Results 21 to 30 of about 1,186 (179)
Sub‐Lithospheric Small‐Scale Convection Tomographically Imaged Beneath the Pacific Plate
Geophysical Research Letters, 2022 Small‐scale convection beneath the oceanic plates has been invoked to explain off‐axis nonplume volcanism, departure from simple seafloor depth‐age relationships, and intraplate gravity lineations.
Zachary C. Eilon +4 more
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Dizhen xuebao, 2021 2010年智利马乌莱MW8.8地震发生在纳斯卡板块与南美板块的板块边界处，引起了显著的同震和震后效应。GPS台网数据显示记录到的同震海向位移最大约5 m，垂向沉降最大约50 cm。在经过对俯冲效应、季节变化等效应的校正后，震后6年的海向最大位移约68 cm，垂向抬升最大约20 cm。马乌莱地震显著的震后形变对该区域的地下三维黏弹性结构有良好的约束。本文建立了智利中南部俯冲带区域的三维有限元模型，黏弹性的地幔楔及海洋地幔均使用伯格斯体材料，并在断层面上设置2 km厚的软弱层以模拟震后余滑 ...
Yixing Zhang +2 more
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Annals of Geophysics, 1999 The separation of the field produced by different internal sources can be accomplished by means of the so-called spatial spectrum of the geomagnetic field of internal origin.
X. Q. Gao +3 more
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Геодинамика и тектонофизика, 2015 A comparative study of major elements, trace elements, and isotopes in high- and moderate-Mg volcanic sequences of 16–14 and 14–13 Ma, respectively, has been performed in the Bereya volcanic center.
I. S. Chuvashova +5 more
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Geophysical model of the mantle ore-forming system
Геофизический журнал, 2019 The paper deals with a generalized geophysical model of the mantle ore-forming system that covers three main parts: a) the area of origin of the ore substance; b) its transportation zone and c) the area of concentrated ore-formation ― a deposit.
D. Yosifov, R. Radichev
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Геофизический журнал, 2018 The continuous DOBREfraction’99/DOBRE-2 WARR and CDP profile of 775 km length with about 100 km overlap was acquired by an international team from Ukraine, Poland, Denmark, USA, Netherlands, Germany, Great Britain and Norway in 1996 and 2007 ...
I. Pashkevich +5 more
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Geodesy and Geodynamics, 2019 The average density of 3300 kg m−3 is often attributed for the asthenosphere. In this study, we inspect this value by estimating the average value of the (upper) asthenosphere based on applying the gravimetric forward modelling of major known ...
Wenjin Chen, Robert Tenzer
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Data Science Journal, 2009 Fifty years have passed since the International Geophysical Year (IGY) of 1957.58, one of the most important and noble initiatives in the history of science and in the history of humanity in general.
A G Rodnikov +2 more
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Carbonatite Melts and Electrical Conductivity in the Asthenosphere [PDF]
Science, 2008 Electrically conductive regions in Earth's mantle have been interpreted to reflect the presence of either silicate melt or water dissolved in olivine. On the basis of laboratory measurements, we show that molten carbonates have electrical conductivities that are three orders of magnitude higher than those of molten silicate and five orders of magnitude
Gaillard, Fabrice +4 more
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Geochemistry, Geophysics, Geosystems, 2023 Rapid plate motion, alongside pronounced variations in age and thickness of the Australian continental lithosphere, makes it an excellent location to assess the relationship between seismic anisotropy and lithosphere‐asthenosphere dynamics. In this study,
C. M. Eakin +4 more
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