Results 81 to 90 of about 376,087 (268)

Extrusion of subducted crust explains the emplacement of far-travelled ophiolites

Nature Communications, 2021
The interplay between continental subduction exhumation dynamics and the obduction of ophiolite sheets remains enigmatic. Here, the authors show that the extrusion of the subducted continental upper crust triggers the necking and breaking of the oceanic ...
Kristóf Porkoláb, Thibault Duretz, Philippe Yamato, Antoine Auzemery, Ernst Willingshofer   +4 more
doaj   +1 more source

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source

Identification and tectonic implications of a tear in the South American plate at the southern end of the Lesser Antilles

Geochemistry, Geophysics, Geosystems, 2008
In the southeast corner of the Caribbean, westward subduction of (Atlantic) oceanic South America beneath the Lesser Antilles transitions to east‐west transform motion between continental South America and the Caribbean plate.
S. A. Clark, M. Sobiesiak, C. A. Zelt, M. B. Magnani, M. S. Miller, M. J. Bezada, A. Levander   +6 more
doaj   +1 more source

Emergence of modern-style continental subduction modulated by rifted margin-subduction feedback

, 2023
Abstract Modern-style continental subduction is the main carrier of rifted margins to mantle depths (> 90 km) where ultra-high pressure (UHP) metamorphism above coesite stability is attained[1,2]. An open question is why exhumed UHP rocks, a key feature of modern-style continental orogens, only appeared and became common late in Earth’s ...
Carlos Ganade, Nicolas Riel, Gianreto Manatschal, Lucas Tesser, Daniela Rubatto, Joerg Hermann, Roberto Weinberg, Pierre Lanari, Boris Kaus   +8 more
openaire   +1 more source

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

Midiendo la mentalidad emprendedora [PDF]

, 2019
Como parte de nuestro ADN Continental, se encuentra la formación de mentalidad emprendedora.
Continental
core   +1 more source

Breakup Without Borders: How Continents Speed Up and Slow Down During Rifting

Geophysical Research Letters, 2019
Relative plate motions during continental rifting result from the interplay of local with far‐field forces. Here we study the dynamics of rifting and breakup using large‐scale numerical simulations of mantle convection with self‐consistent evolution of ...
Martina M. Ulvrova, Sascha Brune, Simon Williams   +2 more
doaj   +1 more source

Motion of continental slivers and creeping subduction in the northern Andes

Nature Geoscience, 2014
Regions of intense continental deformation, termed continental slivers, have been identified in Chile, Bolivia and Ecuador. Analyses of GPS data now identify another large sliver in Peru, the Inca Sliver, that is moving away from a neighbouring sliver in Ecuador—implying that moving continental slivers control the deformation of almost the entire ...
Nocquet, J.-M., Villegas-Lanza, J.C., Chlieh, M., Mothes, P., Rolandone, Frédérique, Jarrin, P., Cisneros, D., Alvarado, A., Audin, L., Bondoux, F., Martin, X., Font, Y., Régnier, M, Vallée, M., Tran, T., Beauval, C., Maguina, Mendoza, Martinez, W., Tavera, H., Yepes, H.   +19 more
openaire   +4 more sources

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

Interior Rifting Coupled With Peripheral Subduction in the Rodinia Supercontinent: New Insights From the Tarim Craton

Geochemistry, Geophysics, Geosystems
After assembly, supercontinents are shaped by internal rifting and peripheral subduction. However, the geodynamic relationship between these two processes and their respective contributions to supercontinent breakup remain poorly understood.
Shipeng Liu, Rongfeng Ge, Teng Zhou, Yang Si, Yue Wang   +4 more
doaj   +1 more source