Results 61 to 70 of about 220,882 (295)
Robust Seismic Images of the Hawaiian Plume
Geophysical Research Letters, 2022 To image the Hawaiian plume and the plume‐lithosphere interaction, we determine a robust 3‐D shear‐wave velocity (Vs) model of the upper mantle and the mantle transition zone (MTZ) beneath Hawaii by jointly inverting teleseismic S‐wave arrival times ...
Chuanwei Ye +3 more
doaj +1 more source
Ab initio study of the elastic behavior of MgSiO3 ilmenite at high pressure [PDF]
, 2002 We investigate the athermal high pressure behavior of the elastic properties of MgSiO3 ilmenite up to 30 GPa using the ab initio pseudopotential method. Our results at zero pressure are in good agreement with single-crystal elasticity measurements.
Da Silva, CRS +3 more
core +1 more source
Geochemistry Geophysics Geosystems, 2019 There exists much debate about origins of Cretaceous to present volcanism in northeast (NE) China. Here we present high‐resolution seismic images of the upper mantle beneath NE China obtained by inverting P wave traveltime data recorded by two dense ...
Wei Wei +5 more
semanticscholar +1 more source
Teleseismic Tomography for Imaging the Upper Mantle Beneath Northeast China
Applied Sciences, 2020 Tomographic imaging technology is a geophysical inversion method. According to the ray scanning, this method carries on the inversion calculation to the obtained information, and reconstructs the image of the parameter distribution rule of elastic wave ...
Zhuo Jia, Gongbo Zhang
doaj +1 more source
Constraints on Seismic Anisotropy in the Mantle Transition Zone From Long‐Period SS Precursors
Journal of Geophysical Research: Solid Earth, 2019 The mantle transition zone (MTZ) of Earth is demarcated by solid‐to‐solid phase changes of the mineral olivine that produce seismic discontinuities at 410 and 660‐km depths.
Quancheng Huang +3 more
semanticscholar +1 more source
Mantle transition zone beneath Eurasia
Geophysical Research Letters, 1996 Mantle Pds (Fig. 1) converted phases are detected in the records of 11 seismograph stations in easternmost Russia and China. These data reveal neither a strong depression on the 660‐km discontinuity nor a layer of partial melting atop the 410‐km discontinuity that were found previously beneath this region in studies using long‐period underside SH ...
Lev Vinnik +2 more
openaire +1 more source
S velocity reversal in the mantle transition zone [PDF]
Geophysical Research Letters, 2006 The transition zone differs from the rest of the mantle by high positive P and S wave velocity gradients. However, by applying S receiver function technique to recordings of about 50 globally distributed stations, in 7 regions we obtain evidence of negative discontinuity at a depth around 500 km.
Vinnik, L., Farra, V.
openaire +3 more sources
Siberian flood basalt magmatism and Mongolia-Okhotsk slab dehydration [PDF]
, 2008 Experimental data combined with numerical calculations suggest that fast subducting slabs are cold enough to carry into the deep mantle a significant portion of the water in antigorite, which transforms with increasing depth to phase A and then to phase ...
Alexei V. Ivanov, Konstantin D. Litasov
core +1 more source
Advanced Science, EarlyView.This review examines emerging combination immunotherapy strategies tailored to distinct tumor microenvironments and highlights next‐generation biomarkers that guide response prediction and treatment personalization. It integrates lessons from unsuccessful trials, addresses toxicity challenges, and outlines approaches for early biomarker discovery and ...
Asmita Pandey +6 more
wiley +1 more source
Seismic evidence of the Hainan mantle plume by receiver function analysis in southern China
Geophysical Research Letters, 2016 The Lei‐Qiong region is the largest igneous province in southern China and may be a surface expression of a mantle plume beneath the region (the Hainan mantle plume).
S. Shawn Wei, Y. John Chen
doaj +1 more source