Results 111 to 120 of about 16,900 (220)
Archaeometry, Volume 68, Issue 1, Page 64-83, February 2026.ABSTRACT This study presents the first comprehensive analysis of the pigments and techniques used by Charles Fairfax Murray (1849–1919), a leading expert in Italian Renaissance attribution, influential art collector and primary copyist for John Ruskin.
Victoria Kemp +3 more
wiley +1 more source
Essence of the Late Mesozoic ore-magmatic systems of Aldan Shield
Литосфера, 2016 The original cause of the Late Mesozoic tectonic-magmatic and mineragenic activation at the Pre-Cambrian Aldan Shield was the existence of the stagnated oceanic slab in the mantle transitional zone.
V. G. Khomich, N. G. Boriskina
doaj +2 more sources
Comparing Geochemical and Geodynamical Models of Plume and Ridge Mantle Source Composition
Geochemistry, Geophysics, GeosystemsWe use a multidisciplinary approach to investigate how the parameter space of mantle convection affects present‐day mantle composition. We compare 22 forward geodynamical mantle circulation model simulations against 24 variants of a geochemical inversion
Paul Béguelin +6 more
doaj +1 more source
A numerical study of forced lithospheric thinning [PDF]
Subsolidus lithospheric thinning by mantle plumes may be involved in the creation of swells, hotspots, and rifts. Among the major questions concerning this process are the timescale on which it occurs and the structure of the plumes.
Anderson, A., Fishbein, E., Schubert, G.
core +1 more source
Subducted Carbon From Mantle Plume in Mid‐Ocean Ridge Basalts
Geophysical Research LettersDeciphering the Earth's deep carbon cycle, from mantle plumes to mid‐ocean ridges, remains incompletely understood. In this study, we analyze the magnesium isotope composition of basalts collected from the South Mid‐Atlantic Ridge (SMAR), which have been
Haitao Zhang +5 more
doaj +1 more source
Venus steep-sided domes: Relationships between geological associations and possible petrogenetic models [PDF]
Venus domes are characterized by steep sides, a circular shape, and a relatively flat summit area. In addition, they are orders of magnitude larger in volume and have a lower height/diameter ratio than terrestrial silicic lava domes.
Head, James W., III, Pavri, B.
core +1 more source
Ultra‐Low Velocity Zone Beneath the Atlantic Near St. Helena
Geochemistry, Geophysics, GeosystemsThere are various hotspots in the Atlantic Ocean, which are underlain by mantle plumes that likely cross the mantle and originate at the core‐mantle boundary. We use teleseismic core‐diffracted shear waves to look for an Ultra‐Low Velocity Zone (ULVZ) at
Sefira Davison +3 more
doaj +1 more source
Dynamics of mantle plumes [PDF]
, 2016 Mantle plumes are a link between different scales in the Earth’s mantle: They are an important part of large-scale mantle convection, transporting material and heat from the core-mantle boundary to the surface, but also affect processes on a smaller scale, such as melt generation and transport and surface magmatism.
openaire
Mantle dynamics and geodesy [PDF]
Both completed work and work that is still in progress are presented. The completed work presented includes: (1) core-mantle boundary topography; (2) absolute value for mantle viscosity; (3) code development; (4) lateral heterogeneity of subduction zone ...
Albee, Arden
core +1 more source