The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 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.
Alexander J. Dickson +2 more
wiley +9 more sources
Chamber-by-Chamber Measurements of Planktonic Foraminiferal Mg, Sr, and Na to Ca Ratios With Femtosecond LA-ICP-MS. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale Distribution patterns of foraminifera are controlled by environmental parameters such as temperature, salinity, and nutrient concentrations in each water mass. Since trace elements to Ca ratios of marine microfossil calcite test of foraminifera record environmental and ecological habitat information, we used femtosecond (fs) LA‐ICP ...
Yoshimura T +7 more
europepmc +2 more sources
Environmental consequences of Ontong Java Plateau and Kerguelen Plateau volcanism [PDF]
, 2015 The mid-Cretaceous was marked by emplacement of large igneous provinces (LIPs) that formed gigantic oceanic plateaus, affecting ecosystems on a global scale, with biota forced to face excess CO 2 resulting in climate and ocean perturbations. Volcanic phases of the Ontong Java Plateau (OJP) and the southern Kerguelen Plateau (SKP) are radiometrically ...
E. Erba +6 more
openaire +1 more source
Origin and evolution of magmas on the Ontong Java Plateau [PDF]
Geological Society, London, Special Publications, 2004 Abstract The Early Cretaceous Ontong Java Plateau (OJP) represents by far the largest igneous event on Earth in the last 200 Ma and yet, despite its size, the OJP’s basaltic crust appears to be remarkably homogeneous in composition.
J. Godfrey Fitton, Marguerite Godard
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Louisville Seamount Chain: Petrogenetic processes and geochemical evolution of the mantle source
Geochemistry, Geophysics, Geosystems, 2014 The Louisville Seamount Chain is a ∼4300 km long chain of submarine volcanoes in the southwestern Pacific that spans an age range comparable to that of the Hawaiian‐Emperor chain and is commonly thought to represent a hot spot track.
Loÿc Vanderkluysen +6 more
doaj +1 more source
Organic Matter Preservation and Incipient Mineralization of Microtubules in 120 Ma Basaltic Glass
Frontiers in Earth Science, 2019 Hollow tubular structures in subaqueously-emplaced basaltic glass may represent trace fossils caused by microbially-mediated glass dissolution. Mineralized structures of similar morphology and spatial distribution in ancient, metamorphosed basaltic rocks
Matthew R. M. Izawa +8 more
doaj +1 more source
Deep Seismic Investigation of the Ontong Java Plateau [PDF]
Eos, Transactions American Geophysical Union, 2011 The Ontong Java Plateau (OJP; see Figure 1a), in the western equatorial Pacific Ocean, is one of the largest oceanic plateaus on Earth, covering 1.86 million square kilometers—equivalent to roughly one third of the contiguous United States [Coffin and Eldholm, 1994].
Seiichi Miura +6 more
openaire +1 more source
Plume tectonics – myth or reality?
Записки Горного института, 2017 The paper is dedicated to the role of mantle plumes in the formation of large igneous provinces. From different regions of the world facts are mentioned that contradict key points of plume tectonics.
Yu. I. Daragan-Sushchov
doaj +1 more source
No 182W excess in the Ontong Java Plateau source
Chemical Geology, 2018 Abstract Small-scale W isotope variations in ancient and modern terrestrial rocks provide insights into Earth's accretion and early differentiation history as well as the long-term evolution of the Earth's mantle. Tungsten isotope studies on such rocks have exploited advances in mass spectrometry, both NTIMS and MC-ICPMS, which now permit the ...
Thomas S. Kruijer, Thorsten Kleine
openaire +3 more sources
Geothermobarometry of basaltic glasses from the Tamu Massif, Shatsky Rise oceanic plateau
Geochemistry, Geophysics, Geosystems, 2013 We present the results of a petrological study of core samples from Tamu Massif (Site U1347), recovered during the Shatsky Rise Integrated Ocean Drilling Program (IODP) Expedition 324.
Anika Husen +5 more
doaj +1 more source