Results 11 to 20 of about 1,408 (194)
On the origin of recent intraplate volcanism in Australia
Geology, 2014 Many intraplate volcanic provinces do not appear to originate from plate-boundary processes or upwelling mantle plumes. Edge-driven convection (EDC), where a small-scale convective instability (induced by local variations in lithospheric thickness) displaces hot mantle material upward, provides an alternative hypothesis for such volcanism.
Davies, Rhodri, Rawlinson, Nicholas
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Communications Earth & EnvironmentIntraplate volcanism has occurred for the last 35 million years within Northeast Atlantic and Arctic margins, including the western Barents Sea, Svalbard, and northern Greenland. Earlier studies have suggested that some of this volcanism might be sourced
Juan Camilo Meza-Cala +7 more
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Intraplate volcanism originating from upwelling hydrous mantle transition zone [PDF]
Nature, 2020 Most magmatism occurring on Earth is conventionally attributed to passive mantle upwelling at mid-ocean ridges, to slab devolatilization at subduction zones, or to mantle plumes. However, the widespread Cenozoic intraplate volcanism in northeast China1-3 and the young petit-spot volcanoes4-7 offshore of the Japan Trench cannot readily be associated ...
Yang J., Faccenda M.
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Ductile Crustal Flow Facilitates Intraplate Volcanism: Seismic Evidence From Tengchong, China
Geochemistry, Geophysics, GeosystemsThe mechanisms and processes driving intraplate volcanism remain incompletely understood despite significant advances in recent decades. Here, we use high‐resolution multiparameter full‐waveform inversion to image the three‐dimensional seismic structure ...
Xingpeng Dong, Kai Yang
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Latin American Journal of Sedimentology and Basin Analysis, 2021 The Sarmiento Formation (middle Eocene to early Miocene) represents the distal record of the activity of the Andean volcanic arc in central Patagonia, mainly dominated by accumulation and reworking of fine ash in a low-gradient continental setting ...
José Matildo Paredes +5 more
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Communications Earth & EnvironmentSubduction-induced mantle flow has a considerable geodynamic impact on Earth. It can deflect mantle plumes, transport geochemical signatures and produce upwellings that generate atypical intraplate volcanism.
Vincent Strak +2 more
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Geophysical Monograph Series, Page 487-501., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Charles W. Diamond +3 more
wiley +3 more sources
Hydrous Regions of the Mantle Transition Zone Lie Beneath Areas of Continental Intraplate Volcanism [PDF]
Geochemistry, Geophysics, GeosystemsGreat volumes of water are carried downward into the mantle transition zone (MTZ, 410–670 km depth) by subducting slabs. If this water is later drawn upward, the resulting mantle melting may generate continental intraplate volcanism (IPV).
Helene Wang +3 more
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Long‐Distance Asthenospheric Transport of Plume‐Influenced Mantle From Afar to Anatolia
Geochemistry, Geophysics, Geosystems, 2023 The origin of widespread volcanism far from plate boundaries and mantle plumes remains a fundamental unsolved question. An example of this puzzle is the Anatolian region, where abundant intraplate volcanism has occurred since 10 Ma, but a nearby ...
J. Hua +4 more
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The Warnie volcanic province: Jurassic intraplate volcanism in Central Australia [PDF]
Gondwana Research, 2019 Abstract The Cooper and Eromanga Basins of South Australia and Queensland are the largest onshore hydrocarbon producing region in Australia. Igneous rocks have been documented infrequently within end of well reports over the past 34 years, with a late Triassic to Jurassic age determined from well data.
Hardman, Jonathon P.A. +4 more
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