Research and evaluation criteria of hydrothermal oregination of rakhiv gold ore region (Transcarpathia)

Visnyk of the Lviv University. Geology Series Pub Date : 1900-01-01 DOI:10.30970/vgl.35.02

Serhii Tsikon, Uliana Lushchak

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Abstract

Complex of the searching-valuation criterions of the Rakhiv ore region gold mineralization have been elaborated. The main amongst them are mineralogy-genetic, geology-structural, thermobarogeochemical and mineralogy-physical ones. The main favorable criteria for gold are: the spread of productive mineral associations and syngeneic fluid inclusions with them; carbon dioxide-water composition of mineral-forming fluids, inclusions in minerals, the density of which does not exceed 0.5 g/cm3; medium temperature conditions of mineral formation (280–120 °С); distribution and sequence (from {100} + {210} to {210}) of crystallization of combined forms of pyrite, which are characterized by: mainly np- and p-conductivity and numerical vectors (in the coordinate system RV – average), oriented towards higher values hole conductivity; the presence of galena, the value of thermoelectric force which is more than 800 μV/deg. Based on the developed criteria, we offered a number of specific recommendations on the prospects of the studied ore occurrences, Saulyak deposit and Rakhiv gold ore district in general.

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喀尔巴阡河外拉戈夫金矿区热液成矿研究及评价标准

阐述了拉柯夫矿区金矿化找矿评价标准综合体。其中主要有矿物成因型、地质构造型、热压地球化学型和矿物物理型。金矿成矿的主要有利标志是:产矿组合及其同属流体包裹体的分布;矿物形成流体的二氧化碳-水组成，矿物中的包裹体，其密度不超过0.5 g/cm3;矿物形成的中温条件(280 ~ 120°С);黄铁矿组合形态结晶的分布和顺序(从{100}+{210}到{210})，特征为:主要是np-和p-电导率和数值向量(在RV -平均坐标下)，取向于较高的孔洞电导率;方铅矿存在时，热电力值大于±800 μV/℃。在此基础上，对研究找矿点、Saulyak矿床及Rakhiv金矿区的总体远景提出了若干具体建议。

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Visnyk of the Lviv University. Geology Series

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