Delineation of the porphyry-skarn mineralized zones (NW Turkey) using concentration–volume fractal model

Muhittin Karaman, Mustafa Kumral, Demet Kiran Yildirim, Zeynep Doner, Peyman Afzal, Amr Abdelnasser*

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8 Atıf (Scopus)

Özet

This study is carried out for delineation of the Tepeoba porphyry-skarn Cu-Mo ± Au mineralized zones at the Biga peninsula (NW Turkey) using the concentration–volume (C–V) fractal model. The power-law C–V relationships of Cu, Mo, and Au reveal five mineralized zones of Cu, three zones of Mo, and five zones for gold in the Tepeoba deposit. The main phase of the mineralization has average ore grades of 0.257% Cu, 0.357% Mo and 5.3083 ppm Au. Cu–Mo sulfide-rich hypogene ore zone overlain by mineralized oxidation zone are encompassed by three main alteration types, which are represented by biotite ± muscovite-K-feldspar, actinolite-albite and outer chlorite-epidote-calcite mineral associations occurring within the porphyritic microgranite and hornfels in the mine area. The delineated mineralization trend, based on the C–V fractal model, suggested that Cu and Mo enrichment zones were controlled by the same geochemical processes in the deposit due to their similar trends with the C–V log-log plot. Cu and Mo occurred mainly within the breccia zones along with stockwork veining at the contact between the hornfels and the biotite (±muscovite)-K-feldspar-altered Eybek microgranite. The main mineralization zone of Au developed in the oxidation zone due to of supergene enrichment processes.

Orijinal dilİngilizce
Makale numarası125802
DergiGeochemistry
Hacim81
Basın numarası4
DOI'lar
Yayın durumuYayınlandı - Kas 2021

Bibliyografik not

Publisher Copyright:
© 2021 Elsevier GmbH

Finansman

The authors are grateful to General Directorate of Mineral Research and Exploration of Turkey (MTA) as well as to Özdoğu Ltd. Co. for supplying the drill hole data. Also, great thanks go to Prof. Huseyin Yilmaz (Dokuz Eylul University, Turkey) for critical reading, providing language help, and improving an earlier version of this manuscript. Prof. Dr. Astrid Holzheid (Editor-in-Chief) and Prof. Dr. Behnam Sadeghi (Associate Editor) as well as anonymous reviewer are thanked for carefully reading our manuscript and for their constructive comments.

FinansörlerFinansör numarası
General Directorate of Mineral Research and Exploration of Turkey
Mount Allison University
Dokuz Eylül Üniversitesi

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