Results 31 to 40 of about 376,087 (268)

From subduction to collision in the northern Tibetan plateau : evidence from the early Silurian clastic rocks, northwestern China [PDF]

open access: yes, 2012
The Qilian Orogen records early Paleozoic collisional suturing of the Qaidam Block and the Central Qilian Block to the North China Craton. The composition and U-Pb age of detrital zircons and the composition of Cr-spinels from the Early Silurian ...
Jianghai Yang   +7 more
core   +1 more source

Continental response to active ridge subduction [PDF]

open access: yesGeophysical Research Letters, 2006
Apatite fission track ages from a ∼2000 m elevation transect from the Patagonian fold and thrust belt (47.5°S) allow us to quantify the denudational and orographic response of the upper plate to active ridge subduction. Accelerated cooling started at 17 Ma, predating the onset of ridge collision (14–10 Ma), and was followed by reheating between 10 and ...
Haschke, Michael   +4 more
openaire   +2 more sources

Light Mo Isotopes of Post‐Collisional Ultrapotassic Rocks in Southern Tibet Derived From Subducted Indian Continental Crust

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Recycling of molybdenum isotopes in continental subduction zones remains debated. In this contribution, we re‐visit the Mo isotope compositions of the Sailipu post‐collisional ultrapotassic rocks in the Himalaya‐southern Tibet orogen. These ultrapotassic
Miao‐Yan Zhang   +10 more
doaj   +1 more source

Two-sided asymmetric subduction; implications for tectonomagmatic and metallogenic evolution of the Lut Block, Eastern Iran [PDF]

open access: yes, 2011
West directed subduction zones show common characteristics, such as low structural elevation, deep trench, steep slab and a conjugate back-arc basin that are opposite to those of the east directed subduction zones.
Jose Francisco Santos   +11 more
core   +1 more source

Continental growth and the crustal record [PDF]

open access: yes, 2013
Funding: Natural Environment Research Council (NERC) (grant NE/J021822/1) and the University of St. Andrews.The continental crust is the archive of Earth history.
Hawkesworth, Chris   +2 more
core   +1 more source

Early Paleozoic Continental Arc Mafic Magmatism in the North Qaidam Tectonic Belt: Implications for Subduction of the Proto-Tethyan Oceanic Lithosphere

open access: yesLithosphere, 2022
The North Qaidam tectonic belt is characterized by the development of high-pressure to ultrahigh-pressure eclogite formed during deep subduction of the continental lithosphere.
Xiucai Li   +8 more
doaj   +1 more source

The consequences of crustal melting in continental subduction [PDF]

open access: yesLithosphere, 2009
Orogens grow in part by thrusting and burial of continental crust, in some cases, into the mantle by continental subduction. Deeply buried continental crust may partially melt during ascent, adding magma to the overlying continental crust, creating a continental plateau, and accounting for the large melt volumes observed in modern and ancient orogens ...
Donna L. Whitney   +2 more
openaire   +1 more source

From oceanic to continental subduction: Implications for the geochemical and redox evolution of the supra-subduction mantle [PDF]

open access: yesGeosphere, 2018
Processes taking place in subduction zones are the main controller of the chemical cycle of volatile and incompatible elements in the Earth system. Metamorphic devolatilization reactions occurring during slab burial play a key role in the transfer of elements to the supra-subduction mantle, from forearc to sub-arc depth.
Cannaò, E, Malaspina, N
openaire   +3 more sources

Arc-Type Magmatism Due to Continental-Edge Plowing Through Ancient Subduction-Enriched Mantle [PDF]

open access: yes, 2020
The puzzling
Structural geology and EM   +8 more
core   +2 more sources

Ocean-continent subduction cannot be initiated without preceding intra-oceanic subduction!

open access: yesFrontiers in Earth Science, 2022
The formation of new subduction zones is a key element of plate tectonics and the Wilson cycle, and many different controlling mechanisms have been proposed to initiate subduction.
Alexander Koptev   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy