Abstract—

Slepaya Zalezh’, the largest orebody of the Tyrnyauz Mo–W deposit, is considered a first-priority object should mining operations at the deposit be resumed. Molybdoscheelite, scheelite, and molybdenite impregnation in mineable concentrations is genetically related to metasomatites of the productive stage overprinted on skarns, periskarn rocks, hornfelses, and marble. Ore types have been recognized based on the relative amounts of different ore-bearing metasomatite facies and protoliths acting as a diluting mass. Seven ore types have been recognized and mapped in cross section. Types I and II are characterized by predominant (70–90%) aposkarn ores after endo- and exoskarns, accordingly. Type III is characterized by approximately equal proportions of ores after endoskarns and periskarn rocks; type IV differs from type III by a decrease in periskarn rocks replenished by an increase in hornfels. Type V is dominated by ores after exoskarns and, to a lower extent (up to 25%), after marble. Type VI is intermediate between types III and IV. Type VII represents all protoliths in approximately equal proportions. Each type exhibits a stable mineral and chemical composition inherited from the protolith. The ores of each particular type have simple distinguishing features, convenient for logging and mapping, which can be used for manual picking of grab and bulk samples and preliminary ore separation. The ores exhibit narrow ranges of variation in sizes and shapes of ore mineral grains and intergrowths and concentrations of minerals harmful to flotation. The subtle differences in ore mineral concentrations between ore types enable their selective mining and blending. Maps and cross sections contain data on the spatial distribution of the associated components such as garnet and wollastonite in skarns and productive metasomatites, pyroxene–plagioclase periskarn rocks, and hydrothermally altered rocks with Cu, Au, and other mineralization.

中文翻译：

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Tyrnyauz矿床的Slepaya Zalezh'矿体的矿物协会和钼矿类型

摘要-

Tyrnyauz Mo-W矿床最大的矿体Slepaya Zalezh'被认为是恢复该矿床采矿作业的首要对象。可采矿浓度的辉钼矿，白钨矿和辉钼矿的浸渍与矽卡岩，periskarn岩石，角f石和大理石上叠印的生产阶段的变色岩遗传相关。基于不同的含矿变质岩相和原生岩作为稀释物质的相对量，已经认识到矿石类型。现已识别出七种矿石类型，并将其映射到横截面中。相应地，I型和II型的特征是在内endo和外os之后占主导地位的（70-90％）阿波kar岩。III型的特征是，内生矽卡岩和珍珠岩后的矿石比例大致相等。IV型与III型的不同之处在于，角isk的增加补充了Periskarn岩石的减少。在外骨骼之后，V型以矿石为主，在大理石之后，V型以较低的比例（最多25％）为主。VI型介于III型和IV型之间。VII型代表所有原生石的比例大致相等。每种类型都具有从原石继承的稳定的矿物和化学成分。每种特定类型的矿石具有简单的区分特征，便于记录和映射，可用于手动拾取抓斗和散装样品以及初步矿石分离。矿石在矿石矿物晶粒的尺寸和形状以及有害于浮选的矿物的共生和浓度方面表现出狭窄的变化范围。矿石类型之间矿石矿物浓度的细微差别使它们能够进行选择性开采和混合。地图和横截面包含有关矽卡岩中的石榴石和硅灰石和生产性交代岩，辉石-斜长石periskarn岩石以及具有Cu，Au和其他矿化作用的热液蚀变岩石的相关空间分布的数据。