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Variations in the Composition of MORB Chilled Glasses from the Mid-Atlantic Ridge, 12°–31° N: Reflection of Compositional Evolution of Parental Melts and the Influence of a Hydrothermal Component
The geochemical peculiarities of sample collection of MORB chilled glasses obtained in six areas of the axial zone of the Mid-Atlantic Ridge (MAR),...
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Revisiting geochemical perspectives on degassing of the subcontinental lithospheric mantle
In general, mantle-derived volatiles are mainly released into the atmosphere through volcanoes in mid-ocean ridges and subduction zones. However,...
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Geochronology and Geochemistry of Late Devonian I- and A-Type Granites from the **ng’an Block, NE China: Implications for Slab Break-off during Subduction of the Hegenshan-Heihe Ocean
We present detailed geochronological, geochemical, and zircon Hf isotopic data for Late Paleozoic granitic rocks from Handagai and Zhonghe plutons in...
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A Geodynamic Model of the Evolution of the Earth’s Crust of the Alpha Ridge–Mendeleev Rise and the Podvodnikov Basin in the Mid-Cretaceous
AbstractWe propose a geodynamic model capable of explaining the formation of structural features of the Earth’s crust in the Amerasian Basin. The...
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The Death Throes of the Tethys Seaway and the Birth Pangs of the Red Sea: The Geodynamics of the Levant
As the Tethys Seaway closed in the tectonic domain of the Levant, it left behind two branches. The continental collision occurs in the eastern branch...
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Accretionary complex: Geological records from oceanic subduction to continental deep subduction
Accretionary complex was usually formed by offscra** of the subducting crustal material over the trench and thus often referred to as subduction...
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Timing and mechanism of opening the Neo-Tethys Ocean: Constraints from mélanges in the Yarlung Zangbo suture zone
The evolution and final closure of the Neo-Tethys Ocean are one of the most important geological events that have occurred on Earth since the...
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Blastomylonite Complexes of the Western Yenisei Ridge (Eastern Siberia, Russia): Geological Position, Metamorphic Evolution and Geodynamic Models
AbstractMetapelites and metabasites within the Yenisei regional shear zone of the Yenisei Ridge underwent strong deformations with substrate...
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Petrology and Mineral Chemistry of the Oligocene–Miocene Qazan Granitoids from Central Urumieh-Dokhtar Magmatic Arc, Iran: Implications for the Neo-Tethyan Subduction
AbstractThe Urumieh-Dokhtar Magmatic Arc (UDMA) appears as a nearly linear suite of magmatic rocks that extends from NW to SE Iran parallel with the...
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Morphology and multifractal features of a guyot in specific topographic vicinity in the Caroline Ridge, West Pacific
Massive seamounts have been surveyed and documented in the last decades. However, the morphologies of seamounts are usually described in qualitative...
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Geochronology and geochemistry of the Bashikaogong S-type granitic rocks: a record of Early Paleozoic subduction and collision in North Altun, Northwestern China
The Altun orogenic belt (AOB) was the site of complex subduction of oceanic crust and continental collision during the Paleozoic. The North Altun...
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Osmium and zinc isotope constraints on the origin of chromitites from the Yarlung-Zangbo ophiolites, Tibet, China
Chromitites or chromite mineralization of varying degrees has been discovered in the various ophiolites along the east–west trending Yarlung-Zangbo...
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The Heilongjiang Complex as a Fragment of a Jurassic Accretionary Wedge in the Tectonic Windows of the Overlying Plate: A Flat Slab Subduction Model
AbstractThe Circum-Pacific Late Albian–Cenomanian orogenic belts (including the Sikhote-Alin–Western Sakhalin belt) were formed as a result of the...
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Relationships of Surface Geological and Geophysical Characteristics with the Deep Structure of the Mid-Atlantic Ridge According to Seismic Tomography Data
Abstract —A retrospective analysis of seismic tomography models with different levels of detail along the Mid-Atlantic Ridge (MAR) has shown that...
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The progressive onset and evolution of Precambrian subduction and plate tectonics
The regime of plate tectonics on early Earth is one of the fundamental problems in Earth sciences. Precambrian era takes the majority (ca. 88%) of...
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Ancient slabs beneath Arctic and surroundings: Izanagi, Farallon, and in-betweens
A detailed 3-D tomographic model of the whole mantle beneath the northern hemisphere (north of ~ 30°N latitude) is obtained by inverting a large...
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Mantle wedge oxidation from deserpentinization modulated by sediment-derived fluids
High-pressure dehydration of serpentinite during subduction generates fluids that flux and melt the overlying mantle wedge, forming primary arc...
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Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic observations
The study of slow earthquake activity, which occurs in the shallow and deep sides of seismogenic zone, is crucial for understanding subduction zones,...
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Seismotectonic significance of the December 1, 2020 Haridwar, India earthquake (M 4.3), a lower crust event near the Himalayan topographic front
Earthquakes in the Himalayan arc occur due to the interaction of Indian and Eurasian plates, and a great majority of them are of interplate type,...
