New Insights on the Origin of Ultramafic-Mafic Intrusions and Associated Ni-Cu-PGE Sulfide Deposits of the Noril’sk and Taimyr Provinces, Russia

Malitch, K. N.; Белоусова, Елена; Griffin, William L.; Badanina, I. Yu.; Latypov, Rais; Sluzhenikin, Sergey F.

doi:10.1016/b978-0-12-811159-8.00008-1

Cited by 18 publications

(20 citation statements)

References 96 publications

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“…They were related to the Noril'sk intrusive complex [64] comprising differentiated ultrabasic-basic bodies. Their characteristics have been given in many publications [8,31,34,45,47,[65][66][67][68][69][70]. The gabbro-dolerite layers were recognized within a vertical cross-section of intrusions (from bottom to top according to the Russian classification): contact, taxitic, picritic, olivine, olivine-bearing, and olivine free.…”

Section: Intrusive Rocksmentioning

confidence: 99%

“…These rocks have the primitive composition of the parental magma and are enriched in Ti (Figures 8b and 9a). Nevertheless, they contain economic PGE-Cu-Ni mineralization which is similar to the Noril'sk ores in mineralogy and isotopic composition [16,67,69,70,93]. (3) The Lower Talnakh complex, often regarded as an intrusive type within the Noril'sk complex (similar to the Nadezhdinsky Formation in geochemistry), combines many bodies of different shapes and sizes.…”

Section: Intrusive Rocksmentioning

confidence: 99%

“…(3) The Lower Talnakh complex, often regarded as an intrusive type within the Noril'sk complex (similar to the Nadezhdinsky Formation in geochemistry), combines many bodies of different shapes and sizes. The largest Binyudinsky massif was discovered in Taimyr and has been described in some publications [69,70,94]. In the Noril'sk area, this complex comprises the large Lower Talnakh, Zelenaya Griva (Table 4), and Klukvenny intrusions and some small intrusive bodies in the southern part of the territory.…”

Section: Intrusive Rocksmentioning

confidence: 99%

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Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin

et al. 2019

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The unique and very large PGE–Cu–Ni Noril’sk deposits are located within the Siberian trap province, posing a number of questions about the relationship between the ore-forming process and the magmatism that produced the traps. A successful answer to these questions could greatly increase the possibility of discovering new deposits in flood basalt provinces elsewhere. In this contribution, we present new data on volcanic stratigraphy and geochemistry of the magmatic rocks in the key regions of the Siberian trap province (Noril’sk, Taimyr, Maymecha-Kotuy, Kulyumber, Lower Tunguska and Angara) and analyze the structure of the north part of the province. The magmatic rocks of the Arctic zone are characterized by variable MgO (3.6–37.2 wt %) and TiO2 (0.8–3.9 wt %) contents, Gd/Yb (1.4–6.3) and La/Sm (2.0–10.4) ratios, and a large range of isotopic compositions. The intrusions in the center of the Tunguska syneclise and Angara syncline have much less variable compositions and correspond to a “typical trap” with MgO of 5.6–7.2 wt %, TiO2 of 1.0–1.6 wt %, Gd/Yb ratio of 1.4–1.6 and La/Sm ratio of 2.0–3.5. This compositional diversity of magmas in the Arctic zone is consistent with their emplacement within the paleo-rift zones. Ore-bearing intrusions (the Noril’sk 1, Talnakh, Kharaelakh) are deep-situated in the Igarka-Noril’sk rift zone, which has three branches, namely the Bolsheavamsky, Dyupkunsky, and Lower Tunguska, that are prospected for discovering new deposits. One possible explanation for the specific position of the PGE–Cu–Ni deposits is accumulation of sulfides in these long-lived zones from the Neoproterozoic to the Mesozoic era during magmatic and metamorphic processes. Thus, trap magmatism, itself, does not produce large deposits, but mobilizes earlier formed sulfide segregations in addition carrying metals in the original magmas. These deposits are the results of several successive magmatic events, in which emplacement of the traps was the final event.

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Section: Intrusive Rocksmentioning

confidence: 99%

Section: Intrusive Rocksmentioning

confidence: 99%

Section: Intrusive Rocksmentioning

confidence: 99%

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Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin

et al. 2019

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“…Т-16). Особенности внутреннего строения цирконов, характер распределения в них тория, урана и редкоземельных элементов, а также изотопные U-Pb-и Lu-Hf-результаты приведены ранее [4,10].…”

Section: геохимияunclassified

“…Обоснование глубинной природы цирконов Талнахского интрузива согласуется с результатами изучения их Hf-изотопной систематики. Преобладающая выборка значений изотопного состава гафния цирконов (εHf среднее = 9,1 ± 3,2; n = 40 [10]) отвечает параметрам, характерным для "ювенильного" мантийного источника и свидетельствует об участии вещества деплетированной мантии в первичных расплавах Талнахского интрузива. Таким образом, данные по изотопии кислорода явля-ются ключевым источником информации для обоснования ведущей роли мантийных производных при генерации интрузивов "норильского типа".…”

Section: геохимияunclassified

Oxygen isotope composition of zircons from the Talnakh economic intrusion of the Noril’sk province: first data

Badanina

Белоусова

Malitch

et al. 2019

Доклады Академии наук

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This study presents the first results of oxygen isotope analyses (18O) collected on zircons from the Talnakh economic intrusion within the Norilsk province. Zircons from gabbro-diorite, gabbroic rocks of the layered series and plagioclase-bearing wehrlite have similar mantle-like mean 18O values (5,39 0,49; 5,64 0,48 and of 5,28 0,34, respectively), which differ from 18O in zircons from sulfide-bearing melanocratic troctolite with a taxitic texture in the lower part of the intrusion (mean 18O = 6,50 0,98). These new oxygen isotope data support (i) the mantle-derived origin of the primary magma(s), parental to the Talnakh intrusion, and (ii) possible involvement of a crustal component during the formation of sulfide-bearing taxitic-textured rocks.

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Differentiated Mafic–Ultramafic Intrusions of the Zubovsky Type in the Norilsk Area: Petrochemistry, Geochemistry, and Ore Potential

et al. 2020

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New Insights on the Origin of Ultramafic-Mafic Intrusions and Associated Ni-Cu-PGE Sulfide Deposits of the Noril’sk and Taimyr Provinces, Russia

Cited by 18 publications

References 96 publications

Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin

Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin

Oxygen isotope composition of zircons from the Talnakh economic intrusion of the Noril’sk province: first data

Differentiated Mafic–Ultramafic Intrusions of the Zubovsky Type in the Norilsk Area: Petrochemistry, Geochemistry, and Ore Potential

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