Results 21 to 30 of about 51,586 (326)
On impact and volcanism across the Cretaceous-Paleogene boundary
Science, 2020 An impact with a dash of volcanism Around the time of the end-Cretaceous mass extinction that wiped out dinosaurs, there was both a bolide impact and a large amount of volcanism. Hull et al. ran several temperature simulations based on different volcanic
P. Hull +35 more
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Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance We present a quantitative test of end-Cretaceous extinction scenarios and how these would have affected dinosaur habitats. Combining climate and ecological modeling tools, we demonstrate a substantial detrimental effect on dinosaur habitats ...
Alfio Alessandro Chiarenza +6 more
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Geology, 2020 The Ordovician saw major diversification in marine life abruptly terminated by the Late Ordovician mass extinction (LOME). Around 85% of species were eliminated in two pulses 1 m.y. apart.
D. Bond, S. Grasby
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Traces of explosive volcanic eruptions in the Upper Ordovician of the Siberian Platform [PDF]
Estonian Journal of Earth Sciences, 2014 Ordovician K-bentonite beds have a long history of investigation all around the world. They have been reported from Gondwana, the Argentine Precordillera, the Yangtze Platform, Laurentia, Baltica, and numerous terrains between Gondwana and Baltica, which
Warren D. Huff +4 more
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Upper cretaceous magmatic suites of the Timok magmatic complex [PDF]
Geološki Anali Balkanskoga Poluostrva, 2010 The Upper Cretaceous Timok Magmatic Complex (TMC) developed on a continental crust composed of different types of Proterozoic to Lower Cretaceous rocks. The TMC consists of the magmatic suites: Timok andesite (AT) - Turonian-Santonian, Metovnica
Banješević Miodrag
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Dizhi lixue xuebao, 2021 Based on a regional geological survey at a scale of 1:50000, it reveals that the volcanic rocks from the Baiyin'gaolao Formation of Gaoyaowula in Inner Mongolia could be divided into three lithologic segments by the triple mapping method of "volcanic ...
DONG Peipei +5 more
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The copper deposits of Bor, eastern Serbia: Geology and origin of the deposits [PDF]
Geološki Anali Balkanskoga Poluostrva, 2014 The copper deposits of Bor, volcanic activities in the area and relationship of minerals through time are presented by formations within the Cenomanian-Turonian range.
Antonijević Ivan, Mijatović Predrag
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Deep Learning Investigation of Mercury’s Explosive Volcanism
Remote Sensing, 2023 The remnants of explosive volcanism on Mercury have been observed in the form of vents and pyroclastic deposits, termed faculae, using data from the Mercury Atmospheric and Surface Composition Spectrometer (MASCS) onboard the Mercury surface, space ...
Mireia Leon-Dasi +2 more
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Observing eruptions of gas-rich compressible magmas from space
Nature Communications, 2016 Satellite observations are an important tool in volcano monitoring, but observations such as ground deformation and gas emissions are treated independently. Here, the authors present a model coupling them through their link to magma volatile contents and
Brendan McCormick Kilbride +2 more
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The eruptive tempo of Deccan volcanism in relation to the Cretaceous-Paleogene boundary
Science, 2019 Two timelines for extinction The Cretaceous-Paleogene extinction that wiped out the nonavian dinosaurs 66 million years ago was correlated with two extreme events: The Chicxulub impact occurred at roughly the same time that massive amounts of lava were ...
C. Sprain +5 more
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