Results 141 to 150 of about 411 (170)
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Journal of the Geological Society, 2014
Late Cenozoic intraplate volcanism in the Changbai volcanic field straddles the border between China and North Korea, forming basic (alkali basalts and tholeiites) and intermediate–acidic (trachytes and peralkaline rhyolites) volcanic rocks with ages ranging from 19.9 Ma to the present.
Maoliang Zhang +4 more
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Late Cenozoic intraplate volcanism in the Changbai volcanic field straddles the border between China and North Korea, forming basic (alkali basalts and tholeiites) and intermediate–acidic (trachytes and peralkaline rhyolites) volcanic rocks with ages ranging from 19.9 Ma to the present.
Maoliang Zhang +4 more
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Elliptical boundary of an intraplate volcanic field, Auckland, New Zealand
Journal of Volcanology and Geothermal Research, 1997Abstract The outer vents in the Auckland Volcanic Field lie within 19 to 559 m (mean 224.75 m) of a `best-fit' ellipse with a 28.9-km-long major axis trending almost north–south, and a minor axis 16.5 km long. The ellipse has formed the outer boundary of the field since the inception of volcanism 140,000 years ago.
K Bernhard Spörli, Vera R Eastwood
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Petrogenesis and geodynamic control of intraplate Cenozoic volcanism in Italy
Journal of the Virtual Explorer, 2010The Cenozoic evolution of the Mediterranean area has been characterized by various subduction processes and related volcanism (calcalkaline, shoshonitic and ultrapotassic series), in the framework of a general convergence between the African and Eurasian plates and interposed microplates. Intraplate volcanism closely following or accompanying (in space
BECCALUVA, Luigi +4 more
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South Pacific Intraplate Volcanism: Structure, Morphology and Style of Eruption
2004Intraplate volcanic activity in the Pacific (Fig. 5.1) has been observed and/or seismically recorded in the following areas: (1) Samoa Islands with the Rockne Seamount (Johnson 1984); (2) the Society archipelago with the Teahitia Seamount (Cheminee et al. 1989; see Sect. 2.3.5) and seismically active Mehetia Island (Talandier and Okal 1987; see Sect. 2.
N. Binard +3 more
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Magma ascent in active Australian intraplate basaltic volcanic provinces
Australia hosts at least two active continental basaltic volcanic fields with Holocene eruption ages yet very little is understood about magma ascent and mantle to surface ascent pathways and timescales. In this study we use textural and chemical information stored within minerals from two of the youngest volcanic eruptions in northeast and southeast ...Heather Handley +3 more
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Post-Cretaceous intraplate volcanism in the Central Indian Ocean Basin
Marine Geology, 1998Abstract Intraplate volcanism in the Central Indian Ocean Basin (CIOB) has been of much interest, since this tectonically young and structurally complex basin holds signatures of at least one major plate reorganisation at 65±5 Ma; and two major plate boundary structural deformations occurring at 54.5±3 Ma (collision of India with Eurasia) and at 7 Ma
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2019
The physical volcanology of intraplate basaltic submarine and submarine to subaerial volcanic sequences is poorly understood despite most volcanism on Earth being basaltic and occurring within oceans. Direct observation of active intraplate basaltic submarine volcanism is expensive and logistically difficult.
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The physical volcanology of intraplate basaltic submarine and submarine to subaerial volcanic sequences is poorly understood despite most volcanism on Earth being basaltic and occurring within oceans. Direct observation of active intraplate basaltic submarine volcanism is expensive and logistically difficult.
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