Vogel, D. Pastén, G. Saravia, M. Aguilera, A. Posadas, A. Posadas   +7 more
doaj   +1 more source

Evidence for Miocene subduction beneath the Alboran Sea (Western Mediterranean) from 40Ar/39Ar age dating and the geochemistry of volcanic rocks from holes 977A and 978A [PDF]

, 1999
Volcanic pebbles in gravels from Sites 977 and 978 in the Alboran Sea (western Mediterranean) were dated (using the 40Ar/ 39Ar single-crystal laser technique) and analyzed for their major- and trace-element compositions (determined by X-ray ...
Hoernle, Kaj, Garbe-Schönberg, Dieter, van den Bogaard, Paul, Duggen, Svend, Mocek, Beate   +4 more
core   +1 more source

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

Terra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source

RIESGO: A New Seismogeodetic Network Spanning the States of Guerrero and Oaxaca in The Mexican Subduction Zone

Geofísica Internacional
A seismogeodetic network of twenty stations has been installed along the subduction zone of the states of Guerrero and Oaxaca (RIESGO). The purpose of the network is to continuously monitor the tectonic deformation of the coast along the Mexican ...
Gerardo Suárez-Reynoso, José Antonio Santiago Santiago, Diego Espinosa-Kuswara, Ekaterina Kazachkina, Sergio Aguilar, Ketzallina Flores-Ibarra   +5 more
doaj   +1 more source

The impact of splay faults on fluid flow, solute transport, and pore pressure distribution in subduction zones: A case study offshore the Nicoya Peninsula, Costa Rica

Geochemistry, Geophysics, Geosystems, 2015
Observations of seafloor seeps on the continental slope of many subduction zones illustrate that splay faults represent a primary hydraulic connection to the plate boundary at depth, carry deeply sourced fluids to the seafloor, and are in some cases ...
Rachel M. Lauer, Demian M. Saffer
doaj   +1 more source

Rapid subduction initiation and magmatism in the Western Pacific driven by internal vertical forces

Nature Communications, 2020
The magmatic progression produced during the initiation of the Izu-Bonin-Marianas subduction zone took place rapidly over 1 million years, but it has been unclear why.
B. Maunder, J. Prytulak, S. Goes, M. Reagan   +3 more
doaj   +1 more source

Geochemistry of volcanic rocks from the Sunda Arc [PDF]

, 2013
Geochemical analyses of igneous rocks can provide valuable information about processes, element fluxes, and rock lithologies not evident at the surface.
DEMPSEY, SCOTT,ROBERT
core  

Restoring the Missing Late Cretaceous Arc of Iran

Geochemistry, Geophysics, Geosystems
Persistent arc magmatism archives fluid transport and mantle partial melting in subduction zones. However, arc magmatism often exhibits different magmatic records along the strike, as seen in the Tethyan orogenic belt.
Yiyang Lei, Yang Chu, Mark B. Allen, Wei Lin, Bo Wan, Ling Chen, Morteza Talebian, Guangyao Xin, Tanjie Liu, Yilin Guo, Lin Guo   +10 more
doaj   +1 more source

Targeting deeply-sourced seeps along the Central Volcanic Zone [version 1; peer review: 2 approved, 1 approved with reservations]

Open Research Europe
At convergent margins, plates collide producing a subduction process. When an oceanic plate collides with a continental plate, the denser (i.e., oceanic) plate subducts beneath the less dense (continental) plate.
Deborah Bastoni, Felipe Aguilera, Mauricio Aguilera, Joy Buongiorno, Jenny M. Blamey, Angelina Cordone, Agostina Chiodi, Marco Giardina, Alfredo Esquivel, Joaquin Gutierrez, Cristobal Gonzalez, Viola Krukenberg, Nahun Irarrazabal, Jacopo Pasotti, Susana Layana, Alejandro Rodriguez, Carlos J. Ramirez, Claudia Rojas, Timothy J. Rogers, Matt O. Schrenk, Jorge Sánchez-SanMartín, Gerdhard L. Jessen, Hector Vallejos, Karen G. Lloyd, J. Maarten de Moor, Donato Giovannelli, Peter H. Barry   +26 more
doaj   +1 more source