Mining geology and mineralization of İnler Yaylası ( Şebinkarahisar-Giresun ) Pb-Zn- mine
Dereköy (Şebinkarahisar-Giresun) kurşun çinko cevherlerinin maden jeolojisi
- Tez No: 35940
- Danışmanlar: PROF. DR. FARUK ÇALAPKULU
- Tez Türü: Yüksek Lisans
- Konular: Jeoloji Mühendisliği, Geological Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1994
- Dil: İngilizce
- Üniversite: Dokuz Eylül Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Jeoloji Mühendisliği Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 255
Özet
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Özet (Çeviri)
SUMMARY Investigations concerning geological, metallogenic and mineral potential of Pb+Zn veins located in an extended 5 km area at inler Yaylası, Şebinkarahisar (GİRESUN), have been carried out partly in-situ partly at the Geology Engineering Sections of Dokuz Eylül University With these studies it is determined that rock associations of the region are formed by acid alkalic, calc-alkalic volcanism and interbedding of sedimentary units. These rocks have been separated into two groups as Lower Series and Upper Series; and lower Series in which mineralization and hydrothermal alteration occur has been investigated in details. At the investigation area where fracturing tectonism is dominant, it is determined that faults were formed in three periods, and relations of these faults with mineralizations were determined as follows; 1. East- West and North-South directed, partly dike bearing faults that have been formed previous to the mineralization 2. East-West (80°-90°) and Northwest-Southeast (100°-120°) directed ore-bearing faults that have been formed just after the dike settlement 3. East- West (80° -90°), Northwest-Southeast (100° -120°) and North-South directed oreless faults that have been formed during the post mineralization period. Dereköy Mineralizations contain pyrite-blende-galena-less chalcopyrite ore minerals and quartz-barite-carbonate gangue minerals. They also shows low paregenesis and epithermal- mezothermal characteristic. They are seen to be vein groups 2000-2500m in length and a few ten meter in thick. These mineralizations show the same features with the Sisorta Koyulhisar type veins at the East Blacksea Metallogenic Belt. At the surface, mineralization is represented by the barite-bearing silica diffluences independent from the vein direction. Deeper down, the ore-bearing zone gains a more orderly characteristic, but in detail it was located within the fault and fracture zone as lenses. To the deep, mineralization ends as branches, thin-massive veins, small heaps and/or scatterings in the andesitic agglomerates. It has been determined that hydrothermal alteration at the adjacent rocks mostly seen as silicification, carbonatization, chloratization. kaolinization, sericitization. albitization. zeolitization and in some places as propylitization. It has also been determined there is not any zone has taken place at the hydrothermal alteration. IXThe investigation of the research areas reveals that the Maden Tepe, Balkovan Dere, Kuzuluk Mevkii ve Odalar Yaylası mineralizations did not develop any economical potentials. Evaluation of the data obtained, demonstrates that mineralizations of Inler Yaylası contain %7.63 Zn; % 3.15 Pb; % 0.11 Cu; 9.45 ppm Ag within the 2.163.531 ton potential reserve, and 1.348.375 ton mineable reserve containing % 11.53 Zn; % 5.36 Pb; % 0.14 Cu; 9.06 ppm Ag according to the exploiting parameters that have been determined by CINKUR AS. Studies that should be further carried out in order to determine continuity of the veins and to increase mineral potential have been presented for consideration and concerning suasessions have been submitted. xxx
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