Results 71 to 80 of about 384 (188)

Spatiotemporal Characteristics of Tectonic Tremors in the Collisional Orogen of Taiwan

open access: yesGeophysical Research Letters
Taiwan offers a distinctive tectonic setting as a collisional orogen, ideal for studying tectonic tremors and the slow deformation process in the mountain‐building process.
Satoshi Ide, Kate Huihsuan Chen
doaj   +1 more source

Continental crust recycling in collisional zones: insights from Li isotope compositions of the syn-exhumation and post-collisional mafic magmatic rocks

open access: yesFrontiers in Earth Science
Syn-exhumation and post-collisional mafic magmatism in continental collision orogenic belts may provide insights into the nature of orogenic lithospheric mantle and recycled continental components in continental subduction zones. Lithium and its isotopes
Guo-Chao Sun   +7 more
doaj   +1 more source

Thermal cracking - key parameter for increasing rock permeability [PDF]

open access: yesНефтегазовая геология: Теория и практика
The thermal cracking and rock permeability enlarging are important key parameters controlling the flow capacity. Strictly impermeable rocks (igneous rocks, gneiss, quartz sandstone, etc) during the burial type of deformation (yo-yo tectonics with ...
Morariu D., Averyanova O.Yu.
doaj  

Post-collisional lithosphere delamination of the Dabie-Sulu orogen

open access: yesChinese Science Bulletin, 2002
The consistence between the first rapid cooling time (226–219 Ma) of the untrahigh pressure metamorphic (UHPM) rocks in the Dabie Mountains and the formation time (205–220 Ma) of the syncollisional granites in the Qinling and Sulu areas suggests that the first rapid cooling and uplift of the UHPM rocks may be related to breakoff of subducted plate ...
openaire   +1 more source

Heterogeneous Mantle Metasomatism Controlled by Continental Subduction: Evidence From Post‐Collisional Mafic Rocks in the North Qaidam Orogen

open access: yesGeochemistry, Geophysics, Geosystems
Post‐collisional mafic rocks not only record geodynamic processes at the end of the orogenic cycle but also retain various clues regarding preceding interactions between subducted slabs and mantle wedges.
Xiangyu Gao   +7 more
doaj   +1 more source

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

open access: yesGeochemistry, Geophysics, Geosystems
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 ...
Qing‐Chen Yang   +4 more
doaj   +1 more source

The Addition of Felsic Sediments to the Lower Continental Crust During the Variscan Orogeny

open access: yesGeochemistry, Geophysics, Geosystems
Lower crustal metasedimentary xenoliths (garnet‐sillimanite granulites) from the Bournac breccia pipe in the Massif Central, France, provide a robust example of sediments transported to depth and incorporated into stable lower continental crust during a ...
M. F. Ringwood   +2 more
doaj   +1 more source

High-K, I-type Tonian post-collisional magmatism in the South Delhi Terrane, NW India: Petrogenetic and tectonic implications

open access: yesGeosystems and Geoenvironment
The limited whole-rock geochemical data of the granitoids exposed in the southern domain of the South Delhi Terrane, Aravalli orogen, northwestern India characterised these rocks as subduction-related continental arc I-type granites.
Manisha   +2 more
doaj   +1 more source

Massive crustal carbon mobilization and emission driven by India underthrusting Asia

open access: yesCommunications Earth & Environment
The active Himalayan-Tibetan orogen, where India underthrusts into Asia, is an important geological source of carbon dioxide (CO2) emission into Earth’s atmosphere.
Wei Liu   +10 more
doaj   +1 more source

Unveiling Cenozoic Volcanism in the Takab‐Shahindezh Area Induced by Slab‐Mantle Interaction in the Zagros Orogen, NW Iran

open access: yesGeochemistry, Geophysics, Geosystems
The Zagros orogen records the closure of the Neotethys Ocean by northward subduction of the oceanic slab beneath the Iranian plate. Northwestern Iran has undergone episodic volcanism since the Eocene, due to a shift of tectonic regimes from subduction to
Farzaneh Shakerardakani   +5 more
doaj   +1 more source

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