Results 91 to 100 of about 45,915 (265)

Accretionary Tectonics of the North American Cordillera [PDF]

, 1983
Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
core   +2 more sources

Tectonic overview of the West Gondwana margin [PDF]

, 2008
The oceanic southern margin of Gondwana, from southern South America through South Africa, West Antarctica, New Zealand (in its pre break-up position), and Victoria Land to Eastern Australia is one of the longest and longest-lived active continental ...
Pankhurst, Robert J., Vaughan, Alan P.M.
core   +1 more source

Tectonics of Part of the Vinodol Valley Within the Model of the Continental Crust Subduction

Geologia Croatica, 2010
The Vinodol valley is analysed as an example of one of the unitedzones of shallow continental subduction. The structural analysistogether with the interpretation of structural dynamics of the centralpart of the valley is performed in that sense.
Ivan Blašković
doaj   +1 more source

Lithospheric Unzipping Explaining Hot Orogenesis During Continental Subduction

Tectonics
AbstractPhanerozoic accretionary orogens typically contain upper crustal nappes derived from subducted lithosphere—oceanic or continental—that display (ultra‐)high‐pressure, low‐temperature ((U)HP‐LT) metamorphism. Surprisingly, such orogens often also contain coeval continent‐derived nappes that underwent “Barrovian” (MP‐HT) syn‐burial metamorphism ...
Douwe van Hinsbergen, Thomas Lamont, Carl Guilmette   +2 more
openaire   +2 more sources

Wilson study cycles: Research relative to ocean geodynamic cycles [PDF]

The effects of conversion of Atlantic (rifted) margins to convergent plate boundaries; oceanic plateaus at subduction zones; continental collision and tectonic escape; southern Africa rifts; and global hot spot distribution on long term development of ...
Kidd, W. S. F.
core   +1 more source

Numerical simulations of an ocean/continent convergent system: influence of subduction geometry and mantle wedge hydration on crustal recycling

, 2009
The effects of the hydration mechanism on continental crust recycling are analyzed through a 2D finite element thermo-mechanical model. Oceanic slab dehydration and consequent mantle wedge hydration are implemented using a dynamic method.
A. M. Marotta, Agard, Arcay, Babist, Baldwin, Ballevre, Bernard-Griffiths, Best, Bosse, Brun, Chemenda, Chopra, Christensen, Clift, Cloos, Cloos, Cloos, Compagnoni, Dal Piaz, Doglioni, Dubois, Ernst, Ernst, Faccenda, Faccenda, Gazzola, Gerya, Gerya, Gerya, Gerya, Gosso, Groppo, Guillot, Haenel, Hattori, Honda, Juteau, Karato, Kirby, Lallemand, Lapen, Leech, Liu, M. I. Spalla, M. Roda, Marotta, Marotta, Meda, Patrick, Platt, Pognante, Pognante, Polino, Ranalli, Ring, Rondenay, Rossetti, Rubatto, Schmidt, Spalla, Stöckhert, Tao, Thomson, Thöni, Till, Warren, Whitney, Yamato, Yamato, Zanoni, Zucali, Zucali, Zucali   +72 more
core   +3 more sources

Earth's middle age [PDF]

, 2014
This research was funded through Natural Environment Research Council (grant NE/J021822/1) and the APC was paid through the RCUK OA block grant.Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and ...
Cawood, Peter Anthony, Hawkesworth, Chris   +1 more
core   +1 more source

Multi‐Stage Magmatism During Slab Exhumation Drives the Geochemical Evolution of Continental Crust: Insights From Paleozoic Granitoids in South Altyn, Western China

Geochemistry, Geophysics, Geosystems
The present continental crust is characterized by a felsic upper crust and a mafic lower crust, resulting from significant geochemical differentiation over geological time.
Long Tian, Liang Liu, Danling Chen, Yuting Cao, Yongsheng Gai, Tuo Ma, Qian Wang, Lei Kang   +7 more
doaj   +1 more source

The Mesozoic Subduction Zone over the Dongsha Waters of the South China Sea and Its Significance in Gas Hydrate Accumulation

Journal of Marine Science and Engineering
The Mesozoic subduction zone over the Dongsha Waters (DSWs) of the South China Sea (SCS) is a part of the westward subduction of the ancient Pacific plate.
Pibo Su, Zhongquan Zhao, Kangshou Zhang
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 ...
Duggen, Svend, Garbe-Schönberg, Dieter, Hoernle, Kaj, Mocek, Beate, van den Bogaard, Paul   +4 more
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