Search Results - "REGELOUS, M."
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1
Systematic and Temporal Geochemical Changes in the Upper Deccan Lavas: Implications for the Magma Plumbing System of Flood Basalt Provinces
Published in Geochemistry, geophysics, geosystems : G3 (01-02-2023)“…Large Igneous Provinces (LIPs) are unusual volcanic events in which massive amounts of melt (∼106 km3) erupt in relatively short time periods (<106 years)…”
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2
Effects of the Hydrous Domain in the Mantle Wedge on Magma Formation and Mixing at the Northeast Lau Spreading Center, SW Pacific
Published in Geochemistry, geophysics, geosystems : G3 (01-03-2022)“…Abundant volcanic activity occurs in the back‐arc region of the northern Tofua island arc where the Northeast Lau Spreading Center (NELSC) propagates…”
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3
Formation of the Troodos Ophiolite at a triple junction: Evidence from trace elements in volcanic glass
Published in Chemical geology (29-10-2014)“…Fresh volcanic glasses from the extrusive section of the Troodos Ophiolite in Akaki Canyon are tholeiitic and basaltic to dacitic in composition. Compared to…”
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4
Evolution of Magmatism in the New Hebrides Island Arc and in Initial Back‐Arc Rifting, SW Pacific
Published in Geochemistry, geophysics, geosystems : G3 (01-09-2020)“…Abstract We present new geochemical and isotopic data for rock samples from two island arc volcanoes, Erromango and Vulcan Seamount, and from a 500 m thick…”
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5
Geochemistry of Lavas from the Emperor Seamounts, and the Geochemical Evolution of Hawaiian Magmatism from 85 to 42 Ma
Published in Journal of petrology (01-01-2003)“…The Hawaiian–Emperor Seamount Chain (ESC), in the northern Pacific Ocean, was produced during the passage of the Pacific Plate over the Hawaiian hotspot. Major…”
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6
The age of Rubisco: the evolution of oxygenic photosynthesis
Published in Geobiology (01-12-2007)“…ABSTRACT The evolutionary history of oxygenesis is controversial. Form I of ribulose 1,5‐bisphosphate carboxylase/oxygenase (Rubisco) in oxygen‐tolerant…”
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7
Oxygen isotope evidence for the formation of silicic Kermadec island arc and Havre–Lau backarc magmas by fractional crystallisation
Published in Earth and planetary science letters (15-09-2011)“…Silicic magmas in subduction-related settings are believed to form either by extreme crystal fractionation or by partial melting of crustal rocks, particularly…”
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8
Geochemical evolution within the Tonga-Kermadec-Lau arc-back-arc systems: The role of varying mantle wedge composition in space and time
Published in Journal of petrology (01-03-1998)“…New trace element and Sr, Nd, and Pb isotope data for lavas from the active Tonga-Kermadec arc in the southwest Pacific, the volcano of Niua fo'ou in the…”
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9
Trace element transport rates in subduction zones: evidence from Th, Sr and Pb isotope data for Tonga-Kermadec arc lavas
Published in Earth and planetary science letters (01-08-1997)“…Trace element and Th, Sr and Pb isotope data for young lavas from the Tonga-Kermadec arc in the southwest Pacific suggest that geochemical variations in the…”
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10
Effects of variable slab components and tectonics on magma composition in the intra-oceanic Kermadec Arc-Backarc system
Published in Chemical geology (20-01-2023)“…The Kermadec Arc-Backarc system (25–39°S) in the southwest Pacific is an important natural laboratory to examine the controls on arc magma compositions,…”
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11
Lithologic, geomorphic, and climatic controls on sand generation from volcanic rocks in the Sierra Nevada de Santa Marta massif (NE Colombia)
Published in Sedimentary geology (01-03-2022)“…Tectonics, climate, and lithology are the three main factors controlling the generation and transfer of sediments as well as their textural and compositional…”
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12
Variation of melting processes and magma sources of the early Deccan flood basalts, Malwa Plateau, India
Published in Earth and planetary science letters (15-10-2019)“…The Deccan flood basalts cover large parts of India and represent one of the largest volcanic provinces on Earth. We present geochemical and isotopic data on a…”
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13
Manganous water column in the Tethys Ocean during the Permian-Triassic transition
Published in Global and planetary change (01-03-2023)“…Ocean anoxia was one of the key killing mechanisms responsible for the end-Permian mass extinction (∼252 Ma). However, the temporal evolution and the…”
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14
Linking the PETM and North Atlantic volcanism using tellurium in sediments
Published in Palaeogeography, palaeoclimatology, palaeoecology (15-12-2024)“…The Paleocene – Eocene Thermal Maximum (PETM) was a short period (∼170 kyr) of global temperature rise starting at 55.93 Ma, which occurred during the breakup…”
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15
Water mass gradients of the mid-depth Southwest Atlantic during the past 25,000 years
Published in Earth and planetary science letters (01-02-2020)“…•Five new authigenic Nd isotope records from the mid-depth Southwest Atlantic.•The Holocene εNd depth gradient is indicative of the different water masses.•No…”
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16
Magmatic Evolution and Source Variations at the Nifonea Ridge (New Hebrides Island Arc)
Published in Journal of petrology (01-03-2017)Get full text
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17
Confirmation of mass-independent Ni isotopic variability in iron meteorites
Published in Geochimica et cosmochimica acta (15-12-2011)“…We report high-precision analyses of internally-normalised Ni isotope ratios in 12 bulk iron meteorites. Our measurements of 60Ni/ 61Ni, 62Ni/ 61Ni and 64Ni/…”
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18
Cretaceous seawater and hydrothermal fluid compositions recorded in abiogenic carbonates from the Troodos Ophiolite, Cyprus
Published in Chemical geology (05-09-2018)“…We evaluate the potential of ophiolites as archives of paleoseawater and hydrothermal fluid compositions by analysing the chemical and isotopic composition of…”
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19
Variations in the geochemistry of magmatism on the East Pacific Rise at 10°30′N since 800 ka
Published in Earth and planetary science letters (01-04-1999)“…Samples of volcanic rock, collected from the flanks of the East Pacific Rise at 10°30′N, were used to investigate changes in the geochemistry of magmatism at…”
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20
Geochemistry of near-EPR seamounts: importance of source vs. process and the origin of enriched mantle component
Published in Earth and planetary science letters (10-06-2002)“…Niu and Batiza [Earth Planet. Sci. Lett. 148 (1997) 471–483] show that lavas from the seamounts on the flanks of the East Pacific Rise (EPR) between 5° and…”
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