Results 71 to 80 of about 1,513,041 (268)
A seismological study of the mantle beneath Iceland [PDF]
, 2000 Iceland has long been thought to be underlain by a thermal upwelling, or plume, rising from deep within the mantle. This study tests this hypothesis, by a) seeking evidence for a plume in the lower mantle in azimuth anomalies at the NORSAR array and b ...
Pritchard, Matthew James +1 more
core
Compositional trends of Icelandic basalts: Implications for short–length scale lithological heterogeneity in mantle plumes [PDF]
Lithological variations in the mantle source regions under mid-ocean ridges and ocean islands have been proposed to play a key role in controlling melt generation and basalt composition.
Maclennan, John, Shorttle, Oliver
core +1 more source
A talus rock glacier in Nantlle Valley, North Wales
Journal of Quaternary Science, EarlyView.ABSTRACT Landforms comprising mixtures of fine and coarse sediment and deposited during late glacial times are ubiquitous in the British mountains. In many cases, their interpretation has often proved contentious; as a result, the non‐generic term discrete debris accumulations (DDA) has been used to describe them and, over the last 50 years, some have ...
Stephan Harrison, Ed Anderson
wiley +1 more source
On Convection in the Upper Mantle [PDF]
Geophysical Journal of the Royal Astronomical Society, 2010 Summary Present estimates of viscosity and other pertinent parameters make it unlikely that thermal convection exists in the lower mantle. Convection may be considered from the point of view of an instability process for the upper mantle but the probable non-Newtonian nature of viscosity in the upper mantle makes this problem difficult to solve.
openaire +1 more source
Near Surface Geophysics, EarlyView.Abstract The United Kingdom's shallow aquifers offer significant but underdeveloped geothermal energy resource. Seismic methods can help address this by improving the understanding of aquifer heterogeneity and potentially allowing long‐term monitoring of thermal plumes.
Adam D. Booth +10 more
wiley +1 more source
Energy balance of the Earth’s tectonosphere
Геофизический журнал, 2015 Concentration of K, U and Th has been investigated in the rocks of the Earth’s crust and upper mantle of platforms, geosynclines and oceans. The coinsidence has been found between total modern heat emanation in the crust and upper mantle of three types ...
V. Gordienko
doaj +1 more source
The tectonic evolution of mantle rocks from the lizardophiolite complex, South-West England [PDF]
, 1999 In SW England, a highly deformed and metamorphosed assemblage of ultramafic, mafic and granitic rocks is interpreted to represent a fragment of upper mantle and lower oceanic crust: the Lizard Ophiolite Complex.
Cook, Charles Andrew
core
Pediatric Investigation, EarlyView.Bortezomib‐based chemotherapy achieved an 88.9% remission rate in Chinese pediatric patients with relapsed/refractory B‐cell acute lymphoblastic leukemia, enabling 62.5% of responders to bridge to transplantation, while T‐cell acute lymphoblastic leukemia showed no response.
Xingyu Zhao +5 more
wiley +1 more source
steel research international, EarlyView.Rotating‐bending fatigue tests on AISI D2 and AISI A11 quantify how cleanliness, carbide structure, hardness, and fabrication‐induced compressive residual stresses govern long‐life fatigue at NG = 107 cycles. Statistical fracture‐surface analysis and extreme‐value √area statistics link crack‐initiators to LLF strength.
Lennart Mirko Scholl +6 more
wiley +1 more source
Journal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 441-452, March 2025.Three poly(caprolactone) (PCL)‐based additives of differing molecular weights were used as a secondary plasticizer to prevent gas checks in PVC films produced through calendering. Results showed that chemical and physicochemical properties influence the prevention or reduction of gas checks, unlike rheological properties including complex viscosity and
Luis F. Alvarez +4 more
wiley +1 more source