Results 191 to 200 of about 19,495 (236)

Combustion and Pyrolysis EA-IRMS Techniques to Determine the δ²H of Diamonds. [PDF]

Rapid Commun Mass Spectrom
Fourel F, Lécuyer C, Thomassot E, Deloule E, Ojeimi C.   +4 more
europepmc   +1 more source

Reply to Comment by John J.G. Reijmer, Arnoud Slootman & Max de Kruijf on Baas, J.H., Hewitt, W., Lokier, S. and Hendry, J. (2025) Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs? The Depositional Record, 11, 583–598. DOI: 10.1002/dep2.319

The Depositional Record, Volume 12, Issue 4, September 2026.
Jaco H. Baas, Stephen Lokier, James Hendry   +2 more
wiley   +1 more source

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Mantle flow in subduction systems: The subslab flow field and implications for mantle dynamics

Journal of Geophysical Research, 2009
The character of the mantle flow field in subduction zones remains poorly understood, despite its importance for our understanding of subduction dynamics. In particular, little attention has been paid to mantle flow beneath subducting slabs. In order to identify processes that make first‐order contributions to the global pattern of subslab mantle flow,
Maureen Long
exaly   +2 more sources

Mantle flow models with core‐mantle boundary constraints and chemical heterogeneities in the lowermost mantle

Journal of Geophysical Research, 2008
Decorrelation between s‐wave and bulk sound velocities in the lowermost mantle and explicit density models based on seismic tomography give evidence for non‐thermal lateral density variations in the lowermost mantle. Here we implement such variations in a numerical model of mantle flow driven by density anomalies which are derived from seismic ...
Bernhard Steinberger
exaly   +4 more sources

Novel Mantle flow retrodictions reveal preferential material flow in the sublithospheric European mantle

2021
The Cenozoic tectonic evolution of Northern Europe involves a number of events that are difficult to reconcile with an intra-plate setting, including magmatic events and topographic changes that are located far from plate boundaries. It is entirely plausible to relate these events to sublithospheric processes in a vigorously convecting mantle. However,
Bunge, Hans-Peter , Ghelichkhan , Siavash , Oeser , Jens   +2 more
openaire   +1 more source

Sublithospheric flows in the mantle

Geotectonics, 2017
The estimated rates of upper mantle sublithospheric flows in the Hawaii–Emperor Range and Ethiopia–Arabia–Caucasus systems are reported. In the Hawaii–Emperor Range system, calculation is based on motion of the asthenospheric flow and the plate moved by it over the branch of the Central Pacific plume.
V. G. Trifonov, S. Yu. Sokolov
openaire   +1 more source

Structure of melt flow channels in the mantle

Geotectonics, 2008
Structural events during the formation of the mantle peridotite section in the Voikar-Syn’ya massif of the Polar Urals are considered. The structural units of the mantle section were formed during several deformation stages. Dunite bodies in restitic peridotites were formed in the course of deformation that completed the formation of large-scale folds ...
Savelieva, G., Sobolev, A., Batanova, V., Suslov, P., Brügmann, G.   +4 more
openaire   +2 more sources

Mantle flow, melting, and dehydration of the Iceland mantle plume

Earth and Planetary Science Letters, 1999
Abstract Recent studies have shown that the extraction of water from the mantle due to partial melting beneath mid-ocean ridges may increase the viscosity of the residuum by 2–3 orders of magnitude. We examine this rheological effect on mantle flow and melting of a ridge-centered mantle plume using three-dimensional numerical models. Results indicate
Ito, Garrett, Shen, Yang, Hirth, Greg, Wolfe, Cecily J.   +3 more
openaire   +2 more sources

Mantle Flow Revisited

Science, 2003
Seismic data from Earth's mantle have been interpreted in terms of high-strain deformation and recrystallization of mantle minerals, allowing conclusions about mantle flow to be drawn. In his Perspective, [Bystricky][1] argues that new data reported by [ Holtzman et al ][2].
openaire   +1 more source

Mantle flow and the evolution of the lithosphere

Physics of the Earth and Planetary Interiors, 1993
Abstract The evolution of the lithosphere is mainly controlled by time-dependent forces due to (1) plate tectonic processes and (2) sublithospheric mantle flow. Plate tectonic processes like continental collision may provide strong thermal disturbances and, after completion, may trigger secondary convection beneath the lithosphere.
H. Schmeling, Gabriele Marquart
openaire   +1 more source