Results 21 to 30 of about 411 (170)
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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Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020 Isotope-geochemical material for Pliocene-Quaternary volcanoes of the Kamchatka region is generalized on a cartographic basis. The Sr-isotope anomalies of moderate and elevated radiogenicity, geochemically confirmed, are spatially conjugated.
Колосков А.В.
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Cenozoic Uplift and Volcanism of Hangai Dome, Central Mongolia Triggered by Lower Mantle Upwellings
Geophysical Research Letters, 2023 The mechanisms of surface uplift of Hangai Dome (>2 km) and formation of Cenozoic intraplate volcanism in central Mongolia remain vigorously debated.
Yingkai Wu, Xuewei Bao
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Frontiers in Earth Science, 2018 The interaction between magmatic and tectonic processes in ocean intraplate volcanism yields insights into the ascent and transport of magmas. Many oceanic intraplate studies lack a temporal component and do not consider changes in tectonic regime and/or
René H. W. Romer +3 more
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A subduction and mantle plume origin for Samoan volcanism
Scientific Reports, 2018 The origin of Samoan volcanism in the southwest Pacific remains enigmatic. Whether mantle melting is solely caused by a mantle plume is questionable because some volcanism, here referred to as non-hotspot volcanism, defies the plume model and its linear ...
Vincent Strak, Wouter P. Schellart
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Frontiers in Earth Science, 2022 The occurrence of mantle-derived peridotite xenoliths in phonolitic melts is a rare phenomenon, and is commonly ascribed to a mantle origin of the phonolite.
Andreas Klügel +2 more
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Geochemistry, Geophysics, Geosystems, 2021 Although previous findings support an origin of the Shatsky Rise igneous plateau (Northwest Pacific) through interaction of a mantle plume with a mid‐ocean ridge triple junction, the evidence for the involvement of a mantle plume is equivocal.
Antje Dürkefälden +7 more
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A 3D geological model of El Hierro volcanic island reflecting intraplate volcanism cycles
Groundwater for Sustainable Development, 2023 [EN] Fully 3D and multidimensional geological models are key for energy, mining and water resources assessment and management, which has a great economic impact. 3D geological models provide critical information regarding geometric properties of the geological bodies of interest, such as ore deposits or reservoirs, allowing inference of volumes and ...
García-Gil, Alejandro +6 more
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Intraplate and petit-spot volcanism originating from hydrous mantle transition zone [PDF]
Goldschmidt Abstracts, 2020 <p>Most magmatism occurring on Earth is conventionally attributed to passive mantle upwelling at mid-ocean ridges, slab devolatilization at subduction zones, and mantle plumes. However, the widespread Cenozoic intraplate volcanism in northeast China and the peculiar petit-spot volcanoes offshore the Japan trench cannot be readily
Jianfeng Yang, Manuele Faccenda
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Geochemistry, Geophysics, Geosystems, 2020 What drives the formation of basaltic melts beneath intraplate volcanoes not associated with extensive thermal anomalies or lithospheric extension? Detailed constraints on the melting conditions and source region are imperative to resolve this question ...
Antoine J. J. Bracco Gartner +1 more
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