Factors controlling the formation of hydrothermal sulfur deposits in Keçiborlu mine
Journal Title: Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji - Year 2013, Vol 1, Issue 3
Abstract
Replacement-type subsurface sulphur ores of Keçiborlu are situated in fault controlled and metasomatically altered fragmental ophiolite media between alkaline Pliocene volcanics of Isparta and Afyon regions (SW Turkey). Subsurface volcanic sulphur-mineralizing fluids and gases were brought up along the sulphur-hosting oblique slip fault zone into the oxidizing meteoric water-saturated media and the sulphur-ore bodies were developed at more porous, cross-fault locations. Chemically the sulfotaric alteration of the parent rock and sulphur ore formation is characterized by outward volcanic gas and sulphuric acid water leaching and oxidation to sulphur from the crushed porous centers. Consequently, concentric pyritiferous, opaline and argillaceous zones developed adjacent to the sulphur ores. The inner alteration zones progressed and widened toward the outer zones through time and the central sulphur ore developed during a single, continuous phase of mineralisation in the water saturation zone such that the alteration zones do not cross each other.
Authors and Affiliations
Abdullah Mete ÖZGÜNER
Keywords
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