Results 1 to 10 of about 25,796 (267)
Seismic evidence for partial melt below tectonic plates [PDF]
Nature, 2020 <p>The seismic low-velocity zone (LVZ) of the upper mantle is generally associated with a low-viscosity asthenosphere that has a key role in decoupling tectonic plates from the mantle. However, the origin of the LVZ remains unclear. Some studies attribute its low seismic velocities to a small amount of partial melt of minerals in the ...
Debayle, Eric +3 more
openaire +6 more sources
Modelling S-Wave Velocity Structure Beneath the Central Main Ethiopian Rift Using Receiver Functions
Frontiers in Earth Science, 2022 We applied the receiver function (RF) technique on high-quality teleseismic earthquake data recorded by the RiftVolc broadband network from February 2016 to October 2017.
Birhanu A. Kibret +3 more
doaj +1 more source
A Review of Subsurface Electrical Conductivity Anomalies in Magnetotelluric Imaging
Sensors, 2023 After 70 years of development, magnetotelluric (MT), a remote sensing technique for subsurface electrical resistivity imaging, has been widely applied in resource exploration and the deep tectonic evolution of the Earth.
Wule Lin, Bo Yang, Bo Han, Xiangyun Hu
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Frontiers in Earth Science, 2023 In magma-rich continental rifts extension by magma intrusion is thought to accommodate much of the extension. We aim to constrain major melt reservoirs in the crust during magma-rich rifting by applying P-to-S receiver functions (RFs) using legacy ...
Birhanu Abera Kibret +3 more
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Frontiers in Earth Science, 2020 The Early Cretaceous volcanic-arc granitic rocks from Kyushu, SW Japan are contemporaneous with the granitic rocks of the Yanshan Orogeny (SE China) along the eastern Eurasian continental margin. The secular geochemical variations of the whole-rock major
Kenshi Suga, Meng-Wan Yeh
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Geochemistry, Geophysics, Geosystems, 2022 With a small fraction of marginal subduction zones, the driving mechanism for the North American plate motion is in debate. We construct global mantle flow models simultaneously constrained by geoid and plate motions to investigate the driving forces for
Shangxin Liu, Scott D. King
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Geochemistry, Geophysics, Geosystems, 2020 Changbaishan/Paektu volcano straddles the border between the Democratic People's Republic of Korea and China. It was responsible for one of the largest eruptions in history, the “Millennium Eruption' of 946 CE. An episode of unrest between 2002 and 2005,
James O. S. Hammond +5 more
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X-ray diffraction study of structure of CaO-Al2O3-SiO2 ternary compounds in molten and crystalline states [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2020 Anorthite and gehlenite crystalline structure and short-range order of anorthite melt have been studied by X-ray diffraction in the temperature range from room temperature up to ~ 1923 K.
Sokol’skii V.E. +6 more
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Compositional Data Analysis (CoDA) of Clinopyroxene From Abyssal Peridotites
Geochemistry, Geophysics, Geosystems, 2022 We analyze a large database of abyssal peridotite clinopyroxene compositions using log‐ratio transformation, principal component analysis (PCA) and k‐means clustering, to better understand clinopyroxene compositional systematics in abyssal peridotites ...
I. Nishio +5 more
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Geophysical and Geochemical Constraints on Neogene‐Recent Volcanism in the North American Cordillera
Geochemistry, Geophysics, Geosystems, 2021 Widespread recent volcanic rocks occur across the Cordillera landward of the current/recent volcanic arc Mexico to Alaska and most other subduction backarcs.
Roy D. Hyndman, Dante Canil
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