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Large igneous provinces: crustal structure, dimensions, and external consequences
Large igneous provinces (LIPs) are a continuum of voluminous iron and magnesium rich
rock emplacements which include continental flood basalts and associated intrusive rocks …
rock emplacements which include continental flood basalts and associated intrusive rocks …
Dynamic processes controlling evolution of rifted basins
The extension of the lithosphere, controlling the development of rifted basins, is driven by a
combination of plate-boundary forces, frictional forces exerted on the base of the lithosphere …
combination of plate-boundary forces, frictional forces exerted on the base of the lithosphere …
Geochemical fingerprinting of oceanic basalts with applications to ophiolite classification and the search for Archean oceanic crust
Two geochemical proxies are particularly important for the identification and classification of
oceanic basalts: the Th–Nb proxy for crustal input and hence for demonstrating an oceanic …
oceanic basalts: the Th–Nb proxy for crustal input and hence for demonstrating an oceanic …
Mantle plumes and entrainment: isotopic evidence
Many oceanic island basalts show sublinear subparallel arrays in Sr-Nd-Pb isotopic space.
The depleted upper mantle is rarely a mixing end-member of these arrays, as would be …
The depleted upper mantle is rarely a mixing end-member of these arrays, as would be …
Heterogeneous mantle domains: signatures, genesis and mixing chronologies
A Srsingle bondNdsingle bondPb isotope data base is available now which includes over
300 samples from some 43 oceanic islands or island groups. This data base supports the …
300 samples from some 43 oceanic islands or island groups. This data base supports the …
The source regions of ocean island basalts
The geochemical modelling of many small-volume continental magmas shows that their
source regions must have been depleted by basalt formation, and later enriched by the …
source regions must have been depleted by basalt formation, and later enriched by the …
Cratons, mobile belts, alkaline rocks and continental lithospheric mantle: the Pan-African testimony
Several late-collision and intraplate features are not entirely integrated in the classical plate
tectonic model. The Pan-African orogeny (730–550 Ma) in Saharan Africa provides some …
tectonic model. The Pan-African orogeny (730–550 Ma) in Saharan Africa provides some …
Hotspot volcanism close to a passive continental margin: the Canary Islands
The Canarian Archipelago is a group of volcanic islands on a slow-moving oceanic plate,
close to a continental margin. The origins of the archipelago are controversial: a hotspot or …
close to a continental margin. The origins of the archipelago are controversial: a hotspot or …
Regionally distinctive sources of depleted MORB: Evidence from trace elements and H2O
The sources of depleted mid-ocean ridge basalts (N-MORB) worldwide are regionally
distinctive in that they share incompatible element ratios with spatially associated, enriched …
distinctive in that they share incompatible element ratios with spatially associated, enriched …
Incompatible trace elements in OIB and MORB and source enrichment in the sub-oceanic mantle
The concentrations of incompatible trace elements in ocean island basalts (OIB) from the
central Atlantic extend to relatively enriched and fractionated compositions in regions of …
central Atlantic extend to relatively enriched and fractionated compositions in regions of …