Batı Anadolu' dan örneklerle epitermal kuvars damarlarında görülen dokuların maden aramacılığındaki önemi
Kuvars damarları, altın yataklarının çoğunda ortak özelliktir ve altın cevherleşmelerinin ana depolanma yeridir. Epitermal kuvars damarlarında çok çeşitli makroskobik dokular görülmektedir. Kuvars dokularının türlerine göre damarın, altın cevherleşmesi içerip içermediği belirlenebilmektedir. Bu dokular iki ana grupta toplanmaktadır: 1) açık boşluk dolgularını temsil eden birincil büyüme yapıları; 2) daha sonraki olayları yansıtan binme yapıları. Birincil büyüme yapıları som, tarak ve bantlı olarak sınıflandırılmaktadır. Binme yapıları ise breş ve ornatım dokularıdır. Epitermal damarlarda yaygın olarak görülen adularya ve karbonat gibi kuvars dışındaki mineraller de bu dokusal zonların yorumlanmasında yararlı olmaktadır. Kuvars damarlarında, doku türlerinin ve doku beraberliklerinin dağılımından yola çıkarak bir düşey doku zonlanması modeli oluşturulabilmektedir.
The explorative significance of the textures in epithermal quartz veins by the examples from Western Anatolia
Quartz veins are a common feature in many of the gold deposits and a major host to gold mineralisation. Various macroscopic textures are observed in the epithermal quartz veins. According to the quartz textures within the vein, it can be discriminated whether the vein includes gold mineralisation or not. Two major textural groups are recognised: 1) Primary growth textures representing the open-space fillings; 2) Superimposed textures reflecting the overprinting events. Primary quartz vein textures are classified as buck, comb and banded textures. Superimposed textures are breccia and replacement textures. Minerals other than quartz such as adularia and carbonate minerals common in epithermal veins are useful to the interpretation of textural zones. In quartz veins a vertical textural zoning model can be defined according to the pattern of distribution of textures and assemblages of textures.
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- ISSN: 1016-9164
- Başlangıç: 1947
- Yayıncı: TMMOB Jeoloji Mühendisleri Odası