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    Article

    Anthropogenic and natural metal contents of coastal sediments with potential transfer to associated waters: the case of El Melah lagoon near Slimane, Tunisia

    Cu, Zn, Ni, Cr and Co pollution of El Melah lagoon waters near the city of Slimane in northwestern Tunisia was evaluated relative to identified human activity and waste repositories in the neighborhood. These ...

    R. Hadj Amor, N. Clauer, G. Quaranta, R. Boutin, F. Darragi in Environmental Earth Sciences (2014)

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    Article

    The life cycle impact assessment applied to a coastal lagoon: the case of the Slimane lagoon (Tunisia) by the study of seasonal variations of the aquatic eutrophication potential

    The life cycle impact assessment (LCIA) is a standard tool for the study of the environmental impact on a system including all activities in connection with manufacturing a product or detailing a service, from...

    R. Hadj Amor, G. Quaranta, F. Gueddari, D. Million, N. Clauer in Environmental Geology (2008)

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    Chapter and Conference Paper

    Geochemistry, geothermometry, and K-Ar dating of episyenitic rocks associated with the Guarda uraniferous granites, Portugal

    The Guarda granite underwent a continuous hydrothermal alteration process from K/Na-to H-and to Ca-metasomatism. No changes of REEs distribution were observed during late-to post-magmatic processes. Uremobiliz...

    I. Bobos, L. Jaques, F. Noronha, N. Clauer in Mineral Deposit Research: Meeting the Glob… (2005)

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    Article

    Neoproterozoic metamorphism and deformation at the southeastern margin of the East European Craton, Uralides, Russia

    The eastern margin of the East European Craton (EEC) has a long lasting geological record of Precambrian age. Archaean and Proterozoic strata are exposed in the western fold-and-thrust belt of the Uralides and...

    U. A. Glasmacher, W. Bauer, N. Clauer in International Journal of Earth Sciences (2004)

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    Article

    Smectite-to-illite alteration in salt-bearing bentonites (The East Slovak Basin)

    The effect of a saline environment on illitization in volcanoclastic rocks is examined in deep boreholes in the East Slovak Basin. Based on X-ray diffraction analysis, it is concluded that illite-smectite (I–S...

    M. Honty, P. Uhlík, V. Šucha, M. Čaplovičová, J. Franců in Clays and Clay Minerals (2004)

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    Article

    From late Visean to Stephanian: pinpointing a two-stage basinal evolution in the Variscan belt. A case study from the Bosmoreau basin (French Massif Central) and its geodynamic implications

    Post-convergence evolution of the Variscan belt is characterized by the development of intramontane coal-bearing basins containing volcano-sedimentary successions. In the French Massif Central, K––Ar ages on c...

    O. Bruguier, J. F. Becq-Giraudon, N. Clauer in International Journal of Earth Sciences (2003)

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    Article

    Dissolved silica in the Garonne River waters: changes in the weathering dynamics

     The major ion chemistry of the Garonne River is indicative of seasonal variations in the weathering dynamics of the drainage basin. Using the geochemical model MEGA for calculation of the contribution of atmo...

    K. Semhi, P. Amiotte Suchet, N. Clauer, J.-L. Probst in Environmental Geology (2000)

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    Article

    Further evidence for a Jurassic mineralizing event in central Europe: K–Ar dating of hydrothermal alteration and fluid inclusion systematics in wall rocks of the Käfersteige fluorite vein deposit in the northern Black Forest, Germany

    The hydrothermal fluorite vein deposit of `Käfersteige' ranks among the biggest in central Europe. It is located along the suture zone that separates the Moldanubian and Saxothuringian units in the northern B...

    M. Meyer, O. Brockamp, N. Clauer, A. Renk, M. Zuther in Mineralium Deposita (2000)

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    Article

    Petrology, isotope geochemistry and chemical budgets of oceanic gabbros-seawater interactions in the Equatorial Atlantic

     Petrological and chemical variations, as well as oxygen and strontium isotopic data are presented for metagabbros from the Romanche and Vema fracture zones. These rocks were affected by several types and degr...

    EL H. Talbi, J. Honnorez, N. Clauer in Contributions to Mineralogy and Petrology (1999)

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    Article

    K-Ar dating of white micas from the Ventersdorp Contact Reef of the Witwatersrand Basin, South Africa: timing of post-depositional alteration

    White micas from metamorphosed and hydrothermally-altered basaltic lavas, conglomerates, quartzites and shales in and around the Ventersdorp Contact Reef of the Witwatersrand Basin, South Africa, were dated by...

    B. Zhao, N. Clauer, L. J. Robb, H. Zwingmann, T. Toulkeridis in Mineralogy and Petrology (1999)

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    Article

    Quality prediction of hydrocarbon reservoirs based on isotopic and geochemical records

    H. Zwingmann, N. Clauer in Chinese Science Bulletin (1998)

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    Article

    Geological, mineralogical and geochemical characteristics of zeolite deposits associated with borates in the Bigadiç, Emet and Kirka Neogene lacustrine basins, western Turkey

    The Bigadiç, Emet and Kirka lacustrine basins of western Turkey may be considered as Tibet-type graben structures that were developed during the Miocene within the Izmir-Ankara suture zone complex. The volcani...

    M. N. Gündogdu, H. Yalçin, A. Temel, N. Clauer in Mineralium Deposita (1996)

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    Article

    K-Ar dating of episodic Mesozoic fluid migrations along the fault system of Gernsbach between the Moldanubian and Saxothuringian (Northern Black Forest, Germany)

    Along the SW-NE trending fault zone of Gernsbach (northern Black Forest), over a distance of about 45 km between Baden-Baden and Pforzheim, basal series of the sedimentary cover are extensively altered by hydr...

    O. Brockamp, M. Zuther, N. Clauer in Geologische Rundschau (1994)

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    Article

    Reply to the comments on the evolution of illite to muscovite by J.R. Glasmann

    J. C. Hunziker, M. Frey, N. Clauer in Contributions to Mineralogy and Petrology (1987)

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    Article

    The evolution of illite to muscovite: mineralogical and isotopic data from the Glarus Alps, Switzerland

    Thirty-five illite and muscovite concentrates were extracted from Triassic and Permian claystones, shales, slates and phyllites along a cross-section from the diagenetic Alpine foreland (Tabular Jura and boreh...

    J. C. Hunziker, M. Frey, N. Clauer in Contributions to Mineralogy and Petrology (1986)

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    Article

    Nd–Sr isotopic and REE constraints on the genesis of hydrothermal manganese crusts in the Galapagos

    Manganese oxide crusts from the Galapagos spreading centre, interpreted to be of hydrothermal origin, have Nd isotopic compositions and rare-earth element (REE) concentrations that approach seawater values as ...

    N. Clauer, P. Stille, C. Bonnot-Courtois, W. S. Moore in Nature (1984)

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    Chapter and Conference Paper

    The Northern Branch: Depositional Development and Timing of the Structural and Metamorphic Evolution within the Framework of the Damara Orogen

    The depositional history of the northern Damara branch (coastal branch) described on the basis of a cross-section from Kamanjab to Sesfontein and from there to the coast is controlled by the development and fu...

    H. Ahrendt, H.-J. Behr, N. Clauer, J. C. Hunziker, H. Porada in Intracontinental Fold Belts (1983)

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    Chapter and Conference Paper

    Migration of Folding and Metamorphism in the Rheinische Schiefergebirge Deduced from K-Ar and Rb-Sr Age Determinations

    In the very low- to low-grade metamorphic Rhenohercynian Zone of the Variscides a migration of folding has been postulated which was deduced from the shifting of flysch sedimentation.

    H. Ahrendt, N. Clauer, J. C. Hunziker, K. Weber in Intracontinental Fold Belts (1983)

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    Chapter and Conference Paper

    A New Approach to Rb—Sr Dating of Sedimentary Rocks

    The Rb-Sr dating method is a classical isotopic method used successfully for many years to date the intrusion of plutonic rocks, the effusion of volcanic rocks, or the recrystallization of metamorphic rocks. T...

    N. Clauer in Lectures in Isotope Geology (1979)