This guidebook is dedicated to ultramafic-mafic intrusions, volcanic rocks and the world-class PGE-Cu-Ni sulfide deposits of the Noril’sk Province, Polar Siberia. The characteristics of geology, mineralogy and geochemistry of volcanic rocks and ore-bearing ultramafic-mafic intrusions are briefly outlined. The proposed excursion stops include inspection of the different volcanic and intrusive rocks, associated PGE-Cu-Ni sulfide ores from drill cores and bedrock outcrops. In addition, an open pit Medvezhy Ruchei and two mines (Oktyabrsky and Taimyrsky) collectively provide an overview of the Noril’sk-type intrusions and associated disseminated and massive PGE-Cu-Ni sulfide ores.

Andrei Y. Barkov and Federica Zaccarini Editorial for the Special Issue “Platinum-Group Minerals: New Results and Advances in PGE Mineralogy in Various Ni-Cu-Cr-PGE Ore Systems”
Federica Zaccarini, Giorgio Garuti, Evgeny Pushkarev and Oskar Thalhammer Origin of Platinum Group Minerals (PGM) Inclusions in Chromite Deposits of the Urals
Sai-Hong Yang, Ben-Xun Su, Xiao-Wen Huang, Dong-Mei Tang, Ke-Zhang Qin, Yang Bai, Patrick Asamoah Sakyi and Melesse Alemayehu Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt

Решением XVIII съезда ВКП(б) по докладу тов. В. М. Молотова, о третьем пятилетием плане развития пародпого хозяйства ССОР, поставлена величественная экономическая задача— «догнать и перегнать также и в экономическом отношении наиболее развитые капиталистические етрапы Европы и Соединенные штаты Америки»

В статье приведены результаты изучения химического состава и типоморфных особенностей содержащих редкоземельные элементы минералов Малмыжского золото-меднопорфирового месторождения, находящегося в северо-восточной части Средне-Амурской депрессии, в западной части раннемелового Журавлевского террейна, состоящего из толщ песчаников, алевролитов и турбидитов. Малмыжская порфировая система контролируется тектонической зоной проницаемости СВ простирания и находится в узле пересечения ее региональными разломами разных направлений. Редкоземельная минерализация здесь представлена: безводными фосфатами (монацит, ксенотим, обогащенный редкоземельными элементами фторапатит), силикатами (алланит, торит), фторкарбонатами (синхизит) и оксидами (давидит). В результате метасоматических преобразований пород редкоземельные элементы переотлагались, образуя собственные минеральные формы. Редкоземельные минералы Малмыжского месторождения преимущественно имеют гидротермальное происхождение <...>

Copper is most commonly present in the earth’s crust as coppereironesulfide and copper sulfide minerals, such as chalcopyrite (CuFeS2) and chalcocite (Cu2S). The concentration of these minerals in an ore body is low. Typical copper ores contain from 0.5% Cu (open pit mines, Fig. 1.1) to 1 or 2% Cu (underground mines). Pure copper metal is mostly produced from these ores by concentration, smelting, and refining (Fig. 1.2). Copper also occurs to a lesser extent in oxidized minerals (carbonates, oxides, hydroxy-silicates, sulfates). Copper metal is usually produced from these minerals by leaching, solvent extraction, and electrowinning (Fig. 1.3). These processes are also used to treat chalcocite (Cu2S).
A third major source of copper is scrap copper and copper alloys. Production of copper from recycled used objects is 10 or 15% of mine production. In addition, there is considerable re-melting/re-refining of scrap generated during fabrication and manufacture. Total copper production in 2010 (mined and from end-of-use scrap) was ~20 million tonnes. <...>

Nickel, copper, and cobalt resources in undiscovered Ni-Cu deposits associated with Palaeoproterozoic synorogenic intrusions and Archaean and Palaeoproterozoic komatiitic volcanic rocks have been estimated down to the depth of one kilometre in the bedrock of Finland using the three-part quantitative assessment method. Grade-tonnage models were constructed for Finnish synorogenic intrusive deposits and komatiitic deposits using data from known Fennoscandian deposits. Twenty-six permissive tracts were delineated for synorogenic intrusive deposits, 30 for komatiitic deposits, and 15 for Talvivaaratype Ni-Zn-Cu-Co deposits.

Австралийские протерозойские месторождения железо-оксид-медь-золотых м-й: обзор с новыми металлогеническими и геологоразведочными данными из района Клонкарри, Северо-Западный Квинсленд.

Enigmatic hydrothermal vein/breccia/replacement Cu-Au deposits with magnetite and/or hematite are well-represented in Australian 1850 Ma to 1500 Ma terrains and associated with different-aged synorogenic intrusions in the Tennant Creek Block (ca. 1850 Ma); the Gawler-Curnamona region (1640 Ma to 1590 Ma); and the Cloncurry district (Mount Isa Eastern Fold Belt, 1540 Ma to 1500 Ma with a possible earlier event at ca. 1600 Ma). No deposits are known to be coeval with various 1780 Ma to 1610 Ma anorogenic intrusions. Deposits are hosted by many different rock-types with varying metamorphic grade including granites and various supracrustal rocks. Depth of mineralization varied from many kilometers in semiductile crust (e.g., Cloncurry deposits) to very shallow (e.g., Olympic Dam).

Copper and gold mineralization in the Maher-Abad deposit, eastern Iran, is closely related to the multiple emplacement episodes of Upper Eocene granodiorite porphyries within andesitic volcaniclastic and coeval quartz monzonite stocks. The magmatic hydrothermal fluids thereafter hydrofracturing provided appropriate conduits, formed a stockwork of quartz and quartz–sulfide veinlets within the porphyritic host rocks which were extensively altered into potassic, propylitic, phyllic, and argillic assemblages.

The Masjed Daghi mineralization is located 30 km southeast of Jolfa city at the bank of Araxes River, northwest Iran. This area is situated in the AlborzAzarbaijan structural zone of Iran. The most widespread rocks in the mineralization area are andesite and trachyandesite, while there are rock units of latite tuff, andesitic agglomerate, and hornblende porphyry basalt in eastern hills and Eocene flysch in the southern part of the area. Several intrusive bodies are present in the study area, from which the dominant intrusive rock hosting the mineralization is diorite porphyry.