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首页> 外文期刊>Russian Geology and Geophysics >Mineralogical and Geochemical Features and Formation Conditions of the Tardan Gold-Sulfide-Quartz Deposit (Northeastern Tuva)
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Mineralogical and Geochemical Features and Formation Conditions of the Tardan Gold-Sulfide-Quartz Deposit (Northeastern Tuva)

机译：托丹金 - 硫化物 - 石英矿床（Tuva）的矿物学和地球化学特征和地层特征及地层特征及地层特征

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摘要

We studied the mineralogical and geochemical features and formation conditions of productive mineral assemblages of the Tardan gold-sulfide-quartz deposit located in the endo-/exocontact zone of the Kopto-Bai-Syut gabbro-diorite-plagiogranite pluton of the Early Ordovician Tannu-Ola complex (O(1)tn). Postskarn mineralization of vein-dissemination type in skarns, quartz diorites, and carbonate rocks is limited by tectonic crushing zones and conjugated with beresitization and listwanitization of the ore-bearing rocks. Mineralogical and geochemical research has shown the formation of ultrahigh-fineness (986-952 parts per thousand) and high-fineness (947-918 parts per thousand) gold at the first productive gold-quartz-calcite substage, of high-fineness gold (918-904 parts per thousand) -> medium-fineness gold (896-809 parts per thousand) -> low-fineness gold (798-756 parts per thousand) +/- hessite Ag2Te +/- volynskite AgBiTe2 at the second productive gold-telluride-sulfide-quartz-carbonate substage, and of medium-fineness gold (897-802 parts per thousand) -> low-fineness gold (799-717 parts per thousand) -> electrum (691-612 parts per thousand) -> mercurian electrum (471-451 parts per thousand) +/- hessite Ag2Te +/- acanthite Ag2S +/- matildite AgBiS2 at the third productive gold-sulfosalt-sulfide-quartz substage. High- and medium-fineness gold prevails in the ores, ultrahigh- and low-fineness gold is subordinate, and electrum and mercurian electrum are scarce. The fineness of native gold in the ores varies from 451 to 986 parts per thousand, averaging 858 parts per thousand. The productive mineral assemblages of the Tardan deposit formed from aqueous fluids containing Mg, Na, and K chlorides (salinity of 6.1-12.9 wt.% NaCl eq.), with a decrease in the mineral formation temperature from 380 to 150 degrees C and variations in f(O2), f(S2), f(Se2), and f(Te2).
机译：我们研究了位于Kopto-Bai-Syut Gabbro-Diorite-Plagiogranith典范的奥丹 - 硫化物 - 石英矿床的矿床和地球化学特征和地球化学特征和地球化学特征和地球化特征和形成条件。 OLA复合物（O（1）TN）。斜坡，石英二流星和碳酸盐岩中的静脉传播型静脉矿化的矿化矿化是由构造破碎区域的限制，并与携带岩石的Bersitization和Listwawsization缀合。矿物学和地球化学研究表明，在第一个生产性金 - 石英 - 石英 - 石英 - 方解石商场，高细度黄金（ 918-904份千分之一份） - >中细病金（896-809份千分比） - >低细度黄金（798-756份）+/- Hessite Ag2te +/- Volynskite Agbite2在第二种生产金 - 硫化硫化物 - 石英 - 碳酸盐等物品，中小细分金（897-802份） - >低细度金（799-717份） - >电气（691-612份） - >梅尔菜Electrum（471-451份）+/- Hessite Ag2te +/- acishite Ag2s +/-穆斯特钛酯Agbis2在第三生产的金 - 硫磺酸 - 硫化物 - 石英等物品。在矿石中具有高和中细度金，超高和低细度金为下属，电型电和梅尔菜胶片是稀缺的。天然金中的本土金子的细度从451到986份，平均858份‰。由含有Mg，Na和K氯化物（6.1-12.9重量％的盐度为6.1-12.9重量％）的含水液形成的塔拉丹矿床的生产性矿物组合。矿物形成温度下降380至150摄氏度和变化在F（O2），F（S2），F（SE2）和F（TE2）中。

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