The aim of the study is the determination of mineralogical and geochemical features of magnetite from massive sulfde and iron deposits to develop forecasting criteria of ore objects. The layered magnetitolites of sulfde (Mauk, Letnee, Sibai and Molodezhnoe) and stratiform iron (Kachar, Sarbai, Estyuninskoe, Osokino-Aleksandrovskoe and Techa) deposits of volcanosedimentary association are the objects of study. It is established using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) that, in contrast to magnetite of iron deposits, magnetite of ore-controlling volcanosedimentary horizons of the Urals massive sulfde deposits is characterized by a higher content and stable associations of Bi, Te, Co, As, Cd, Zn, Cu and Mo due to relict inclusions of sulfde clasts and products of their halmyrolysis. The elevated Ti, V and Zr contents, as well as the mixed associations of lithophile, siderophile and chalcophile elements, are more typical of magnetite of iron deposits after hyaloclastites. Typochemistry of magnetite from volcanosedimentary horizons can be a criterion for searching the massive sulfde deposits.

Received 1.12.2024, revised 10.12.2024, accepted 11.12.2024

Keywords: magnetite, trace elements, massive sulfde deposits, iron deposits, Urals,Funding. This study was supported by the Russian Science Foundation, project no. 22-17-00215.

Confict of interest. The author declare that she has no conficts of interest.

Author contribution. V.V. Maslennikov – conceptualization, investigation, writing original draft; N.R. Ayupova – investigation, writing – review & editing; A.S. Tselyuko – analytical works, visualization; N.P. Safna, U.A. Yatimov, S.I. Bryukhov – investigation; D.A. Artemyev, P.М. Khvorov, M.A. Rassomakhin – analytical works.

For citation: Maslennikov V.V., Ayupova N.R., Tselyuko A.S., Safna N.P., Artemyev D.A.,Yatimov U.A., Bryukhov S.I., Khvorov P.М., Rassomakhin M.A. Typochemistry of magnetite from massive sulfide and iron deposits of the Urals according to LA-ISP-MS data. Mineralogy, 2024, 10(3), 8–40. DOI: 10.35597/2313-545X-2024-10-4-1

V.V. Maslennikov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia; mas@mineralogy.ru

N.R. Ayupova, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

A.S. Tseluyko, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

N.P. Safna, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

D.A. Artemyev, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

U.A. Yatimov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

S.I. Bryukhov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

P.М. Khvorov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia;

M.A. Rassomakhin, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317 Russia

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