Browsing Makale Koleksiyonu by Author "Ucurum, A"
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Geochemical characteristics of Yamadagi volcanics in central east Anatolia: an example from collision-zone volcanism
Yalcin, H; Gundogdu, MN; Gourgaud, A; Vidal, P; Ucurum, A (ELSEVIER SCIENCE BV, 1998)Neogene Yamadagi volcanic rocks consist of basaltic trachyandesite, trachyandesite, andesite, and dacite. The major- and trace-element chemistry indicates that the lavas are dominantly calc-alkaline and mildly alkaline in ... -
Geology, base-precious metal concentration and genesis of the silica-carbonate alteration (listwaenites) from late Cretaceous ophiolitic melanges at central east Turkey
Ucurum, A; Larson, LT (GUSTAV FISCHER VERLAG, 1999)The late Cretaceous (pre Maastrichtian) alteration of serpentinite bodies in the Divrigi and Kuluncak ophiolitic melanges has formed two distinct types of listwaenite. The earliest is silica-carbonate listwaenite (type I), ... -
Geology, geochemistry, and evolution of the Divrigi and Kuluncak ophiolitic melanges, with reference to serpentinites in east-central Turkey
Ucurum, A (TAYLOR & FRANCIS INC, 2000)The Divrigi and Kuluncak ophiolitic melanges are located in central Anatolia in the Tauride ophiolite belt. The stratigraphic sequence in the Divrigi ophiolitic melange includes, from bottom to top, the Upper Jurassic-Lower ... -
Main-component geochemistry and platinum-group-element potential of Turkish chromite deposits, with emphasis on the Mugla area
Ucurum, A; Koptagel, O; Lechler, PJ (TAYLOR & FRANCIS INC, 2006)Chromite deposits in Turkey are situated in six different major areas, as are reninants of the Neo-Tethyan oceanic crust. Sizes of the mineralization vary from tens of tons to a few thousand tons. Alpine-type structures ... -
Platinum-group element distribution in chromite ores from ophiolite complexes, western Turkey
Ucurum, A; Lechler, PJ; Larson, LT (MANEY PUBLISHING, 2000)Selected chromite mines in western Turkey (Fig. 1) were the focus for a study of platinum-group element (PGE) and Au concentrations in chromite ores and host rocks. Forty-six underground chromite mines were sampled in ten ...