Search Results - "Johan Yans"

Tracing the Eh–pH evolution of Cu–Pb–As–Zn supergene mineralization using detailed petrography in the Cap Garonne mineral deposit (Provence, France) by Poot, Julien, Buelens, Pierre, Dekoninck, Augustin, Rochez, Gaëtan, Yans, Johan

“…The supergene zone of the Cap Garonne mineral deposit (Provence, France) hosts one of the most remarkable mineralogy in the world with no less than 150…”
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Editorial for Special Issue “Supergene Evolution of Polymetallic Deposits, Including Non-Laterite Fe and Mn Ores” by Maria Boni, Johan Yans

“…This Special Issue of Minerals published 3 years after the issues on non-sulphide ore deposits [...]…”
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Multistage genesis of the late Cretaceous manganese karst-hosted Tasdremt deposit (High Atlas, Morocco) by Dekoninck, Augustin, Ruffet, Gilles, Missenard, Yves, Parizot, Oriane, Magoua, Mohamed, Mouttaqi, Abdellah, Rochez, Gaëtan, Yans, Johan

“…The eastern part of the Souss Basin (Morocco) contains several Mn deposits in the Tasdremt district. Three Mn orebodies occur within the Cenomanian-Turonian…”
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Ni-rich mineral nepouite explains the exceptional green color of speleothems by Vlieghe, Martin, Rochez, Gaëtan, Pire-Stevenne, Stéphane, Storme, Jean-Yves, Dekoninck, Augustin, Vanbrabant, Yves, Namur, Olivier, Zhang, Yishen, Van Ham-Meert, Alicia, Donnadieu, Jean-Pierre, Berbigé, Michel, Hasbroucq, Jean-Luc, Yans, Johan

“…Speleothems are secondary mineral structures typically found in karstic caves and usually composed of calcite or aragonite. Despite being naturally white, some…”
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Integrated Paleoenvironmental Reconstruction and Taphonomy of a Unique Upper Cretaceous Vertebrate-Bearing Locality (Velaux, Southeastern France) by Cincotta, Aude, Yans, Johan, Godefroit, Pascal, Garcia, Géraldine, Dejax, Jean, Benammi, Mouloud, Amico, Sauveur, Valentin, Xavier

“…The Velaux-La Bastide Neuve fossil-bearing site (Bouches-du-Rhône, France) has yielded a diverse vertebrate assemblage dominated by dinosaurs, including the…”
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Low-cost northern Tunisian kaolinitic clay-based refractory materials and effect of a rich alumina clay addition by Grine, Oumaima, Moussi, Bechir, Hajjaji, Walid, Pilate, Pascal, Yans, Johan, Jamoussi, Fakher

“…The addition of various quantities of raw materials could be used in order to improve the physical and pyroscopic performances of silica-alumina refractories…”
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Molecular composition and ultrastructure of Jurassic paravian feathers by Lindgren, Johan, Sjövall, Peter, Carney, Ryan M., Cincotta, Aude, Uvdal, Per, Hutcheson, Steven W., Gustafsson, Ola, Lefèvre, Ulysse, Escuillié, François, Heimdal, Jimmy, Engdahl, Anders, Gren, Johan A., Kear, Benjamin P., Wakamatsu, Kazumasa, Yans, Johan, Godefroit, Pascal

“…Feathers are amongst the most complex epidermal structures known and they have a well-documented evolutionary trajectory across non-avian dinosaurs and basal…”
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Post-Paleozoic evolution of the northern Ardenne Massif constrained by apatite fission-track thermochronology and geological data by Barbarand, Jocelyn, Bour, Ivan, Pagel, Maurice, Quesnel, Florence, Delcambre, Bernard, Dupuis, Christian, Yans, Johan

“…The exhumation history of basement areas is poorly constrained because of large gaps in the sedimentary record. Indirect methods including low temperature…”
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Unravelling the Temporal and Chemical Evolution of a Mineralizing Fluid in Karst-Hosted Deposits: A Record from Goethite in the High Atlas Foreland (Morocco) by Michèle Verhaert, Cécile Gautheron, Augustin Dekoninck, Torsten Vennemann, Rosella Pinna-Jamme, Abdellah Mouttaqi, Johan Yans

“…Timing and duration of ore deposit formation are crucial to understanding the mineralization process. To address this, the geochronological (U-Th)/He method,…”
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Characterization of Weathering Processes of the Giant Copper Deposit of Tizert (Igherm Inlier, Anti-Atlas, Morocco) by Julien Poot, Michèle Verhaert, Augustin Dekoninck, Abdellah Oummouch, Abdelaziz El Basbas, Lhou Maacha, Johan Yans

“…The giant Tizert copper deposit is considered as the largest copper resource in the western Anti-Atlas (Morocco). The site is characterized by Cu…”
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First Clarkforkian equivalent Land Mammal Age in the latest Paleocene basal Sparnacian facies of Europe: fauna, flora, paleoenvironment and (bio)stratigraphy by Smith, Thierry, Quesnel, Florence, De Plöeg, Gaël, De Franceschi, Dario, Métais, Grégoire, De Bast, Eric, Solé, Floréal, Folie, Annelise, Boura, Anaïs, Claude, Julien, Dupuis, Christian, Gagnaison, Cyril, Iakovleva, Alina, Martin, Jeremy, Maubert, François, Prieur, Judicaël, Roche, Emile, Storme, Jean-Yves, Thomas, Romain, Tong, Haiyan, Yans, Johan, Buffetaut, Eric

“…The Paleocene-Eocene Thermal Maximum (PETM) is correlated with the first occurrences of earliest modern mammals in the Northern Hemisphere. The latest…”
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Multiple early Eocene carbon isotope excursions associated with environmental changes in the Dieppe-Hampshire Basin (NW Europe) by Garel, Sylvain, Dupuis, Christian, Quesnel, Florence, Jacob, Jérémy, Yans, Johan, Magioncalda, Roberto, Fléhoc, Christine, Schnyder, Johann

“…The early Eocene experienced a series of short-lived global warming events, known as hyperthermals, associated with negative carbon isotope excursions (CIE)…”
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Mineralogy and Genesis of the Polymetallic and Polyphased Low Grade Fe-Mn-Cu Ore of Jbel Rhals Deposit (Eastern High Atlas, Morocco) by Michèle Verhaert, Alain Bernard, Omar Saddiqi, Augustin Dekoninck, Mourad Essalhi, Johan Yans

“…The Jbel Rhals deposit, located in the Oriental High Atlas of Morocco, hosts a polymetallic Fe-Mn-Cu ore. Large metric veins of goethite and pyrolusite cut…”
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Origin of the Moroccan Touissit-Bou Beker and Jbel Bou Dahar Supergene Non-Sulfide Biomineralization and Its Relevance to Microbiological Activity, Late Miocene Uplift and Climate Changes by Mohammed Bouabdellah, Wissale Boukirou, Adriana Potra, Erik Melchiorre, Hassan Bouzahzah, Johan Yans, Khadra Zaid, Mohammed Idbaroud, Julien Poot, Augustin Dekoninck, Gilles Levresse

“…Through integration of Pb-Zn ± Cu non-sulfide mineralogy, texture, and stable isotope (C, O, S) geochemistry, the world-class Touissit- Bou Beker and Jbel Bou…”
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(U-Th)/He Dating of Supergene Iron (Oxyhydr-)Oxides of the Nefza-Sejnane District (Tunisia): New Insights into Mineralization and Mammalian Biostratigraphy by Johan Yans, Michèle Verhaert, Cecile Gautheron, Pierre-Olivier Antoine, Béchir Moussi, Augustin Dekoninck, Sophie Decrée, Hédi-Ridha Chaftar, Nouri Hatira, Christian Dupuis, Rosella Pinna-Jamme, Fakher Jamoussi

“…The mining district of Nefza-Sejnane (Tunisia) encloses numerous ores and raw material deposits, all formed in relation with successive Fe-rich fluids of…”
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Mineralogy, Fluid Inclusion, and C-O-Sr Isotope Geochemistry to Unravel the Evolution of the Magmatic-Hydrothermal System at the Igoudrane Silver-Rich Deposit (Imiter District, Eastern Anti-Atlas, Morocco) by Mamadoudjan Diallo, Mohammed Bouabdellah, Gilles Levresse, Johan Yans, Francesca Castorina, Andreas Klügel, Mohamed Mouhagir, Salim El Mouden, Lhou Maacha

“…The Igoudrane mine with a total production of 700,000 t of ore grading 485 g/t Ag is currently one of the most productive mines in the Imiter district of the…”
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Carbon-isotope analysis of fossil wood and dispersed organic matter from the terrestrial Wealden facies of Hautrage (Mons Basin, Belgium) by Yans, Johan, Gerards, Thomas, Gerrienne, Philippe, Spagna, Paul, Dejax, Jean, Schnyder, Johann, Storme, Jean-Yves, Keppens, Edward

“…Pedogenic nodules, calcitic shells, dispersed organic carbon and bulk rocks affected by low diagenesis are judged to be reliable tools for carbon-isotope…”
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The rise of feathered dinosaurs: Kulindadromeus zabaikalicus , the oldest dinosaur with 'feather-like' structures by Cincotta, Aude, Pestchevitskaya, Ekaterina B, Sinitsa, Sofia M, Markevich, Valentina S, Debaille, Vinciane, Reshetova, Svetlana A, Mashchuk, Irina M, Frolov, Andrei O, Gerdes, Axel, Yans, Johan, Godefroit, Pascal

“…Diverse epidermal appendages including grouped filaments closely resembling primitive feathers in non-avian theropods, are associated with skeletal elements in…”
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The Zemst borehole, first record of the EECO in the North Sea Basin and implications for Belgian Ypresian - Lutetian stratigraphy by Etienne STEURBAUT, Chris KING, Johan MATTHIJS, Corentin NOIRET, Johan YANS, Stefaan VAN SIMAEYS

“…Integration of new data in sedimentology, micropalaeontology and organic carbon isotopeanalysis of upper Ypresian strata in central Belgium (Zemst hole)…”
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Early-Middle Frasnian (early Late Devonian) sedimentology and magnetic susceptibility of the Ardennes area (Belgium): identification of severe and rapid sea-level fluctuations by Da Silva, Anne-Christine, Yans, Johan, Boulvain, Frédéric

“…This paper focuses on the early and middle Frasnian stratigraphic interval from the Ardennes area in Belgium, with a multidisciplinary and high-resolution…”
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