Results 41 to 50 of about 72,842 (206)
Applicability of large-ion lithophile and high field strength element basalt discrimination diagrams
International Journal of Digital Earth, 2018 Basalt discriminant diagrams have been used to identify the tectonic setting of basaltic magmatism since the 1970s and have played an important role in reconstructing paleotectonic environments.
X. L. Liu +13 more
doaj +1 more source
Cosmic flow around local massive galaxies [PDF]
, 2017 Aims. We use accurate data on distances and radial velocities of galaxies around the Local Group, as well as around 14 other massive nearby groups, to estimate their radius of the zero-velocity surface, $R_0$, which separates any group against the global
Karachentsev, Igor D. +1 more
core +2 more sources
Progress in Earth and Planetary Science, 2021 This paper explores the evolutional process of back-arc basin (BAB) magma system at final spreading stage of extinct BAB, Shikoku Basin (Philippine Sea) and assesses its tectonic evolution using a newly discovered oceanic core complex, the Mado ...
Norikatsu Akizawa +15 more
doaj +1 more source
Frontiers in Earth Science, 2022 The abundance of mantle-derived rocks and lavas, in combination with its tectonic evolution, render Mexico a perfect laboratory to investigate the chemical and the isotopic heterogeneity of the lithospheric mantle.
Andres Sandoval-Velasquez +7 more
doaj +1 more source
Viscosity and viscosity anomalies of model silicates and magmas: a numerical investigation
, 2012 We present results for transport properties (diffusion and viscosity) using computer simulations. Focus is made on a densified binary sodium disilicate 2SiO$_2$-Na$_2$O (NS2) liquid and on multicomponent magmatic liquids (MORB, basalt). In the NS2 liquid,
Bauchy, M. +3 more
core +1 more source
Depletion ages and factors of MORB mantle sources
Earth and Planetary Science Letters, 2020 Abstract Sr-Nd-Hf-Pb isotopes show that the depleted MORB mantle (DMM) is not homogeneous. The heterogeneity is attributed to different ages of depletion and/or various degrees of depletion for a given domain of DMM, as well as multiple depletion events, metasomatism, and mixing between DMM and other mantle components.
Youxue Zhang, Ting Gan
openaire +2 more sources
, 2012 We combine density functional theory (DFT) within the local density approximation (LDA), the quasiharmonic approximation (QHA), and a model vibrational density of states (VDoS) to calculate elastic moduli and sound velocities of gamma-[Fe_x,Mg_(1-x ...
Abramson +59 more
core +1 more source
Development of the health and economic consequences of smoking interactive model [PDF]
, 2001 Objective-To describe the health and economic consequences of smoking model, a user friendly, web based tool, designed to estimate the health and economic outcomes associated with smoking and the benefits of smoking cessation.
Godfrey, C +4 more
core +2 more sources
D" Reflection Polarities Inform Lowermost Mantle Mineralogy
Geochemistry, Geophysics, Geosystems, 2022 Polarities of seismic reflections at the discontinuity atop the D" region (PdP and SdS) indicate the sign of the velocity contrast across the D" reflector. Recent studies found PdP polarities matching and opposite those of P and PcP.
C. Thomas +2 more
doaj +1 more source
Architecture of ophiolitic mélanges in the Junggar region, NW China
Geosystems and Geoenvironment, 2023 Ophiolitic mélanges, units that contain components of an ophiolite suite, provide crucial information on earth history and orogenic evolution. In this paper, four ophiolitic mélanges are characterized, including the Baijiantan-Yeyagou, Hebukesair ...
Ji'en Zhang +6 more
doaj +1 more source