Results 11 to 20 of about 20,360 (229)
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +19 more sources
Geosystems and Geoenvironment, 2022 To obtain structural information below basalt cover using conventional seismic reflection has always been a challenge due to the high impedance of the basaltic layer. This study enumerates P-wave refraction tomography to image the shallow structure along
Biswajit Mandal +7 more
doaj +1 more source
Continental flood basalts drive Phanerozoic extinctions [PDF]
Proceedings of the National Academy of Sciences, 2022 Refinements of the geological timescale driven by the increasing precision and accuracy of radiometric dating have revealed an apparent correlation between large igneous provinces (LIPs) and intervals of Phanerozoic faunal turnover that has been much discussed at a qualitative level. However, the extent to which such correlations are likely to occur by
Theodore Green +2 more
openaire +3 more sources
Widespread loss of mammalian lineage and dietary diversity in the early Oligocene of Afro-Arabia
Communications Biology, 2021 Using time-scaled phylogenies of several endemic clades of small Afro-Arabian mammals, Dorien de Vries et al. infer a steep drop in species numbers around the Eocene-Oligocene transition.
Dorien de Vries +4 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2020 Continental flood basalts are more prone to compositional modification from passage through thicker and (or) more felsic crust in comparison to their oceanic counterparts.
N. E. Moore +4 more
doaj +1 more source
Geosciences, 2020 Elephanta Island near Mumbai is an important area for understanding the stratigraphic and structural framework of the Deccan flood basalt province in the tectonically disturbed Panvel flexure zone on the western Indian rifted margin.
Vanit Patel +7 more
doaj +1 more source
Terrestrial analogs and thermal models for Martian flood lavas [PDF]
, 2000 The recent flood lavas on Mars appear to have a characteristic “platy-ridged” surface morphology different from that inferred for most terrestrial continental flood basalt flows.
A. S. McEwen +77 more
core +1 more source
New 40Ar/39Ar dating of the Grande Ronde lavas, Columbia River Basalts, USA: Implications for duration of flood basalt eruption episodes [PDF]
, 2010 Grande Ronde Basalt (GRB) lavas represent the most voluminous eruptive pulse of the Columbia River-Snake River-Yellowstone hotspot volcanism. With an estimated eruptive volume of 150,000 km3, GRB lavas form at least 66% of the total volume of the ...
Barry, T. L. +5 more
core +1 more source
Constraining the Magmatic Plumbing System in a Zoned Continental Flood Basalt Province
Geochemistry, Geophysics, Geosystems, 2018 The geographic heterogeneities in lava composition observed in continental flood basalt provinces could provide a probe of material upwelling from the deep mantle and their length scales, but their utility is limited by uncertainties in the locus of ...
Tyrone O. Rooney +6 more
doaj +1 more source
Frontiers in Earth Science, 2019 Flood basalt volcanism involves large volumes of magma emplaced into the crust and surface environment on geologically short timescales. The mechanics of flood basalt emplacement, including dynamics of the crustal magma transport system and the tempo of ...
Leif Karlstrom +2 more
doaj +1 more source