Results 271 to 280 of about 57,916 (330)
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Changbaishan volcanism in northeast China linked to subduction-induced mantle upwelling
Nature Geoscience, 2014Youcai Tang +2 more
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1977
It is only in volcanic processes that we directly experience magmatism and the fluid emanations of magmas. Consequently, it is of the greatest importance to petrology to extrapolate what we learn from these processes to the fossil products of magmatism in geologic deposits. Yet volcanism differs greatly from plutonism, and its products usually bear the
Robert F. Mueller, Surendra K. Saxena
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It is only in volcanic processes that we directly experience magmatism and the fluid emanations of magmas. Consequently, it is of the greatest importance to petrology to extrapolate what we learn from these processes to the fossil products of magmatism in geologic deposits. Yet volcanism differs greatly from plutonism, and its products usually bear the
Robert F. Mueller, Surendra K. Saxena
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Gondwana Research, 2019
Current understanding of biodiversity changes in the Permian is presented, especially the consensus and disagreement on the tempo, duration, and pattern of end-Guadalupian and end-Permian mass extinctions. The end-Guadalupian mass extinction (EGME; i.e.,
Jun Chen, Yigang Xu
semanticscholar +1 more source
Current understanding of biodiversity changes in the Permian is presented, especially the consensus and disagreement on the tempo, duration, and pattern of end-Guadalupian and end-Permian mass extinctions. The end-Guadalupian mass extinction (EGME; i.e.,
Jun Chen, Yigang Xu
semanticscholar +1 more source
The Aeolian Volcanic District : Volcanism and Magmatism
Acta Vulcanologica : journal of the national volcanic group of Italy, 2006The Aeolian Volcanic District is a geologically complex region characterised by a wide spectrum of volcanism and compositionally variable magmatism younger than 1-1.3 Ma. Submarine and subaerial volcanic activities formed seven large strato-volcanoes, that upraise from ~1500-2000 m b.s.l., and several seamounts.
De Astis G. +2 more
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Volcanic (Volcanic-Plutonic) Belts
1971In recent years, after the works of Ustiev and his co-workers [Ustiev, 1959, 19631, 19632, 1965; Speranskaya, 1961] on the study of the Okhotsk volcanic belt, this type of structure has gained considerable attention. The distinctive character of vulcanism, its superposition on older structural plans and its apparent independence of geosynclines, has ...
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Volcanic Edifices and Volcanic Deposits
2004Young volcanoes contrast with most other mountains by forming lovely cones or impressive edifices sometimes rising high above their surroundings. Even small volcanoes, which almost always occur in groups, greatly enhance the attraction of an otherwise morphologically bland landscape.
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Mantle geochemistry: the message from oceanic volcanism
Nature, 1997A. Hofmann
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