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  1. No Access

    Article

    Palaeoproterozoic A-type felsic magmatism in the Khetri Copper Belt, Rajasthan, northwestern India: petrologic and tectonic implications

    A number of small Palaeoproterozoic granitoid plutons were emplaced in the Khetri Copper Belt, which is an important Proterozoic metallogenic terrane in the northeastern part of Aravalli mountain range. Contig...

    P. Kaur, N. Chaudhri, M. Okrusch, J. Koepke in Mineralogy and Petrology (2006)

  2. No Access

    Article

    Contact metamorphism and metasomatism at a dolerite-limestone contact in the Gebel Yelleq area, Northern Sinai, Egypt

    At the northeastern flank of Gebel Yelleq, northern Sinai, pure limestones of Upper Cretaceous age were subjected to a thermal overprint, caused by a c. 80 m thick Tertiary olivine dolerite sill. Metasomatic supp...

    M. M. Abu El-Enen, M. Okrusch, T. M. Will in Mineralogy and Petrology (2004)

  3. No Access

    Article

    Phase relations of calc-silicate assemblagesin the Auerbach marble, OdenwaldCrystalline Complex, Germany

    In the Odenwald Crystalline Complex, calc-silicate rocks are concentrated at the margins of the marble layer of Auerbach. They were presumably formed by metasomatic exchange between the calcite marble and the...

    E. Schmädicke, M. Okrusch, W. Schubert, B. Elwart, U. Görke in Mineralogy and Petrology (2001)

  4. No Access

    Article

    Simultaneous horst-basin formation and magmatism during Late Variscan transtension: evidence from 40Ar/39Ar and 207Pb/206Pb geochronology in the Ruhla Crystalline Complex

    Ar/39Ar–mica and 207Pb/206Pb–zircon dates are presented and combined with existing P–T data and the sedimentary record. These data indicate that the RCC was faulted into three segments which underwent different e...

    A. Zeh, M. A. Cosca, H. Brätz, M. Okrusch… in International Journal of Earth Sciences (2000)

  5. No Access

    Article

    Phase relations of calcic amphibole–orthoamphibole–chlorite- talc assemblages, with applications to ultramafic rocks from the KTB pilot hole, Bavaria

     Lenses of ultramafic rocks intercalated within a metagabbro–amphibolite sequence were encountered in the KTB pilot hole. A pervasive metamorphic overprint formed the dominating assemblage calcic amphibole–ort...

    E. Schmädicke, M. Okrusch in Geologische Rundschau (1997)

  6. No Access

    Article

    Post-peak re-equilibration in a mafic gneiss from the KTB main hole: implications for the metamorphic evolution

     Detailed microprobe investigations were carried out on mineral phases of a mafic garnet–biotite–hornblende and garnet–biotite gneiss from the KTB main hole. The results indicate that the complex zonation patt...

    A. Zeh, M. Okrusch, H. Brätz in Geologische Rundschau (1997)

  7. No Access

    Article

    Orthogneisses in the Spessart Crystalline Complex, north-west Bavaria: Silurian granitoid magmatism at an active continental margin

    The Spessart Crystalline Complex, north-west Bavaria contains two orthogneiss units of granitic to granodioritic composition, known as the Rotgneiss and Haibach gneiss, respectively, which are structurally con...

    A. Dombrowski, M. Okrusch, P. Richter, F. Henjes-Kunst… in Geologische Rundschau (1995)

  8. No Access

    Article

    Talc-chlorite-amphibole felses of the KTB pilot hole, Oberpfalz, Bavaria: Protolith characteristics and phase relationships

    The metagabbro-amphibolite sequences in the KTB pilot hole contain intercalations of talc-chlorite-amphibole felses (or “hosbachites”), which show transitional contacts to the adjacent metagabbros. The hosbach...

    S. Matthes, M. Okrusch, U. Schüssler, P. Richter, K. von Gehlen… in Mineralogy and Petrology (1995)

  9. No Access

    Article

    Phase relationships and fluid inclusions characteristics of the metamorphosed, stratiform sulfide deposit Matchless, Namibia

    Silikatparagenesen im Nebengestein der metamorphen, schichtgebundenen Kupferlagerstätte Matchless, Damara-Orogen, Namibia, ergeben Temperaturen zwischen 550 und 625 °C und Drucke von 6–8 kbar beim Höhepunkt de...

    R. Klemd, M. Okrusch in Geologische Rundschau (1990)