Kestanelik epithermal gold deposit is situated in the Biga Peninsula, which hosts numerous metallic deposits belonging to the Tethyan Metallogenic Belt. In the Biga peninsula the Tethyan Metallogenic Belt is represented by a Neo-Tethyan suture zone. Discovered deposits along the belt are commonly associated with Cenozoic magmatism ranging between 52 and 18 Ma in age, formed due syn- to post-collisional tectonics. In this study, we focus on the deposit-scale geological and mineralization characteristics of Kestanelik in order to determine the formation and evolution of the deposit within the tectono-magmatic history of the Biga Peninsula. We (1) mapped the geology of the deposit area (2) conducted paleostress analyses, (3) observed and examined the macroscopic and petrographical textural, mineralogical and alteration characteristics of the mineralization and (4) interpreted geophysical resistivity survey and geochemical assay data. The stratigraphic age of the Kestanelik deposit, bracketed by cross cutting relations and supported by the geophysical data, is middle Lutetian-early Priabonian which also implies that the deposit has a genetic link with the Cenozoic post-collisional calc-alkaline magmatism. A NE-SW oriented compressional regime determined from the paleostress analyses is consistent with the kinematics of the vein system and is attributed to the collision and further convergence after the closure of the northern branch of the Neo-Tethys Ocean. The fracture system provided structural pathways for the transport of the hydrothermal fluids. The common presence of pseudo-bladed quartz and hydrothermal breccias, and the low total sulphide and base metal contents in the mineralized veins indicate that the Kestanelik is a low sulphidation epithermal-type gold deposit. Boiling, mixing (hypogene oxidation) and supergene enrichment are the likely gold deposition and enrichment processes respectively.

中文翻译：

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土耳其西北特提斯成矿带的Kestanelik超热金银矿床的地质和矿化特征

Kestanelik地热金矿床位于Biga半岛，那里有众多属于Tethyan成矿带的金属矿床。在比加半岛，特提斯成矿带以新特提斯缝合带为代表。沿该带发现的沉积物通常与新生代岩浆活动有关，年龄在52至18 Ma之间，是由于碰撞后构造的共同作用而形成的。在这项研究中，我们专注于Kestanelik矿床规模的地质和矿化特征，以便确定Biga半岛构造岩浆史内该矿床的形成和演化。我们（1）绘制了沉积区的地质图（2）进行了古应力分析，（3）观察并检查了宏观和岩石构造，矿化的矿物学和蚀变特征；（4）解释了地球物理电阻率调查和地球化学测定数据。Kestanelik矿床的地层时代是横切关系，并由地球物理数据支持，是中卢特斯时代-早Priabonian时代，这也意味着该矿床与新生代碰撞后的钙碱性岩浆作用有遗传联系。由古应力分析确定的面向NE-SW的压缩状态与静脉系统的运动学相一致，并归因于新特提斯洋北部分支关闭后的碰撞和进一步收敛。裂缝系统为热液的输送提供了结构途径。伪叶片石英和热液角砾岩普遍存在，矿化脉中的总硫化物和贱金属含量低，表明Kestanelik是低硫化超热型金矿床。沸腾，混合（低基因氧化）和超基因富集分别可能是金的沉积和富集过程。