Results 101 to 110 of about 13,990 (220)
Convergent flow in a two-layer system and mountain building [PDF]
, 2010 With the purpose of modelling the process of mountain building, we investigate the evolution of the ridge produced by the convergent motion of a system consisting of two layers of liquids that differ in density and viscosity to simulate the crust and the
Gratton, Julio, Perazzo, Carlos Alberto
core +4 more sources
Harry Hess and sea-floor spreading [PDF]
, 1999 Harry Hess's hypothesis of sea-floor spreading brought together his long-standing interests in island arcs, oceanic topography, and the oceanic crust. The one unique feature of Hess's hypothesis was the origin of the oceanic crust as a hydration rind on ...
Allwardt, Alan O.
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Shear wave structure of a transect of the Los Angeles basin from multimode surface waves and H/V spectral ratio analysis [PDF]
, 2020 We use broad-band stations of the ‘Los Angeles Syncline Seismic Interferometry Experiment’ (LASSIE) to perform a joint inversion of the Horizontal to Vertical spectral ratios (H/V) and multimode dispersion curves (phase and group velocity) for both ...
Beroza, Gregory C. +3 more
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Depth-dependent density change within the continental upper mantle
Contributions to Geophysics and Geodesy, 2012 The empirical model of the depth-dependent density change within the upper continental mantle is derived in this study. The density of the upper(most) mantle underlying the continental crust is obtained from the estimated values of the crust–mantle (Moho)
Robert TENZER +2 more
doaj +1 more source
The distribution of Moho depths beneath the Arabian plate and margins
Tectonophysics, 2013 In this study three new maps of Moho depths beneath the Arabian plate and margins are presented. The first map is based on the combined gravity model, EIGEN 06C, which includes data from satellite missions and ground-based studies, and thus covers the whole region between 31 degrees E and 60 inverted perpendicular E and between 12 degrees N and 36 ...
Mechie, James (Dr.) +6 more
openaire +6 more sources
Progress in Earth and Planetary ScienceThis study aims to quantify the topography of the Moho boundary, the lower crust and uppermost mantle contact of Egypt, in order to estimate the crustal thickness variation and its link to the distribution of thermal anomalies under Egypt.
Ahmed Mohamed Bekhit +4 more
doaj +1 more source
Reconciling Seismic and Thermo‐Chemical Models of Cratonic Lithosphere
Geochemistry, Geophysics, GeosystemsMost published global and regional shear‐wave (VS) velocity models of cratons include a VS increase with depth below the Moho, with a maximum at 100–150 km depth.
Sefira Davison +5 more
doaj +1 more source
Relation between crustal stress and thickness of earth's crust [PDF]
Podzemni Radovi, 2019 Available models for estimation of crustal stress consider the vertical stress component as weight of above laying rocks, while horizontal stress components are estimated as function of vertical component.
Torbica Slavko, Lapčević Veljko
doaj
Contributions to Geophysics and Geodesy, 2009 We investigate globally the correlation of the step-wise consolidated crust- stripped gravity field quantities with the topography, bathymetry, and the Moho bound- ary. Global correlations are quantified in terms of Pearson’s correlation coefficient.
Robert TENZER, K HAMAYUN, Peter VAJDA
doaj +1 more source
Update Heat Flow Density Map for Portugal [PDF]
, 2010 New thermal conductivity, heat production and temperature data obtained in Portugal were used to produce a new heat flow density map. Heat flow density values in Portugal vary between 42 and 115 mW/m2 and allow the extrapolation of temperatures to depths
Correia, Antonio, Ramalho, Elsa Cristina
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