Results 91 to 100 of about 771,265 (286)

Global mantle isotopic anomalies linked to supercontinent-superocean evolution for the past 700 million years

Communications Earth & Environment
Earth’s mantle isotopic composition is highly heterogeneous, with enriched and depleted regions1–3 shaped by a complex history of depletion and re-enrichment over 4.5 billion years.
Piero A. B. de Sampaio, Zheng-Xiang Li, Luc S. Doucet   +2 more
doaj   +1 more source

Large-scale adaptive mantle convection simulation [PDF]

A new generation, parallel adaptive-mesh mantle convection code, Rhea, is described and benchmarked. Rhea targets large-scale mantle convection simulations on parallel computers, and thus has been developed with a strong focus on computational efficiency
Wilcox, Lucas C., Gurnis, Michael, Ghattas, Omar, Burstedde, Carsten, Tan, Eh, Alisic, Laura, Stadler, Georg   +6 more
core   +1 more source

Influences of Cleanliness, Carbide Size, Hardness, and Residual Stresses on Long‐Life Fatigue Strength and Crack‐Initiation Mechanisms in Carbide‐Rich Cold‐Work Tool Steels Using Normalized S–N Curves and Database‐Driven Validation of Murakami's √Area Model

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, Frederik Tegeder, Dhirendar Chauhan, Bengt Hallstedt, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +6 more
wiley   +1 more source

How P‐Wave Scattering Throughout the Entire Mantle Mimics the High‐Frequency Pdiff and Its Coda

Geophysical Research Letters
We document the arrival of seismic energy in the core shadow zone up to large distances beyond 150° more than 100 s prior to the core phases. Numerical simulations of the energy transport in an established heterogeneity model show that scattering ...
Tuo Zhang, Christoph Sens‐Schönfelder, Marcelo Bianchi, Klaus Bataille   +3 more
doaj   +1 more source

Nanomedicine applications in lymphoma: Advancing precision diagnostics, targeted therapeutics, and prospective developments

VIEW, EarlyView.
Lymphoma is a group of blood cancers that can appear in lymph nodes, blood, bone marrow, spleen, liver, or the central nervous system, which makes drug delivery and disease monitoring difficult. This review summarizes how nanomedicine technologies may improve targeted treatment and imaging, while carefully separating approved or guideline‐supported ...
Mohd Ahmar Rauf, Yara Mashal, Afeefa Rao, Nasar Ata, Arun K. Iyer, Farhan Shah   +5 more
wiley   +1 more source

Coexistence of calc-alkaline and ultrapotassic alkaline magmas at Mounts Cimini: evidence for transition from the Tuscan to the Roman Magmatic Provinces (central Italy)

Geologica Acta, 2011
The volcanic complex of Mts. Cimini (~0.90-1.30Ma) represents the geographical and chronological transition between the Tuscan Magmatic Province (TMP) and the Roman Magmatic Province (RMP), in central Italy.
M. AULINAS, D. GASPERINI, D. GIMENO TORRENTE, P. MACERA, J.L. FERNÁNDEZ TURIEL, C. CIMARELLI   +5 more
doaj  

Evidences for mantle heterogeneities in the western Mediterranean

, 2017
Goldschmidt 2015, 16.08 - 21.08.2015 , Prague, Czech ...
Melchiorre, Massimiliano, Vergés Masip, Jaume, Fernández Ortiga, Manel, Coltorti, Massimo, Torné, Montserrat, Casciello, Emilio   +5 more
openaire   +2 more sources

A joint geochemical–geophysical record of time-dependent mantle convection south of Iceland [PDF]

, 2014
The North Atlantic V-Shaped Ridges (VSRs) provide a spatially extensive and clear record of unsteady mantle convective circulation over >40 My>40 My.
Jones, S.M.; id_orcid, White, Nicholas J., Murton, Bramley, Maclennan, John, Jones, Steve, Walters, Rachel J., Walters, R.L., White, Nicky, Maclennan, J., Murton, Bramley J., Fitton, J.G., Fitton, J. G., Jones, S.M., Fitton, J. Godfrey, White, N.J., Murton, B.J., Jones, Stephen M.   +16 more
core   +1 more source

Contrasting associations between parental coordination and breeding success in albatrosses across differing environmental contexts

Journal of Animal Ecology, EarlyView.
Our study demonstrates that the benefits of parental coordination in albatrosses are context‐dependent rather than universal. Coordinated parental care enhanced reproductive success in stable environments, but had little effect in variable environments, where individual flexibility may be more valuable.
Natasha Gillies, Richard A. Phillips, Henri Weimerskirch, Jonathan R. Potts, Denis Réale, Alastair J. Wilson, Frédéric Angelier, Christophe Barbraud, Ashley Bennison, Karine Delord, Prescillia Lemesle, Samuel Peroteau, Andrew G. Wood, José C. Xavier, Samantha C. Patrick   +14 more
wiley   +1 more source

Sr-Nd-Pb-Hf isotope results from ODP Leg 187: Evidence for mantle dynamics of the Australian-Antarctic Discordance and origin of the Indian MORB source [PDF]

, 2002
New high precision PIMMS Hf and Pb isotope data for 14–28 Ma basalts recovered during ODP Leg 187 are compared with zero-age dredge samples from the Australian-Antarctic Discordance (AAD).
Barry, Tiffany Louise, Langmuir, C., Christie, D. M., David M. Christie, Barry, T. L., Pearce, J. A., Pamela D. Kempton, Pearce, Julian A., J. Godfrey Fitton, Tiffany L. Barry, Charles Langmuir, Langmuir, Charles, Julian A. Pearce, Kempton, Pamela D., Fitton, J. G., Kempton, P. D., Fitton, J. Godfrey, Christie, David M.   +17 more
core   +1 more source