| The enrichment of the lithospheric mantle could be produced by several processes. |
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| It appears that basic magmas across the Gardar Province were derived from a heterogeneous, enriched lithospheric mantle reservoir. |
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| Magmas erupted in continental volcanic arcs typically contain components from many sources in the crust, lithospheric mantle and asthenosphere. |
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| They are interpreted to have been derived from subduction modified lithospheric and asthenospheric mantle sources. |
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| High-heat flow conditions and long thermal lag are best explained by lithospheric breakoff during collision. |
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| Where a lithospheric plate moves over a hot spot, a chain of volcanic islands may be created. |
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| This session will focus on the evolution of magmatic and lithospheric processes during the Proterozoic. |
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| The significance of these other Silurian to early Devonian dates remains uncertain but large-scale lithospheric extension is the most likely cause. |
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| In Iceland the volcanic vents often are long fissures parallel to the rift zone where lithospheric plates are diverging. |
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| Hence, moissanites in kimberlites represent xenocrysts, the kimberlites sampling cold and reduced parts of lithospheric mantle keels. |
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| Where this is the case, the lithospheric plates separate, and the upwelling mantle material forms new ocean floor along the trailing edges. |
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| Most of the 600 or so active volcanoes of the world are located at the margins of the big lithospheric plates which make up the Earth's crust. |
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| This suggests that the peralkaline volcanic magma was derived from a lithospheric mantle source that had not been previously depleted in incompatible elements. |
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| Rate of lithospheric thinning and precise timescale of the eruption of lavas in the British Tertiary Volcanic Province. |
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| Mineral compositions vary as magmas evolve in sub-volcanic, lithospheric magma chambers by assimilation and differentiation. |
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| The spectrum of the ore deposits reflects a range of lithospheric magmatism controlled by the polycyclic geodynamic evolution of an active continental margin. |
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| This layer is inferred to consist of basalt that formed where extrusions of basaltic magma at oceanic ridges have been added to the upper part of lithospheric plates as they spread away from the ridge crests. |
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| Applications of isotope geochemistry, most specifically U-Pb geochronology, to studies of continental lithospheric evolution, with particular emphasis on Archean to Proterozoic processes. |
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| If this hot place at depth remains fixed while the lithospheric plate as a whole moves, hotspots form in succession, as in the archipelago of the Hawaiian islands. |
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| The thermal structure beneath the cratonic regions of the Indian shield indicates varying lithospheric thickness from 65 km in the Singhbhum craton to 48 km in the Archaean Dharwar craton. |
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| Further insights on continental rifting was given by A. Tommasi and A. Vauchez, from the observation and modelling of the mechanical anisotropy of the lithospheric Mantle. |
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| Integrating isotopic studies with geophysical surveys will revolutionize our understanding of the origin, history and spatial extent of the diamond-bearing lithospheric mantle beneath Canada's ancient cratons. |
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| Eroded by the rains, shaken by the oceanic movements and the slip of the plates lithospheric, the absorbed volcanos were used of sat for the madrepores which underline more or less circular contours of them. |
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| The ultimate cause may relate to slab breakoff or more widespread lithospheric delamination. |
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| One of the first pieces of geophysical evidence that was used to support the movement of lithospheric plates came from paleomagnetism. |
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| A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. |
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| In northwest Turkey, the Izmir-Ankara-Erzincan suture and ophiolite zone is considered to be lithospheric remnants of the northern branch of Neotethys. |
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| Metasomatism in oceanic and continental lithospheric mantle. |
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| Lithospheric thinning also allows the asthenosphere to rise closer to the surface, heating the overlying lithosphere by conduction and advection of heat by intrusive dykes. |
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