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Oceanic crustal thickness from seismic measurements and rare earth element inversions
Seismic refraction results show that the igneous section of oceanic crust averages 7.1±0.8 km thick away from anomalous regions such as fracture zones and hot-spots, with extremal bounds of 5.0–8.5Expand
Magmatism at rift zones: The generation of volcanic continental margins and flood basalts
When continents rift to form new ocean basins, the rifting is sometimes accompanied by massive igneous activity. We show that the production of magmatically active rifted margins and the effusion ofExpand
Mantle plumes and flood basalts
We discuss the geological, geophysical, and petrological observations that constrain the nature of mantle convection in plumes, and show how theoretical models of mantle plumes have developed overExpand
Structure of the crust and uppermost mantle of Iceland from a combined seismic and gravity study
Abstract We present a map of the depth to the base of the upper crust and the total crustal thickness across Iceland constrained by seismic refraction results, receiver function analysis and gravityExpand
The temperature of the Iceland plume and origin of outward-propagating V-shaped ridges
Abstract Decompression melting of hot mantle rising in the convectively driven core of the Iceland plume generates igneous crust beneath Iceland that is c. 25 km thick. Passive decompression ofExpand
Variation with spreading rate of oceanic crustal thickness and geochemistry
Away from the influence of fracture zones, hotspots and marginal basins, oceanic crust exhibits remarkably uniform crustal thickness, rare earth element concentrations and bulk composition at all butExpand
Rift–plume interaction in the North Atlantic
  • Robert S White
  • Geology, Biology
  • Philosophical Transactions of the Royal Society…
  • 15 February 1997
TLDR
Using gravity, magnetic, bathymetric and seismic refraction data, the mantle plume temperatures and flow patterns beneath the North Atlantic since the time of continental breakup are discussed, and the response of the crustal generation processes to these mantle temperature variations are discussed. Expand
The ocean‐continent boundary off the western continental margin of Iberia: Crustal structure west of Galicia Bank
A seismic refraction transect across the Galicia Bank continental margin shows that the original continental crust thins westward from 17 to 2 km immediately east of a margin-parallel peridotiteExpand
Thin crust beneath ocean drilling program borehole 735B at the Southwest Indian Ridge
Abstract A wide-angle seismic experiment at the Atlantis II Fracture Zone, Southwest Indian Ridge, together with geochemical analyses of dredged basalt glass samples from a site conjugate to OceanExpand
Segmented lateral dyke growth in a rifting event at Bárðarbunga volcanic system, Iceland
TLDR
Lateral dyke growth with segment barrier breaking by pressure build-up in the dyke distal end explains how focused upwelling of magma under central volcanoes is effectively redistributed over long distances to create new upper crust at divergent plate boundaries. Expand
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