Search Results - "Doucet, Luc S."

High water contents in the Siberian cratonic mantle linked to metasomatism: An FTIR study of Udachnaya peridotite xenoliths by Doucet, Luc S., Peslier, Anne H., Ionov, Dmitri A., Brandon, Alan D., Golovin, Alexander V., Goncharov, Aleksey G., Ashchepkov, Igor V.

“…The processes that control water distribution in nominally anhydrous minerals from peridotites are twofold. Melt depletion will remove water while metasomatism…”
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Geochemical evidence for a widespread mantle re-enrichment 3.2 billion years ago: implications for global-scale plate tectonics by Gamal El Dien, Hamed, Doucet, Luc S., Murphy, J. Brendan, Li, Zheng-Xiang

“…Progressive mantle melting during the Earth’s earliest evolution led to the formation of a depleted mantle and a continental crust enriched in highly…”
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Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle by Gamal EL Dien, Hamed, Doucet, Luc S., Li, Zheng-Xiang, Cox, Grant, Mitchell, Ross

“…Plate tectonics and mantle plumes are two of the most fundamental solid-Earth processes that have operated through much of Earth history. For the past 300…”
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Oceanic and super-deep continental diamonds share a transition zone origin and mantle plume transportation by Doucet, Luc S., Li, Zheng-Xiang, Gamal El Dien, Hamed

“…Rare oceanic diamonds are believed to have a mantle transition zone origin like super-deep continental diamonds. However, oceanic diamonds have a homogeneous…”
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The origin of coarse garnet peridotites in cratonic lithosphere: new data on xenoliths from the Udachnaya kimberlite, central Siberia by Doucet, Luc S., Ionov, Dmitri A., Golovin, Alexander V.

“…We report new textural and chemical data for 10 garnet peridotite xenoliths from the Udachnaya kimberlite and examine them together with recent data on another…”
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Emplacement of the Argyle diamond deposit into an ancient rift zone triggered by supercontinent breakup by Olierook, Hugo K. H., Fougerouse, Denis, Doucet, Luc S., Liu, Yebo, Rayner, Murray J., Danišík, Martin, Condon, Daniel J., McInnes, Brent I. A., Jaques, A. Lynton, Evans, Noreen J., McDonald, Bradley J., Li, Zheng-Xiang, Kirkland, Christopher L., Mayers, Celia, Wingate, Michael T. D.

“…Argyle is the world’s largest source of natural diamonds, yet one of only a few economic deposits hosted in a Paleoproterozoic orogen. The geodynamic triggers…”
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Author Correction: Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle by Gamal EL Dien, Hamed, Doucet, Luc S., Li, Zheng-Xiang, Cox, Grant, Mitchell, Ross

“…An amendment to this paper has been published and can be accessed via a link at the top of the paper…”
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Global mantle isotopic anomalies linked to supercontinent-superocean evolution for the past 700 million years by de Sampaio, Piero A. B., Li, Zheng-Xiang, Doucet, Luc S.

“…Earth’s mantle isotopic composition is highly heterogeneous, with enriched and depleted regions1–3 shaped by a complex history of depletion and re-enrichment…”
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Large-scale mantle heterogeneity as a legacy of plate tectonic supercycles by Doucet, Luc S., Li, Zheng-Xiang

“…The Earth’s mantle is divided by the circum-Pacific subduction girdle into the African and Pacific domains, each featuring a large low-shear-wave-velocity…”
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Mantle heterogeneity through Zn systematics in oceanic basalts: Evidence for a deep carbon cycling by Beunon, Hugues, Mattielli, Nadine, Doucet, Luc S., Moine, Bertrand, Debret, Baptiste

“…Subduction at convergent margins introduces a range of sedimentary and crustal materials into the mantle, providing the most dominant form of heterogeneity in…”
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Zn isotopic heterogeneity in the mantle: A melting control? by Doucet, Luc S., Mattielli, Nadine, Ionov, Dmitri A., Debouge, Wendy, Golovin, Alexander V.

“…We present new Zn elemental and isotope data on seventeen fertile and refractory mantle peridotite xenoliths. Eleven fertile peridotites are garnet and spinel…”
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Distinct formation history for deep-mantle domains reflected in geochemical differences by Doucet, Luc S., Li, Zheng-Xiang, Gamal El Dien, Hamed, Pourteau, Amaury, Murphy, J. Brendan, Collins, William J., Mattielli, Nadine, Olierook, Hugo K. H., Spencer, Christopher J., Mitchell, Ross N.

“…The Earth’s mantle is currently divided into the African and Pacific domains, separated by the circum-Pacific subduction girdle, and each domain features a…”
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Precambrian History of the Pacific Mantle Domain: New Constraints from Woodsreef and Port Macquarie Serpentinized Spinel Harzburgites of the New England Orogen, Australia by Doucet, Luc S, Li, Zheng-Xiang, Brennan, Daniel, Offler, Robin, Gamaleldien, Hamed, Ware, Bryant, Tessalina, Svetlana G, Moine, Bertrand N

“…Abstract The present-day mantle is divided into the African and Pacific domains by the circum-Pacific subduction girdle. Very little is known about the mantle…”
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The age and history of the lithospheric mantle of the Siberian craton: Re–Os and PGE study of peridotite xenoliths from the Obnazhennaya kimberlite by Ionov, Dmitri A., Carlson, Richard W., Doucet, Luc S., Golovin, Alexander V., Oleinikov, Oleg B.

“…The formation age of the lithospheric mantle of the Siberian craton (one of the largest on Earth) is not well established; nearly all published whole-rock…”
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Paleoproterozoic formation age for the Siberian cratonic mantle: Hf and Nd isotope data on refractory peridotite xenoliths from the Udachnaya kimberlite by Doucet, Luc S., Ionov, Dmitri A., Golovin, Alexander V.

“…The formation age of the Siberian cratonic mantle is not well established as yet. Re–Os data on various mantle-derived materials have shown that it contains…”
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Global mantle perturbations following the onset of modern plate tectonics by Chen, Qian, Liu, He, Giuliani, Andrea, Doucet, Luc S, Johnson, Tim E, Zhang, Lipeng, Sun, Weidong

“…Plate tectonics drives the compositional diversity of Earth's convecting mantle through subduction of lithosphere. In this context, the role of evolving global…”
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The largest plagiogranite on Earth formed by re-melting of juvenile proto-continental crust by Gamal El Dien, Hamed, Li, Zheng-Xiang, Abu Anbar, Mohamed, Doucet, Luc S., Murphy, J. Brendan, Evans, Noreen. J., Xia, Xiao-Ping, Li, Jiangyu

“…Abstract The growth of continental crust through melt extraction from the mantle is a critical component of the chemical evolution of the Earth and the…”
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Seismic velocities, anisotropy and deformation in Siberian cratonic mantle: EBSD data on xenoliths from the Udachnaya kimberlite by Bascou, Jérôme, Doucet, Luc S., Saumet, Sylvaine, Ionov, Dmitri A., Ashchepkov, Igor V., Golovin, Alexander V.

“…The study presents microstructures and crystallographic preferred orientations (CPO) of minerals obtained by electron back-scattered diffraction (EBSD) in a…”
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Geochemical fingerprinting of continental and oceanic basalts: A machine learning approach by Doucet, Luc S., Tetley, Michael G., Li, Zheng-Xiang, Liu, Yebo, Gamaleldien, Hamed

“…Basalts are ubiquitous, mantle-derived mafic rocks found within all tectonic settings. Studying the chemical composition of basalts has proven to be an…”
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TTG generation by fluid-fluxed crustal melting: Direct evidence from the Proterozoic Georgetown Inlier, NE Australia by Pourteau, Amaury, Doucet, Luc S., Blereau, Eleanore R., Volante, Silvia, Johnson, Tim E., Collins, William J., Li, Zheng-Xiang, Champion, David C.

“…•1560 Ma TTG suite and migmatised mafic source exposed in NE Australia.•‘High-pressure’ TTG generated at a depth of 25–35 km.•Field observations and…”
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