Results 91 to 100 of about 40,183 (305)

Numerical Geodynamic Modeling of Buoyancy‐Driven Tethyan‐type Ophiolite Emplacement

Tectonics, Volume 44, Issue 8, August 2025.
Abstract Ophiolites are exposed remnants of oceanic lithosphere that avoid subduction and are instead subaerially exposed, being usually emplaced onto a continental domain. One proposed emplacement mechanism, the Tethyan‐type, requires the subduction of a continental margin beneath an oceanic overriding plate (OP) and subsequent exhumation of the ...
A. S. Gomes, F. M. Rosas, N. Riel, W. P. Schellart, J. Almeida, J. C. Duarte   +5 more
wiley   +1 more source

A pre-Rodinian ophiolite involved in the Variscan suture of Galicia (Cabo Ortegal Complex, NW Spain) [PDF]

, 2006
U–Pb dating of zircons from a metagabbro of the Purrido amphibolitic unit (Cabo Ortegal Complex, NW Iberian Massif) yielded an age of 1159 ± 39 Ma, interpreted to approximate the crystallization age of the gabbroic protolith.
Arenas Martín, Ricardo, Fernández Suárez, Javier, García Sánchez, Raquel, Jeffries, Teresa E., Sánchez Martínez, Sonia   +4 more
core   +2 more sources

Crust‐Mantle Interaction During Continental Deep Subduction: Evidence From Light Mo Isotopes in Post‐Collisional Mafic Igneous Rocks From the East Kunlun Orogen

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.
Abstract It is intriguing whether and how crust‐mantle interaction would proceed in continental subduction zones. Here, we report zircon U‐Pb ages and Hf isotopes, major and trace elements, and Sr‐Nd‐Mo isotopes for Late Paleozoic mafic igneous rocks from the East Kunlun orogen (EKO).
Qing‐Chen Yang, Wei Fang, Li‐Qun Dai, Li‐Tao Ma, Zi‐Fu Zhao   +4 more
wiley   +1 more source

Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]

, 1984
The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Gunn, A.G., Leake, R.C., Styles, M.T.
core  

Seismic Structure and the Variation of Magmatic Budget in the Southwest Sub‐Basin of the South China Sea

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract The oceanic lithospheric structure is key to understanding the processes related to the interplay between tectonics and magmatism from the end of rifting to the onset and cessation of seafloor spreading. In the oceanic basin of the South China Sea (SCS), the Southwest Sub‐basin (SWSB) is the last‐opening segment before the abandonment of ...
Jiazheng Zhang, Yuhan Li, Yongjian Yao, Minghui Zhao, Ingo Grevemeyer, Valenti Sallares, Rongwei Zhu, Lijie Wang, César R. Ranero   +8 more
wiley   +1 more source

Rare earth geochemistry of Arenig cherts from the Ballantrae Ophiolite and Leadhills Imbricate Zone, southern Scotland: implications for origin and significance to the Caledonian Orongeny [PDF]

, 1999
Rare earth element (REE) data from low to mid-Arenig cherts are used to test competing models for the early Ordovician evolution of the Laurentian margin in the northern British Isles.
Armstrong, H.A., Floyd, J.D., Owen, A.W.
core  

Application of imaging spectrometer data to the Kings-Kaweah ophiolite melange [PDF]

The Kings-Kaweah ophiolite melange in east-central California is thought to be an obducted oceanic fracture zone and provides the rare opportunity to examine in detail the complex nature of this type of terrain.
Mustard, John F., Pieters, Carle M.
core   +1 more source

Dynamics of intraoceanic subduction initiation: 1. Oceanic detachment fault inversion and the formation of supra-subduction zone ophiolites [PDF]

, 2015
Subduction initiation is a critical link in the plate tectonic cycle. Intraoceanic subduction zones can form along transform faults and fracture zones, but how subduction nucleates parallel to mid-ocean ridges, as in e.g., the Neotethys Ocean during the ...
Agard, Allerton, Allken, Amiguet, Andreani, Antony Morris, Bach, Bach, Baines, Barth, Barth, Beard, Beccaluva, Beccaluva, Blackman, Blackman, Bortolotti, Bortolotti, Bortolotti, Bortolotti, Bortolotti, Boschi, Boschi, Boschi, Buiter, Cann, Cannat, Carosi, Casey, Cedric Thieulot, Chiari, Chiari, Chiari, Chiari, Dewey, Dick, Dilek, Dimo-Lahitte, Douwe J. J. van Hinsbergen, Escartin, Escartín, Escartín, Escartín, Escartín, Gaggero, Gaina, Garcés, Gerya, Gray, Grimes, Guillot, Gurnis, Hall, Hilairet, Hinsbergen, Ildefonse, Ishizuka, Jenner, Karato, Karson, Klein, Leng, Leng, Liati, Mackwell, MacLeod, MacLeod, MacLeod, Maffione, Maffione, Marco Maffione, Marcucci, Marcucci, McKenzie, Meshi, Moore, Moore, Moores, Morris, Morris, Mével, Nicolas, Oliver Plümper, Pearce, Plümper, Plümper, Prela, Prela, Reagan, Reston, Robertson, Roddick, Saccani, Saccani, Sauter, Scherreiks, Schmid, Schroeder, Schroeder, Shervais, Smith, Smith, Smith, Spray, Spray, Stern, Stern, Stern, Thieulot, Torsvik, Toth, Tremblay, Tremblay, Tucholke, van Hinsbergen, Vissers, Whitney, Wim Spakman   +117 more
core   +2 more sources

Record of Jurassic mass transport processes through the orogenic cycle: Understanding chaotic rock units in the high-pressure Zermatt-Saas ophiolite (Western Alps) [PDF]

, 2017
The eclogite facies Zermatt-Saas ophiolite in the Western Alps includes a composite chaotic unit exposed in the Lake Miserin area, in the southern Aosta Valley region.
Balestro, Gianni, Benciolini, Luca, Festa, Andrea, Tartarotti, Paola   +3 more
core   +3 more sources

Geochemistry of amphibolites and related graphitic gneisses from the Suchý and Malá Magura Mountains (central Western Carpathians) – evidence for relics of the Variscan ophiolite complex

Geologica Carpathica, 2015
Three small bodies of amphibolites and associated graphitic gneisses from the Suchý and Malá Magura Mountains (Tatric Megaunit, central Western Carpathians) have been studied by petrographic and geochemical methods.
Ivan Peter, Méres Štefan
doaj   +1 more source