Results 41 to 50 of about 57,916 (330)
Evolution of the volcanic mechanism in the central part of the Urumieh-Dokhtar magmatic arc
Journal of Economic Geology, 2021 Introduction Cenozoic volcanic activities in the Urumieh-Dokhtar Magmatic Arc (UDMA) have occurred in three main pulses of Eocene, upper Oligocene-Pliocene, and Pio-Quaternary (Dilek et al., 2010, Sayari, 2015).
Mohammad Sayari , Mortaza Sharifi
doaj +1 more source
Proceedings of the National Academy of Sciences of the United States of America, 2018 Significance Declining oxygen contents in today’s oceans highlight the need to better understand ancient, natural marine deoxygenation and associated extinctions.
T. Them +9 more
semanticscholar +1 more source
Earth and Space Science, 2023 Wavelength‐dependent mid‐infrared (400–1,800 cm−1; 5.56–25 μm) optical constants (real and imaginary indices of refraction; n and k) are determined using reflectance spectra at a spectral sampling of 4 cm−1 for several silicate glasses of varying SiO2 wt%
I. Varatharajan +3 more
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Frontiers in Earth Science, 2021 Palaeo-wildfire, which had an important impact on the end Permian terrestrial ecosystems, became more intense in the latest Permian globally, evidenced by extensive occurrence of fossil charcoals.
Yao-feng Cai +4 more
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Chapter 1.4 Antarctic volcanism: active volcanism overview
Geological Society, London, Memoirs, 2021 Abstract In the last two centuries, demographic expansion and extensive urbanization of volcanic areas have increased the exposure of our society to volcanic hazards. Antarctica is no exception. During the last decades, the permanent settlement and seasonal presence of scientists, technicians, tourists and logistical personnel close to active
openaire +2 more sources
American Journal of Science, 2018 Mercury (Hg) is increasingly being used as a sedimentary tracer of Large Igneous Province (LIP) volcanism, and supports hypotheses of a coincidence between the formation of several LIPs and episodes of mass extinction and major environmental perturbation.
L. Percival +10 more
semanticscholar +1 more source
Komatiitic explosive volcanism and its tectonic setting in Finland, the Fennoscandian (Baltic) Shield [PDF]
Bulletin of the Geological Society of Finland, 1990 The variously explosive komatiitic volcanism in Finland was virtually confined to the Archaean continental segment, where it occurred in the Lapland and Kuhmo‒ Suomussalmi greenstone belts between 3.0 Ga and 2.5 Ga, in the continental borderland at 1.97 ...
M. Saverikko
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An Effusive Lunar Dome Near Fracastorius Crater: Spectral and Morphometric Properties
Remote Sensing, 2022 We examine a dome within the boundary between Fracastorius crater and Mare Nectaris. The dome has a noticeable vent structure and appears to be perpendicular to wrinkle ridges in the southern Mare Nectaris basin.
Caitlin Ahrens, Raffaello Lena
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Source to surface model of monogenetic volcanism: a critical review
Special Publications, 2017 Small-scale volcanic systems are the most widespread type of volcanism on Earth and occur in all of the main tectonic settings. Most commonly, these systems erupt basaltic magmas within a wide compositional range from strongly silica undersaturated to ...
I. Smith, K. Németh
semanticscholar +1 more source
Advanced Materials, EarlyView.2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil +14 more
wiley +1 more source