Search Results - "Macouin, M."

Fossil black smoker yields oxygen isotopic composition of Neoproterozoic seawater by Hodel, F., Macouin, M., Trindade, R. I. F., Triantafyllou, A., Ganne, J., Chavagnac, V., Berger, J., Rospabé, M., Destrigneville, C., Carlut, J., Ennih, N., Agrinier, P.

“…The evolution of the seawater oxygen isotopic composition (δ 18 O) through geological time remains controversial. Yet, the past δ 18 O seawater is key to…”
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Unusual massive magnetite veins and highly altered Cr-spinels as relics of a Cl-rich acidic hydrothermal event in Neoproterozoic serpentinites (Bou Azzer ophiolite, Anti-Atlas, Morocco) by Hodel, F., Macouin, M., Triantafyllou, A., Carlut, J., Berger, J., Rousse, S., Ennih, N., Trindade, R.I.F.

“…[Display omitted] •Bou Azzer ophiolite was studied using rock magnetism, petrography and geochemistry.•Unique massive magnetite veins result from iron leaching…”
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Magnetic Properties of Ferritchromite and Cr‐Magnetite and Monitoring of Cr‐Spinels Alteration in Ultramafic and Mafic Rocks by F. Hodel, M. Macouin, R. I. F. Trindade, J. F. D. F. Araujo, M. Respaud, J. F. Meunier, L. Cassayre, S. Rousse, L. Drigo, J. Schorne‐Pinto

“…Abstract Spinel is a ubiquitous mineral in mafic/ultramafic rocks. Spinel cores chemistry is extensively used as a petrogenetic proxy while their alteration…”
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Barking up the Right Tree: Using Tree Bark to Track Airborne Particles in School Environment and Link Science to Society by Leite, A. d. S., Rousse, S., Léon, J.‐F., Trindade, R. I. F., Haoues‐Jouve, S., Carvallo, C., Dias‐Alves, M., Proietti, A., Nardin, E., Macouin, M.

“…Children's exposure to air pollution affects both their health and learning skills. Fine and ultrafine particulate matter (PM2.5, PM1), notably issued from…”
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Chemostratigraphy of the Neoproterozoic Mirassol d'Oeste cap dolostones (Mato Grosso, Brazil): An alternative model for Marinoan cap dolostone formation by Font, E., Nédélec, A., Trindade, R.I.F., Macouin, M., Charrière, A.

“…We have conducted a detailed study of the Neoproterozoic Mirassol d'Oeste cap dolostones that overlay the glacial diamictites of the Puga Formation (∼ 635 Ma,…”
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Combined paleomagnetic and isotopic data from the Doushantuo carbonates, South China: implications for the “snowball Earth” hypothesis by Macouin, M., Besse, J., Ader, M., Gilder, S., Yang, Z., Sun, Z., Agrinier, P.

“…We investigated the paleomagnetism and stable isotopic signatures of the Late Neoproterozoic Nantuo tillite and overlying Doushantuo carbonates (Hunan…”
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Low paleointensities recorded in 1 to 2.4 Ga Proterozoic dykes, Superior Province, Canada by Macouin, M., Valet, J.P., Besse, J., Buchan, K., Ernst, R., LeGoff, M., Scharer, U.

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A multilayered water column in the Ediacaran Yangtze platform? Insights from carbonate and organic matter paired δ13C by Ader, M., Macouin, M., Trindade, R.I.F., Hadrien, M-H., Yang, Z., Sun, Z., Besse, J.

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The Moroccan Anti-Atlas ophiolites: Timing and melting processes in an intra-oceanic arc-back-arc environment by Hodel, F., Triantafyllou, A., Berger, J., Macouin, M., Baele, J.-M., Mattielli, N., Monnier, C., Trindade, R.I.F., Ducea, M.N., Chatir, A., Ennih, N., Langlade, J., Poujol, M.

“…The Moroccan Anti-Atlas orogenic belt encloses several Precambrian inliers comprising two major Neoproterozoic ophiolitic complexes: the Sirwa and Bou Azzer…”
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A Neoproterozoic hyper-extended margin associated with Rodinia's demise and Gondwana's build-up: The Araguaia Belt, central Brazil by Hodel, F., Trindade, R.I.F., Macouin, M., Meira, V.T., Dantas, E.L., Paixão, M.A.P., Rospabé, M., Castro, M.P., Queiroga, G.N., Alkmim, A.R., Lana, C.C.

“…The Araguaia Belt encloses a poorly constrained Pan-African (Brasiliano Cycle) continental suture marked by a series of (~750 Ma) ophiolitic units which, when…”
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The snowball Earth aftermath: Exploring the limits of continental weathering processes by Le Hir, Guillaume, Donnadieu, Yannick, Goddéris, Yves, Pierrehumbert, Raymond T., Halverson, Galen P., Macouin, Mélina, Nédélec, Anne, Ramstein, Gilles

“…Carbonates capping Neoproterozoic glacial deposits contain peculiar sedimentological features and geochemical anomalies ascribed to extraordinary environmental…”
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A multilayered water column in the Ediacaran Yangtze platform? Insights from carbonate and organic matter paired δ 13C by Ader, M., Macouin, M., Trindade, R.I.F., Hadrien, M-H., Yang, Z., Sun, Z., Besse, J.

“…Large carbon isotope fluctuations have been systematically reported for Ediacaran carbonate rocks, the meaning of which remains controversial. In order to…”
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Long-term evolution of the geomagnetic dipole moment by Macouin, Mélina, Valet, Jean-Pierre, Besse, Jean

“…The geomagnetic field intensity measured at the surface of the planet is a potential indicator of the dynamo activity in the conducting liquid core of the…”
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The Neoproterozoic carbon isotope excursions of the Doushantuo formation (South China) viewed from organic carbon isotope systematics by Ader, M., Macouin, M., Hadrien, M.H., Yang, Z., Zhimming, S., Besse, J.

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