Results 51 to 60 of about 19,207 (163)

Slab Geometry and Upper Mantle Flow Patterns in the Central Mediterranean From 3D Anisotropic P-Wave Tomography. [PDF]

J Geophys Res Solid Earth, 2022
Rappisi F, VanderBeek BP, Faccenda M, Morelli A, Molinari I.   +4 more
europepmc   +1 more source

Seismic Anisotropy in the Java‐Banda and Philippine Subduction Zones and its Implications for the Mantle Flow System Beneath the Sunda Plate

Geochemistry, Geophysics, Geosystems, 2020
The Sunda Plate is a minor tectonic plate bounded by tectonically active convergent boundaries, below which are subducting: the Philippine Sea Plate to the east and the Indo‐Australian Plate to the south and west. It is thus an ideal tectonic setting for
Lingling Wang, Xiaobo He
doaj   +1 more source

Evidence for active upper mantle flow in the Atlantic and Indo-Australian realms since the Upper Jurassic from hiatus maps and spreading rate changes. [PDF]

Proc Math Phys Eng Sci, 2022
Vilacís B, Hayek JN, Stotz IL, Bunge HP, Friedrich AM, Carena S, Clark S.   +6 more
europepmc   +1 more source

Adjoint traveltime tomography unravels a scenario of horizontal mantle flow beneath the North China craton. [PDF]

Sci Rep, 2021
Dong X, Yang D, Niu F, Liu S, Tong P.
europepmc   +1 more source

Flow directions of rivers are set by the mantle

, 2020
Large rivers play crucial roles in determining loci of civilisation, natural resources and biodiversity. The positions of their mouths control nutrient and sediment supply to oceans. The paths that rivers take across the Earth’s surface varies considerably with scale. For example, at large scales big North American rivers (e.g.
Lipp, Alex, Roberts, Gareth
openaire   +3 more sources

A Spectral Directors Method for Modeling the Coupled Evolution of Flow and CPO in Polycrystalline Olivine

Geochemistry, Geophysics, Geosystems
The crystallographic preferred orientation (CPO) of polycrystalline olivine affects both the viscous and seismic anisotropy of Earth's upper mantle with wide geodynamical implications.
Nicholas M. Rathmann, Klaus Mosegaard, Ivanka M. O. Bekkevold, David A. Lilien, David J. Prior   +4 more
doaj   +1 more source

Formation of a Large Cold Groundwater Mantle Helium Anomaly and High Temperature Geothermal Resources in Response to Bimodal Magmatism Near Roosevelt Hot Springs and Utah FORGE, Milford Valley, Southwest Utah

Geochemistry, Geophysics, Geosystems
A large mantle helium anomaly and separate domains of high heat flow are the predominant manifestations of bimodal magmatic activity in the Milford valley.
Stuart F. Simmons, Stefan Kirby
doaj   +1 more source

Resistance to mantle flow inferred from the electromagnetic strike of the Australian upper mantle

Nature, 2001
Seismic anisotropy is thought to result from the strain-induced lattice-preferred orientation of mantle minerals, especially olivine, owing to shear waves propagating faster along the a-axis of olivine crystals than along the other axes. This anisotropy results in birefringence, or 'shear-wave splitting', which has been investigated in numerous studies.
openaire   +4 more sources

Bayesian Modeling of Crustal Azimuthal Anisotropy Supports Partial Crust–Mantle Anisotropic Decoupling in a Continental Back‐Arc, Northeast China

Geophysical Research Letters
How crustal deformation responds to complex mantle flow in continental back‐arc settings remains poorly constrained. Here, we develop a Bayesian working‐likelihood approach to estimate crust‐averaged azimuthal anisotropy from P‐wave receiver functions ...
Chunsen Li, Xiao Xu, Xiaoyu Guo, Xiaofei Tong, Hengcheng Ying, Lingyan Li   +5 more
doaj   +1 more source

Modeling Anisotropic Signature of Slab‐Induced Mantle Plumes From Thermochemical Piles in the Lowermost Mantle

Geophysical Research Letters
Seismic anisotropy, observed in the lowermost mantle near Large Low‐Shear‐Velocity Provinces (LLSVPs), is likely caused by strong deformation from mantle flow interacting with these regions and/or plume formation.
Poulami Roy, Bernhard Steinberger, Manuele Faccenda, Michaël Pons   +3 more
doaj   +1 more source