Results 31 to 40 of about 45,915 (265)

A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic [PDF]

open access: yes, 2019
Global deep‐time plate motion models have traditionally followed a classical rigid plate approach, even though plate deformation is known to be significant.
Bower, Dan J.   +9 more
core   +1 more source

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

Continental subduction channel processes: Plate interface interaction during continental collision [PDF]

open access: yesChinese Science Bulletin, 2013
The study of subduction-zone processes is a key to development of the plate tectonic theory. Plate interface interaction is a basic mechanism for the mass and energy exchange between Earth’s surface and interior. By developing the subduction channel model into continental collision orogens, insights are provided into tectonic processes during ...
Zheng, YongFei   +2 more
openaire   +1 more source

Deep lithospheric structures along the southern central Chile Margin from wide-angle P-wave modellilng [PDF]

open access: yes, 2009
Crustal- and upper-mantle structures of the subduction zone in south central Chile, between 42 degrees S and 46 degrees S, are determined from seismic wide-angle reflection and refraction data, using the seismic ray tracing method to calculate minimum ...
A. Krabbenhoeft   +73 more
core   +1 more source

Deeply subducted continental fragments - Part 2: Insight from petrochronology in the central Sesia Zone (western Italian Alps) [PDF]

open access: yes, 2018
Subducted continental terranes commonly comprise an assembly of subunits that reflect the different tectono-metamorphic histories they experienced in the subduction zone.
Burn, Marco   +4 more
core   +3 more sources

From subduction to collision and subduction again, the drivers of crustal-scale deformation in the Hellenides-Aegean region

open access: yesComptes Rendus. Géoscience, 2023
In the 60s, the Hellenic belt was taken as the “Geosyncline model”. Here we take a modern look at this Hellenic/Aegean region which as a concentrate encompasses all the main geodynamic processes known in orogens.
Ferriere, Jacky   +2 more
doaj   +1 more source

Horizontal mantle flow controls subduction dynamics [PDF]

open access: yes, 2017
It is generally accepted that subduction is driven by downgoing-plate negative buoyancy. Yet plate age –the main control on buoyancy– exhibits little correlation with most of the present-day subduction velocities and slab dips. “West”-directed subduction
Dal Zilio, Luca   +3 more
core   +1 more source

H 2 O-fluid-saturated melting of subducted continental crust facilitates exhumation of ultrahigh-pressure rocks in continental subduction zones [PDF]

open access: yesEarth and Planetary Science Letters, 2015
We present two-dimensional numerical models of plate subduction and collision inspired by the Scandinavian Caledonian orogeny to investigate the possible impact of continental crust partial melting on the exhumation of ultra-high pressure metamorphic rocks.
Labrousse, Loic, Duretz, T., Gerya, T.
openaire   +2 more sources

Modeling pN2 through Geological Time: Implications for Planetary Climates and Atmospheric Biosignatures [PDF]

open access: yes, 2016
Nitrogen is a major nutrient for all life on Earth and could plausibly play a similar role in extraterrestrial biospheres. The major reservoir of nitrogen at Earth's surface is atmospheric N2, but recent studies have proposed that the size of this ...
Buick, R.   +5 more
core   +2 more sources

Hot, Wide, Continental Back-arcs Explain Earth’s Enigmatic mid-Proterozoic Magmatic and Metamorphic Record

open access: yesTektonika, 2023
Higher than average thermobaric ratios (temperature/pressure) of metamorphic rocks and abundant ‘dry’ ferroan magmatism including massif anorthosite suites are two enigmatic features of the mid-Proterozoic (1.85–0.85 Ga) that have unclear origins.
Nick Roberts   +3 more
doaj   +1 more source

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