Mantle-flow diversion beneath the Iranian plateau induced by Zagros’ lithospheric keel [PDF]
Scientific Reports, 2021 Previous investigation of seismic anisotropy indicates the presence of a simple mantle flow regime beneath the Turkish-Anatolian Plateau and Arabian Plate.
Ayoub Kaviani +8 more
doaj +2 more sources
Mantle flow distribution beneath the California margin. [PDF]
Nat Commun, 2020 AbstractAlthough the surface deformation of tectonic plate boundaries is well determined by geological and geodetic measurements, the pattern of flow below the lithosphere remains poorly constrained. We use the crustal velocity field of the Plate Boundary Observatory to illuminate the distribution of horizontal flow beneath the California margin.
Barbot S.
europepmc +5 more sources
Earth and Planetary Science Letters, 1977 A map of the heat flux out of the earth's mantle has been prepared by subtracting the heat flow arising in the earth's crust from the surface heat flow. In continental areas the crustal contribution of the enriched zone is determined from the parameters of the linear heat flow-heat production relationship q o = q* + bA 0 in areas where such data exist.
Pollack, Henry N., Chapman, David S.
openaire +3 more sources
Horizontal mantle flow controls subduction dynamics. [PDF]
Sci Rep, 2017 AbstractIt is generally accepted that subduction is driven by downgoing-plate negative buoyancy. Yet plate age –the main control on buoyancy– exhibits little correlation with most of the present-day subduction velocities and slab dips. “West”-directed subduction zones are on average steeper (~65°) than “East”-directed (~27°).
Ficini E +3 more
europepmc +9 more sources
Mantle flow in subduction systems: The mantle wedge flow field and implications for wedge processes [PDF]
Journal of Geophysical Research: Solid Earth, 2013 The mantle wedge above subducting slabs is associated with many important processes, including the transport of melt and volatiles. Our understanding of mantle wedge dynamics is incomplete, as the mantle flow field above subducting slabs remains poorly understood.
Maureen D Long, Erin A Wirth
exaly +2 more sources
Geochemistry, Geophysics, Geosystems, 2008 Three‐dimensional fluid dynamic laboratory simulations are presented that investigate the subduction process in two mantle models, an upper mantle model and a deep mantle model, and for various subducting plate/mantle viscosity ratios (ηSP/ηM = 59–1375). The models investigate the mantle flow field, geometrical evolution of the slab, sinking kinematics,
W P Schellart
exaly +3 more sources
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +15 more sources
Upper-plate Shortening and Mountain-building in the Context of Mantle-driven Oceanic Subduction
Tektonika, 2023 The mechanisms controlling mountain building at subduction zones remain debated. In particular the interaction between mantle flow and subduction has been poorly addressed while fundamental in controlling plate displacement and deformation.
Tania Habel +5 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2021 The region around the Celebes Sea, SE Asia, is evolving within a convergent tectonic environment involving the Pacific plate to the east and the Indian‐Australian plate to the south.
Lingmin Cao +6 more
doaj +1 more source
Coupled Evolution of Plate Tectonics and Basal Mantle Structure
Geochemistry, Geophysics, Geosystems, 2021 The relationships between plate motions and basal mantle structure remain poorly understood, with some models implying that the basal mantle structure has remained stable over time, while others suggest that it could be shaped by the aggregation and ...
Xianzhi Cao +2 more
doaj +1 more source