The genesis of the slab window-related Arzular low-sulfidation epithermal gold mineralization (eastern Pontides, NE Turkey)

被引：17

作者：

Akaryali, Enver ^{[1
]}

Tuysuz, Necati ^{[1
]}

机构：

[1] Gumushane Univ, Dept Geol, TR-29000 Gumushane, Turkey

来源：

GEOSCIENCE FRONTIERS | 2013年 / 4卷 / 04期

关键词：

Epithermal gold; Fluid inclusion; Isotope; Mineralization; Slab window; Tectonics;

D O I：

10.1016/j.gsf.2012.12.002

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Arzular mineralization is one of the best examples of epithermal gold deposits in the eastern Pontides orogenic belt. The mineralization is hosted by the subduction-related basaltic andesites and is mainly controlled by E-W and NE-SW trending fracture zones. The main ore minerals are galena, sphalerite, pyrite, chalcopyrite, tetrahedrite and gold. Homogenization temperatures of fluid inclusions are between 130 and 295 degrees C for quartz and between 90 and 133 degrees C for sphalerite. Sulphur isotope values obtained from pyrite, galena and sphalerite vary between -1.2 parts per thousand and 3 parts per thousand, indicating that sulphur belongs to magmatic origin and was derived from the Lutetian non-adakitic granitic intrusions in the region. Oxygen isotope values are between 15.0 parts per thousand and 16.7 parts per thousand, and hydrogen isotope values are between -87 parts per thousand and -91 parts per thousand. The sulphur isotope thermometer yielded temperatures in the range of 244-291 degrees C for the ore formation. Our results support the hypothesis that the Arzular mineralization is a low-sulfidation epithermal gold deposit associated with non-adakitic subduction-related granitic magmas that were generated by slab window-related processes in a south-dipping subduction zone during the Lutetian. (C) 2013, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. All rights reserved.

引用

页码：409 / 421

页数：13

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