Start | View Uploaded Presentations | Author Index | Meeting Information

GSA Annual Meeting in Seattle, Washington, USA - 2017

Paper No. 65-10
Presentation Time: 9:00 AM-5:30 PM

PRELIMINARY FINDINGS ON FORMATION OF THE GÖKÇEDOGAN REGION CU-ZN METAL MINERALIZATION, KARGI-ÇORUM, TURKEY


YALCIN, Cihan1, HANILCI, Nurullah1, KUMRAL, Mustafa2, TANC, Beril3 and KAYA, Mustafa2, (1)Geological Engineering Department, Istanbul University, Istanbul University /, Istanbul, 34320, Turkey, (2)Geological Engineering Department, Istanbul Technical University, Buyukdere St., Istanbul, 34469, Turkey, (3)Chemistry Department, Faculty of Arts and Sciences, İstanbul, 34469, Turkey, kumral@itu.edu.tr

Kargi (Corum) area is located in the eastern part of Pontide (N Turkey). The evolution of the Paleo-Tethys and Neo-Tethys Oceans outlined the tectonostratigraphy of this area as well as was responsible for its mineralization. Relatively autochthonous rocks that are considered to be basement rocks were overlain by allochthonous formations in the study area. The autochthonous sequence is represented by Bekirli metamorphic rocks while the allochthonous sequences are represented by Kargi ophiolitic melange. Mineralizations (e.g. Cu-Zn) are observed in both stratigraphic sequences (Bekirli metamorphics and Kargi ophiolites).

The Göçükdibi and Kömürlükdere Cu-Zn mineralization that was formed as the parallel to the schistosity planes in quartz-chlorite schist’s as well as disseminated in the wall rock in the autochthonous Bekirli metamorphic rocks. The ore paragenesis includes chalcopyrite, sphalerite, and pyrite with minor amounts of galena as primary sulphides, and azurite and malachite minerals that developed as secondary minerals into fractures and faults cut the Göçükdibi mineralization. The initial data stated that this mineralization that was compatible with the schistosity is considered to be syngenetic. Also, they stated the presence of the clastic facies. These data are similar to the volcanogenic massive sulfide (VMS) mineralization developed in clastics dominated geological environments.

The Cu±Zn mineralizations in allochthonous sequences are represented by Dedeninyurdu, Yergen, and Ahmetaganinyeri mineralizations. These mineralizations occurred in meta-alkaline rocks of Upper Cretaceous Kargi ophiolitic mélange as vein-type within NE-SW trending fracture lines. The vein-type mineralization includes pyrite, chalcopyrite, sphalerite, pyrrhotite, and goethite minerals in the paragenesis. Pyritization, silicification, sericitization and carbonatization alteration types developed around this vein-type Cu-Pb±Zn mineralization in the melange.

Supported by TUBITAK project no: 113Y536

Session No. 65--Booth# 51

D30. Investigations in Economic Geology (Posters)
Sunday, 22 October 2017: 9:00 AM-5:30 PM
Halls 4EF (Washington State Convention Center)
Geological Society of America Abstracts with Programs. Vol. 49, No. 6
doi: 10.1130/abs/2017AM-301166
© Copyright 2017 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.
Back to: D30. Investigations in Economic Geology (Posters)
<< Previous Abstract | Next Abstract >>