Field trip 1 Ultramafic-mafic intrusions, volcanic rocks and PGE-Cu-Ni deposits of the Noril sk Province, Polar Siberia

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1 Field trip 1 Ultramafic-mafic intrusions, volcanic rocks and PGE-Cu-Ni deposits of the Noril sk Province, Polar Siberia Duration 8 days + travels Tour starts August 31/07/2014 in Noril sk, the end 7/08/2014 Period: pre-symposium Maximum number of participants: 30. Accommodation: Hotel in Noril sk Estimated cost is 1500 Euro without price on flight tickets to Noril sk and from Noril sk to Yekaterinburg. Dear participants of the Noril sk geological excursion, we are planning to cover your expenses for accommodation at the hotels in Yekaterinburg during 12th Platinum Symposium from your field trip fees. Additional information will be provided for you personally. The field trip will be organized and held by Zapolyarny Branch (Polar Branch), Open Joint Stock Company MMC "Norilsk Nickel". Evgeny Parievsky - responsible person. Scientific leaders: Sergey Sluzhenikin (IGEM RAS) sluzh@igem.ru and Nadya Krivolutskaya (GEOKHI RAS), nakriv@mail.ru Fig. 1. Noril sk district. Flood basalt deposits A striking feature of the Norilsk deposits is the high-degree of concentration of sulphidehosted Cu and Ni as well as PGE that is unique and unknown elsewhere in the world. Despite decades of researches, many questions on the origin of these deposits are still not resolved. The disputable aspects include: compositions of parental magmas and relationship between intrusions and host terrigenous and volcanic rocks; origin of geochemically contrasting ore-bearing and barren intrusive complexes; role and conditions of contamination at formation of massive sulphide ores; mechanism of high-grade PGE mineralization in the complex PGE-Cu-Ni and PGE low-sulphide types of ores. The proposed excursions will give an opportunity to consider a wide spectrum of geological facts, to appreciate the different points of view and to develop your own ideas on the origin of this unique mineralization. We shall visit the mines of the Norilsk Nickel Company, look at cores of the exploration boreholes through the intrusions and examine the sequences of host sedimentary rocks and flood basalts (fig. 1). The zonal transition from pyrrhotite-rich ore through cubanite ones to talnakhite and mooihoekite varieties can be seen in the massive pyrrhotite and high-grade cupriferous orebodies of the Oktyabrsk underground mine. The textural variability of breccia-like ores (Fig. 2) and their

2 relationships with massive ore can be also observed there. The details of massive pyrrhotite and veinlet-disseminated orebodies in the contact of the Kharaelakh intrusion can be seen in the Taimyr underground mine. The orebody is composed of two ore varieties coarse-grained reticulatetextured ore and fine-grained magnetite-rich ore. The direct contact between disseminated sulphide mineralization in picritic and taxitic gabbrodolerite at the base of the Talnakh intrusion and mineralization in metamorphosed and metasomatised sedimentary rocks can be observed in the Komsomolsky underground mine (Fig. 3). Sedimentary rocks are represented by terrigenous rocks of the С2 P2 Tunguska Group and Devonian carbonates. Fig. 2. Breccia-like ores of the Oktyabrsk deposit, the Oktyabrsk mine. The section of the Norilsk-I intrusion with disseminated orebodies in the lower differentiates can be observed in the Medvezhy Ruchei (Bear Creek) open pit. The complete layered sequence from olivine-free to picritic gabbrodolerites with PGE-Cu-Ni ore in the lower part (Fig. 4) and lowsulphide PGE ore in the upper endocontact zone (Fig. 5) should be available for observation. Fig. 3. Millerite-bornite-chalcopyrite veinlet-disseminated ore in serpentinehydrogarnet metasomatite after monticellite skarn. Fig. 4. Pentlandite-chalcopyrite-pyrrhotite disseminated ore in taxitic gabbrodolerite. The Norilsk 1 deposit, the Medvezhy Ruchei mine.

3 Fig. 5 Low sulphide PGE ore in chromite-bearing Taxitic gabbrodolerite in the upper endocontact of the Norilsk 1 intrusion. Fig. 6. Chalcopyrite massif ore. Mayak undegraund mine. Talnakh deposit The exploration cores of the Talnakh, Kharaelakh and Noril sk-i intrusions and related PGE- Cu-Ni and PGE ores will be available in the Norilskgeology coreyard. Program of the field trip 1 Visit to Mining & Metallurgical Company Norilsk Nickel as part of the 12th International Platinum Symposium PROGRAM Local time Schedule July 31, Thursday Arrival to Norilsk airport, by different flights Transfer to Norilsk. Accommodation at the hotel Breakfast at the hotel.

4 Free time Lunch at the hotel Meeting with Director of Mining & Metallurgical Co. Norilsk Nickel Discussion of the program Visit to the Museum of History of Norilsk Industrial Region, the first house in Norilsk (N.N. Urvantsev s House). City tour, visit to Norilsk Golgotha Memorial complex (Scania bus). August 1, Friday Transfer to the Mining and Geology Department (Scania bus) Visit of the Mining and Geology Department, presentation: "An Overview of the deposits and factories of the JSC MMC Norilsk Nickel Visiting the viewing point BC-5 of the Taimyr Mine (local rotational transport) Lunch at Slavianka Diner Transfer to JSC Norilsk Geology (Scania bus) Visit of JSC Norilsk Geology, introduction to its activity, lecture about geology and minerageny of the Norilsk region, visit of the Geological Museum Transfer to Norilsk Free time. August 2, Saturday Transfer to the Mokulay stream area (local rotational transport) Studying and sampling the upper part of the tuff-lava strata section at the Mokulay stream Picnic lunch (sandwiches, vegetables, fruits, juices) Completion of studying and sampling the upper part of the tuff-lava strata section at the Mokulay stream. Transfer to Norilsk (local transport). August 3, Sunday Transfer to JSC Norilsk Geology (Scania bus) Investigation of sections of plateau basalts and the Norilsk-1 intrusion (Maslovskoye deposit) with help of drill cores OM-1 and OM Lunch at Slavianka Diner Investigation of rock lithologies of the Talnakh and Kharaelakh intrusions from drill cores OUG-2, ZF-39 and EM Transfer to Norilsk (Scania bus). August 4, Monday

5 Breakfast at the hotel Transfer to Oktyabrsky and Taimyrsky mines (Scania bus) Group 1. Introductory training, selection of clothes and way-down into the Oktyabrsky mine Group 2. Introductory training, selection of clothes and way-down into the Taimyrsky mine Lunch at Slavyanka Diner Transfer from the site of Oktyabrsky mine to Norilsk (Scania bus) and to Zapolyarny mine («Medvezhy Creek») (local transport). Visit of Zapolyarny open-pit mine ("Medvezhy Creek") Studying of rocks and ores of the differentiated ore-bearing intrusion of the Norilsk complex Transfer to Norilsk (local transport). August 5, Tuesday Transfer to JSC Norilsk Geology (Scania bus) Studying apophyses of the Kharaelakh and Talnakh intrusions from SF and ZF drill cores Lunch at Slavianka Diner Transfer from the site of Oktyabrsky mine to Norilsk, and later on to the Copper Plant (Scania bus) Visit of the Copper Plant Transfer to Norilsk (Scania bus). August 6, Wednesday Breakfast at the hotel Transfer to Oktyabrsky and Taimyrsky mines (Scania bus) Group 2. Introductory training, selection of clothes and way-down into the Oktiabrsky mine Group 1. Introductory training, selection of clothes and way-down into the Taimyrsky mine Lunch at Slavianka Diner Transfer from the site of Oktyabrsky mine to Norilsk (Scania bus) Meeting with managers of Mining & Metallurgical Company Norilsk Nickel Summary of the visit Farewell dinner at the hotel. August 7, Thursday Transfer to Norilsk airport Flight to Yekaterinburg

6 Dear participants of the field trip 1, Please remember, that arrival in Norilsk is July 31, Be responsible to take a flight tickets on one of the following flights: 1) Moscow - Norilsk S7 2251, departing from Domodedovo airport at 22:55, arriving in Norilsk at 7:30am. The price is 13,900 roubles. Please use the link: or 2) Moscow - Norilsk Y7 105, departing from Domodedovo airport at 22:10, arriving in Norilsk at 6:10am. The price is 13,950 roubles. or 3) Moscow - Norilsk Y7 103, departing from Domodedovo airport at 22:55, arriving in Norilsk at 6:45 am. The price is 13,950 roubles. or 4) St. Petersburg - Norilsk Y7 405 departing from Pulkovo Airport at 23:55, arriving in Norilsk at 7:45am. The price is 15,000 roubles Airline link: the lowest airfare is 7000 roubles for the flight: Moscow Norilsk: flight UN at 22:20. Link: The return flight to Yekaterinburg is Y7 917 on , departure time: 11:15, arrival in Yekaterinburg at 12:10, the price is 13,350 roubles. All prices are given as of today and can be a subject of change. If you need to book a hotel in Moscow and/or if you encounter any difficulties when purchasing tickets for the above flights, please contact Nadezhda Krivolutskaya at: nakriv@mail.ru.