Results 91 to 100 of about 376,087 (268)

U–Pb Dating of Cambrian Magmatism in the Pinerolo‐Sanfront Unit, Dora‐Maira Massif (Western Alps)

Terra Nova, EarlyView.
ABSTRACT The Pinerolo‐Sanfront Unit (PSU), the structurally lowest tectonic unit of the Dora‐Maira Massif (Western Alps), has been regarded as a monocyclic unit composed of Permo‐Carboniferous sediments and Permian granitoids that were metamorphosed during the Alpine orogeny.
Francesco De Cesari, Davide Dana, Salvatore Iaccarino, Chiara Montomoli, Alberto Corno, Daniela Rubatto, Rodolfo Carosi   +6 more
wiley   +1 more source

Multi‐Mineral Geochronology Across the Neoproterozoic Brasília Nappe Stack: Constraints on Thermal Resetting and Metamorphic Architecture

Terra Nova, EarlyView.
ABSTRACT The Southern Brasília Orogen formed during Western Gondwana's final assembly and comprises nappe systems piled against the São Francisco Craton. We present new rutile U–Pb ages from the lowermost Canastra Group (> 2.2 Ga) and the uppermost Carrancas Group (~560 Ma), integrated with published zircon, monazite, garnet, and mica ages from the ...
Rodrigo Irineu Cerri, Alex J. Choupina A. Silva, Tamiris Pagotti Gonçalves Pinto, Rodrigo Prudente de Melo, George Luiz Luvizotto, Regiane Andrade Fumes, Fabrício de Andrade Caxito, Renato Moraes   +7 more
wiley   +1 more source

Newly recognized retrograde eclogites overprinted by high temperature metamorphism in Amdo microcontinent, Central Tibet: Implications for subduction erosion during continental subduction

, 2022
supplementary material of "Newly recognized retrograde eclogites overprinted by high temperature metamorphism in Amdo microcontinent, Central Tibet: Implications for subduction erosion during continental subduction"THIS DATASET IS ARCHIVED AT
Peng, Y (via Mendeley Data), Peng, Yinbiao   +1 more
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

A numerical study of the dynamics of subduction [PDF]

, 1988
The mechanics and dynamics of subduction have been studied using 2-D finite element analysis. Two finite element formulations have been employed; one formulation for Newtonian viscous flow and one formulation for linear elasticity and viscoelasticity ...
Whittaker, A.
core  

Microcontinents and Continental Fragments Associated With Subduction Systems

, 2020
Microcontinents and continental fragments are small pieces of continental crust that are surrounded by oceanic lithosphere. Although classically associated with passive margin formation, here we present several preserved microcontinents and continental ...
J. M. van den Broek, C. Gaina, Gaina, Carmen, van den Broek, Joost Martijn   +3 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

Changing Sources of Magma Generation Beneath Intra-Oceanic Islands Arcs: An Insight From the Juvenile Kohistan Island Arc, Pakistan Himalaya [PDF]

, 2006
The Kohistan arc, situated in the Pakistan Himalaya, is a Cretaceous intraoceanic island arc which was initiated during the northward movement of the Indian Plate. The arc was sutured to Asia at ca. 100 Ma.
Petford, Nick; id_orcid, Treloar, Peter J., Petford, Nick, Bignold, Stella M., Bignold, Stella   +4 more
core   +1 more source

Subduction zone magmatism

, 1995
The physical and chemical processes that occur during the subduction of two converging tectonic plates have significant consequences, contributing to both the growth of the continental crust and the chemical and thermal evolution of the Earth's interior.
Eggins, S., Tatsumi, Y.
core