Results 1 to 10 of about 11,994 (188)

Continental flood basalts drive Phanerozoic extinctions. [PDF]

Proc Natl Acad Sci U S A, 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
Green T, Renne PR, Keller CB.
europepmc   +5 more sources

Continental flood basalts do not drive later Phanerozoic extinctions. [PDF]

Proc Natl Acad Sci U S A, 2023
Henehan MJ, Witts JD.
europepmc   +5 more sources

High water content in primitive continental flood basalts [PDF]

Scientific Reports, 2016
AbstractAs the main constituent of large igneous provinces, the generation of continental flood basalts (CFB) that are characterized by huge eruption volume (>105 km3) within short time span (<1–3 Ma) is in principle caused by an abnormally high temperature, extended decompression, a certain amount of mafic source rocks (e.g., pyroxenite), or an ...
Qun-Ke Xia, Yao Bi, Pei Li, Wei Tian, Xun Wei, Han-Lin Chen   +5 more
openaire   +2 more sources

Plume heads, continental lithosphere, flood basalts and tomography [PDF]

Geological Society, London, Special Publications, 1992
Abstract High-resolution uppermantle tomographic models are interpreted in terms of plate tectonics, hotspots and plume theories. Ridges correlate with very low velocity areas to a depth of 100 km, probably a result of passively induced upwelling and partial melting.
Anderson, Don L., Zhang, Yu-Shen, Tanimoto, Toshiro   +2 more
openaire   +2 more sources

Intrusion Induced Global Warming Preceding Continental Flood Basalt Volcanism [PDF]

, 2021
Abstract Temporal correlations between continental flood basalt eruptions and mass extinctions are well known 1. Massive carbon degassing from volcanism of Large Igneous Provinces can cause catastrophic global climatic and biotic perturbations 1–3.
Xiaochuan Tian, W Buck
openaire   +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, Arya, Bird, Booth, Cattermole, Crisp, Crisp, Davies, Edgett, Edgett, Fink, Glaze, Goncharov, Greeley, Greeley, Greeley, Harmon, Harmon, Hartmann, Hartmann, Hartmann, Hill, Hon, Hooper, Hulme, Jakobsson, Jerram, Keszthelyi, Keszthelyi, Keszthelyi, Keszthelyi, Keszthelyi, Keszthelyi, Kilburn, L. Keszthelyi, Macdonald, Macdougall, Malin, Mangan, Martin, McEwen, McEwen, McEwen, McEwen, Mouginis-Mark, Muhleman, Oskarsson, Peterson, Pieri, Plescia, Reidel, Rowland, Sakimoto, Sakimoto, Scott, Scott, Self, Self, Shaw, Smith, Spence, Steingrímsson, Stephenson, Swanson, T. Thordarson, Theilig, Thorarinsson, Thordarson, Thordarson, Thordarson, Tolan, Wadge, Walker, Ward, Wilson, Wilson, Woods, Zielinski   +77 more
core   +1 more source

Continental flood basalts derived from the hydrous mantle transition zone [PDF]

Nature Communications, 2015
It has previously been postulated that the Earth's hydrous mantle transition zone may play a key role in intraplate magmatism, but no confirmatory evidence has been reported. Here we demonstrate that hydrothermally altered subducted oceanic crust was involved in generating the late Cenozoic Chifeng continental flood basalts of East Asia.
Wang, Xuan-Ce, Wilde, Simon, Li, Q., Yang, Y.   +3 more
openaire   +3 more sources

Emplacement of inflated Pāhoehoe flows in the Naude’s Nek Pass, Lesotho remnant, Karoo continental flood basalt province: use of flow-lobe tumuli in understanding flood basalt emplacement [PDF]

, 2018
Physical volcanological features are presented for a 710-m-thick section, of the Naude’s Nek Pass, within the lower part of the Lesotho remnant of the Karoo Large Igneous Province.
A Saunders, AE Jay, Anne E. Jay, BE Lock, BL Waichel, CP Rajendran, F Goff, F Holzförster, F Jourdan, Frédéric Fluteau, GPL Walker, GPL Walker, GPL Walker, H Hachimi El, H Svensen, HB Mattsson, HC Sheth, JD Greenough, JE Beane, JS Marsh, JSV Zijl van, Julian S. Marsh, K Burke, KA Hon, KB Knight, KG Cox, KG Cox, LG Viereck, M McClintock, M McClintock, M Moulin, M Moulin, ME Hartley, MJ Rossi, MK Reichow, MRG Sayyed, NR Bondre, NR Bondre, P-SS Ross, PB Wignall, PB Wignall, R Ernst, RA Duncan, RA Duraiswami, RA Duraiswami, RA Duraiswami, RA Duraiswami, RMH Smith, S Self, S Self, SE Bryan, SR Passey, SS Deshmukh, SW Anderson, T Thordarson, VE Camp, Vincent Courtillot, W Rogan   +57 more
core   +5 more sources

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., Hooper, P., Kelley, S. P., Reidel, S., Self, S., Widdowson, M.   +5 more
core   +1 more source

Fossil trees, tree moulds and tree casts in the Palaeocene Mull Lava Field, NW Scotland: context, formation and implications for lava emplacement [PDF]

, 2016
Megafossils and macrofossils of terrestrial plants (trees, leaves, fruiting bodies, etc.) are found in sedimentary and pyroclastic units interbedded with lavas in many ancient lava fields worldwide, attesting to subaerial environments of eruption and the
Bell, Brian R., Williamson, Ian T.
core   +1 more source