Abstract

Unique magmatogenic putoranite ores are developed within deep horizons (more than 1750 m) of the northeastern flank of the Oktyabr’skoe deposit in the Norilsk ore field. These are coarse-grained putoranite aggregates with lamellae of moihoekite and isolated pentlandite disproportionation. The composition of putoranite is [(Fe_17.6–17.9Ni_0.4–1.1Co_0–01)_18–19Cu_15.8–17.0]₃₅S₃₂; the composition of moihoekite is [(Fe_17.8–18.0Ni_0.2–0.3Co_0–01)_18.2–18.3Cu_17.7–17.8]₃₆S₃₂; petlandite contains 1.75 wt % of Co, its composition is (Ni_4.41Fe_4.36Co_0.23)₉S₈. The ores hold pneumatolytic stannopalladinite Pd₅CuSn₂, polyarite Pd(Bi,Pb), plumbopolyarite Pd(Pb,Bi), tetraferroplatinum Pt₂Fe(Fe,Cu,Ni), tulameenite Pt₂Fe(Cu,Fe,Ni), and küstelite (Ag,Au). Bornite is widespread in tectonized ores, as well as later aggregates of hibbingite and Mn-hibbingite (Fe²⁺, Mn²⁺)₂(OH)₃Cl, siderite, and Mn-siderite (Fe²⁺, Mn²⁺)[CO₃] that replaced magnetite and Cu-Fe-Ni sulfides. Pure zvyagintsevite Pd₃Pb and native silver compose syngenetic inclusions in hibbingite and siderite aggregates. Pure zvyagintsevite also replaces pneumatolytic polyarite and plumbopolyarite, the material of which was the probable source of generation of metamorphic-hydrothermal zvyagintsevite. This zvyagintsevite is sharply different from pneumatolytic zvyagintsevite in not having Pt, Sn, Bi, Sb, and Hg. Hypogene phosgenite Pb₂[Cl₂/CO₃] detected for the first time composes pseudomorphs after galena, sometimes intergrown with hibbingite. Being new among the Norilsk ores, the described mineral low-temperature metamorphic-hydrothermal association originated in the presence of carbon dioxide-chloride solutions under reducing conditions. The later hisingerite, bornite, and barite that replaced hibbingite and siderite were formed at increased fugacity of oxygen.

中文翻译：

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诺里尔斯克矿场：一种新的变质-热液矿物组合：岩浆成因磷钨矿中的纯 Zvyagintsevite 和银、黑银矿、锰-黑银矿、菱铁矿、闪锌矿和磷辉石

摘要

在诺里尔斯克矿区 Oktyabr'skoe 矿床东北侧的深层（超过 1750 米）内发育独特的岩浆腐岩矿石。这些是粗粒状的磷灰石聚集体，具有莫伊霍克石片层和孤立的镍钴矿歧化作用。腐榴石的成分为[(Fe _17.6–17.9 Ni _0.4–1.1 Co _0–01 ) _18–19 Cu _15.8–17.0 ] ₃₅ S ₃₂；moihoekite的组成为[(Fe _17.8–18.0 Ni _0.2–0.3 Co _0–01 ) _18.2–18.3 Cu _17.7–17.8 ] ₃₆ S ₃₂; petlandite含有1.75wt%的Co，其成分为(Ni _4.41 Fe _4.36 Co _0.23 ) ₉ S ₈。矿石含有气溶性锡钯矿 Pd ₅ CuSn ₂、聚芳烃 Pd(Bi,Pb)、铅聚芳烃 Pd(Pb,Bi)、四铁铂 Pt ₂ Fe(Fe,Cu,Ni)、图拉敏石 Pt ₂ Fe(Cu,Fe,Ni),和 küstelite (Ag,Au)。斑铜矿广泛存在于构造矿石中，以及后来的黑锰矿和锰黑锰矿(Fe ²⁺ , Mn ²⁺ ) ₂ (OH) ₃ Cl、菱铁矿和锰菱铁矿(Fe ²⁺ , Mn ²⁺ )的聚集体[一氧化碳₃] 取代磁铁矿和 Cu-Fe-Ni 硫化物。纯 zvyagintsevite Pd ₃ Pb 和天然银在黑锰矿和菱铁矿聚集体中构成同生包裹体。纯的 zvyagintsevite 也取代了气溶多晶石和铅多晶石，它们的材料可能是变质-热液 zvyagintsevite 产生的来源。这种 zvyagintsevite 与气溶 zvyagintsevite 有很大不同，因为它不含 Pt、Sn、Bi、Sb 和 Hg。次生光气 Pb ₂ [Cl ₂ /CO ₃] 首次检测到在方铅矿之后构成假形体，有时与黑锰矿共生。作为诺里尔斯克矿石中的新元素，所描述的矿物低温变质-热液联合起源于还原条件下二氧化碳-氯化物溶液的存在。后来取代黑银矿和菱铁矿的黑锌矿、斑铜矿和重晶石是在氧逸度增加的情况下形成的。