Igneous and hydrothermal alteration biotites from the Guzelyayla porphyry copper mineralization area, northeastern Turkey


Yavuz F.

4th Biennial SGA Meeting on Mineral Deposits - Research and Exploration: Where do They Meet, Turku, Finland, 11 - 13 August 1997, pp.691-694 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Turku
  • Country: Finland
  • Page Numbers: pp.691-694

Abstract

The Guzelyayla porphyry copper mineralization area that lies between latitudes 40 degrees and 42 degrees N in northeastern Turkey constitutes the part of Balkans-Caucasus-Iran metallogenic porphyry copper mineralization belt. Mineralization is related to a rock sequence ranging from calc-alkaline volcanic porphyry dacite to granodioritic rocks. Electron microprobe analyses of biotite indicate that igneous and alteration biotite define different composition spectrum. three alteration zones respectively potassic, phyllic and propylitic were developed from inward to outward. Potassic alteration temperatures determined for the Guzelyayla porphyry copper mineralization area lie in the range of 360 degrees to 410 degrees C.