Results 141 to 150 of about 96,005 (268)
Andean Tectonics and Mantle Dynamics as a Pervasive Influence on Amazonian Ecosystem. [PDF]
Bicudo TC +4 more
europepmc +1 more source
After describing all the contradictions associated with the current Plate Tectonics theory, this paper proposes a model where a single cause can explain all geophysical and geological phenomena.
Rousseau, André
core +1 more source
Cloistered justice: The opposing trends of barricade and respective secrecy
Abstract Two recent reports illustrate contrasting trends in open justice exceptions conceptualised as respective and barricade secrecy. Respective secrecy protects the parties involved and their constitutive social ties and, as evaluation report into the Family Court Transparency Pilot indicates, has been shrinking.
LYDIA MORGAN
wiley +1 more source
Crustal evolution and mantle dynamics through Earth history. [PDF]
Korenaga J.
europepmc +1 more source
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis +5 more
wiley +1 more source
The spatiotemporal interaction of large‐ and regional‐scale upper mantle forces can prevail in collisional settings. To better understand the role of these forces on post‐subduction tectonics, we focus on mantle dynamics in the East Anatolian Plateau, a ...
Ebru Şengül Uluocak +4 more
doaj +1 more source
Noble gases and nitrogen in material from asteroid Bennu
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
Grain boundary diffusion cannot explain the W isotope heterogeneities of the deep mantle
The low 182W/184W and high 3He/4He in some ocean island basalts compared to the bulk mantle values may derive from the Earth’s core through long-term core-mantle interactions. It has been proposed that the grain boundary diffusion of siderophile elements
Yihang Peng, Takashi Yoshino, Jie Deng
doaj +1 more source
Effects of iron on the lattice thermal conductivity of Earth's deep mantle and implications for mantle dynamics. [PDF]
Hsieh WP, Deschamps F, Okuchi T, Lin JF.
europepmc +1 more source
Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush
Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj +2 more
wiley +1 more source

