Results 1 to 10 of about 24,713 (223)
Geological Society of America Bulletin, 1914 General Characters of Pillow Structure The structure here called pillow lava has been variously described as cushion-like, sack-like, globular, spheroidal, ovoid, egg-shaped, ellipsoidal, lenticular, and concretionary. Once regarded as rare and peculiar, but now widely known in many countries, it has given rise to a great diversity of opinion among ...
J. V. LEWIS
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Unveiling the Subsurface of Late Amazonian Lava Flows at Echus Chasma, on Mars
Remote Sensing, 2023 The Echus-Kasei region on Mars has been exposed to different episodic volcanic, fluvial, and glacial events in Amazonian time. The goal of the present work is to demonstrate the usefulness of radar instruments to find preserved late Amazonian subsurface ...
Federico Mansilla +3 more
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Phosphate Scavenging During Lava‐Seawater Interaction Offshore of Kīlauea Volcano, Hawaii
Geochemistry, Geophysics, Geosystems, 2021 The 2018, subaerial eruption of Kīlauea volcano, Hawaii, resulted in a 5‐km‐long stretch of coastline that actively drained lava into the ocean. Nutrients were added to the surrounding ocean through the dissolution of basaltic rock and thermal upwelling ...
Rhea K. Foreman +8 more
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Учёные записки Казанского университета: Серия Естественные науки, 2022 Magnetostratigraphy has become increasingly popular among geologists worldwide, as evidenced by recent scientific publications. This article reviews the role and place of magnetostratigraphy in general stratigraphic studies.
A.G. Zubov
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Proceedings, 2022 The Arxan–Chaihe volcanic field (ACVF) is a Pliocene to recent intracontinental monogenetic volcanic field. Within the ACVF, at least 47 vents are preserved in a ~2000 km2 area, forming two major NE-SW trending structural elements. The youngest eruptions
Bo’xin Li, Károly Németh
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Using obsidian in glass art practice
Volcanica, 2022 Glass art practice is indivisible from the material behaviour of glass at a range of working conditions, providing a direct link with the science of glass and melts.
Fabian Ben Wadsworth +16 more
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Remote Sensing, 2022 Mapping of lava flows in unvegetated areas of active volcanoes using optical satellite data is challenging due to spectral similarities of volcanic deposits and the surrounding background.
Moritz Rösch, Simon Plank
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Frontiers in Earth Science, 2020 Large volcanic eruptions are frequently triggered by the intrusion of hot primitive magma into a more evolved magma-chamber or -mush zone. During intrusion into the cooler mush zone, the basaltic magma undergoes crystallization, which in turn can release
Stephan Kolzenburg +5 more
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Volcanic hazards assessment of Oldoinyo Lengai in a data scarcity context (Tanzania)
Territorium: Revista Portuguesa de riscos, prevenção e segurança, 2021 The objective of our study is to establish an assessment of four volcanic hazards in a country threatened by the eruption of the OlDoinyo Lengai volcano. The last major eruption dates back to 2007-2008 but stronger activity in 2019 has revived the memory
Tony Rey +4 more
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Predicting Safe Regions within Lava Flows over Topography [PDF]
, 2022 We present a shallow, isothermal, Newtonian model for the transient interaction of lava flows with topography. Numerical integrations and simple mathematical approximations are deployed to quantify how topography controls lava thicknesses and flow speeds. Considering idealised topographic features, we show that modest depressions thicken and accelerate
arxiv +1 more source