Mantle plume, large igneous provinces and lithospheric evolution
نویسندگان
چکیده
منابع مشابه
Physical volcanology of continental large igneous provinces: update and review
Large igneous provinces (LIPs) form in both oceanic and continental settings by the emplacement and eruption of voluminous magmas ranging from basalt to rhyolite in composition. Continental flood basalt provinces are the best studied LIPs and consist of crustal intrusive systems, extensive flood lavas and ignimbrites, and mafic volcaniclastic deposits in varying proportions. Intrusive rocks are...
متن کاملLarge 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, volcanic passive margins, oceanic plateaus, submarine ridges, seamount groups, and ocean basin flood basalts. Such provinces do not originate at "normal" seafloor spreading centers. We compile all known in situ LIPs younge...
متن کاملImpact induced melting and the development of large igneous provinces
We use hydrodynamic modelling combined with known data on mantle melting behaviour to examine the potential for decompression melting of lithosphere beneath a large terrestrial impact crater. This mechanism may generate sufficient quantity of melt to auto-obliterate the crater. Melting would initiate almost instantaneously, but the effects of such massive mantle melting may trigger long-lived m...
متن کاملThe EDGES of the Mantle
The core-mantle boundary region is often considered to be the source of narrow upwellings which drive or influence plate motions and continental breakup, fuel large igneous provinces and generate volcanic chains. The plume hypothesis has influenced most fields of geochemistry, petrology, geodynamics and mantle evolution. The key axioms underlying the plume paradigm are identified: Axioms are se...
متن کاملPetrological evolution of the European lithospheric mantle: introduction
s of 33rd International Geological Congress, 6–14 August 2008, Oslo. Coltorti, M., Bonadiman, C., O’Reilly, S. Y., Griffin, W. L. & Pearson, N. J. 2010. Buoyant ancient continental mantle embedded in oceanic lithospheric (Sal Island, Cape Verde Archipelago). Lithos, doi: 10.1016/j.lithos.2009.11.005. Davies, G. R., Nixon, P. H., Pearson, D. G. & Obata, M. 1993. Tectonic implications of graphiti...
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ژورنال
عنوان ژورنال: Episodes
سال: 2007
ISSN: 0705-3797,2586-1298
DOI: 10.18814/epiiugs/2007/v30i1/002