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36
İndirme
12
İnceleme alanı Gümüşhane İline bağlı Kılıçören Köyü, Madenin Sırtı mevkiinde yer alır. Çalışma alanında bulunan cevherleşme Erken-Orta Jura yaşlı Şenköy Formasyonu’na ait volkanik kayaçlar içinde gelişmiştir. Volkanik kayaçların Nb/Y ve Zr/TiO2 oranları, kayaçların andezit ve andezit/bazalt türünde olduğunu işaret etmektedir. AFM, SiO2’ye karşı K2O ve Th-Co diyagramlarına göre ise volkanitlerin kalk-alkali karaktere sahip oldukları belirlenmiştir. Cevherleşme Erken-Orta Jura yaşlı Şenköy formasyonuna ait andezitlerde gelişen KB-GD doğrultulu kırık hatlarına damar şeklinde yerleşmiş olarak gözlenmektedir. Arazide gözlenen damarlar birkaç santimetreden bir iki metreye kadar değişen kalınlıklarda ve birkaç metre devam eden uzunlukta gelişmiştir. Alanda K25°B doğrultulu, yaklaşık olarak 5 m kalınlığa ve 50 m uzunluğa sahip silis kafası gözlenmekte olup oluşumu itibariyle epitermal sistemi işaret etmektedir. Sahada silisleşmenin yanı sıra hematitleşme, limonitleşme, kloritleşme ve kükürtleşme gibi alterasyon ürünleri tespit edilmiştir. Cevherleşmenin parajenezi pirit, kalkopirit, galen, sfalerit, fahlerz ve kuvarstan oluşmaktadır. İki farklı evrede gelişen cevherleşmede gözlenen en önemli doku türleri ornatım, ayrılım, kapanım ve kataklastik dokulardır. Özellikle kuvars içeren örneklerde, öz şekilli kuvars kristallerinin yanı sıra boşluk dolgusu ve taraklı yapının gözlenmesi, sahadaki cevherleşmenin epitermal sistemde gelişmiş olabileceğini düşündürmektedir.
The area of review is located in the area of the Silverhane Illine, Kılıçören Village, at the Roof of the Mining. The creation found in the work area developed in the volcanic rockets belonging to the Early-Middle Jura Old Shenköy Formation. The rates of volcanic rockets Nb/Y and Zr/TiO2 indicate that the rockets are in the types of andezite and andezite/bazalt. AFM, according to the K2O and Th-Co diagrams against SiO2, has determined that volcanoes have calc-alcalic character. Ceveralization Early-Middle Jura is observed as placed in the form of veins on the broken lines of KB-GD that develop in the andezites of the old Shenköy formation. The veins observed on the ground developed in thickness variing from a few centimeters to a two meters and in length continuing to a few meters. In the area, a silic head with a thickness of approximately 5 m and a length of 50 m is observed, indicating the epitermal system according to its formation. In addition to silication in the field, alteration products such as hematization, limonization, chlorization and sulfurization have been detected. The parasitic of the caverage consists of piritis, calcopyritis, galen, sfaleritis, fahlerz and quarstan. The most important types of tissue observed in two different stages of development are ornation, separation, closure and cataclastic tissues. Especially in the examples containing quarters, the observation of the inherent shaped quartic crystals as well as the emptiness filling and scratched structure suggests that the scratching in the field may be developed in the epitermal system.
The study area is located in Madenin Sırtı region of Kılıçören village of Gümüşhane. The mineralization found in the study area is developed within andesitic rocks of Early-Mid Jurassic Şenköy Formation. The ratios of Nb/Y and Zr/TiO2 of volcanic rocks in the area indicated these rocks are andesite and andesite/basalt according to the chemical analyzes. It is determined that the volcanics have calc-alkaline character based on the AFM, SiO2 versus K2O and SiO2 versus Th-Co diagram. The mineralization is observed as a vein situated in the NW-SE trending fractures developed in andesites belonging to Early-Middle Jurassic Şenköy Formation. The veins observed in the field have the thicknesses ranging from a few centimeters to several meters and length continues for several meters. The silicified ridge pointing to an epithermal system is about 5 meters in thickness and 50 meters long, having a bearing of N25°W. In the field, besides to silicification, the alteration types such as hematitization, limonitization, chloritization and sulfurization have been identified in the rocks around the mine. The pyrite, chalcopyrite, galena, sphalerite, fahlerz and quartz form the paragenesis of mineralization. In the mineralization, which is developed in two different phases, the replacement, separation, inclusion and cataclastic textures are the most important texture types observed. Especially, the observation of space filling and comb textures in quartz-containing samples, suggests that the mineralization in the field may have developed in the epithermal system.
Alan : Fen Bilimleri ve Matematik; Mimarlık, Planlama ve Tasarım; Mühendislik; Ziraat, Orman ve Su Ürünleri
Dergi Türü : Uluslararası
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