Combined study of Au-bearing arsenopyrite of orogenic gold deposits (NE Asia): High resolution 3D X-ray computed tomography, LA-ICP-MS, and EMPA data

Abstract

The distribution of gold in small acicular arsenopyrite of a pyrite-arsenopyrite association from Suzdal (Eastern Kazakhstan), Olympiada (Yenisei Ridge, Russia) and large pseudorhombic arsenopyrite crystals from Bazovskoe (Yakutia, Russia) orogenic-type deposits were investigated. On orogenic gold deposits in NE Asia, occurring mainly in black shales, two productive stages of ore deposition are distinguished, which correspond to two morphological varieties of arsenopyrite. At the early stage, fine-grained acicular-prismatic arsenopyrite with invisible gold was deposited; at the late stage, tabular arsenopyrite in association with free visible gold was formed. The samples of gold-bearing arsenopyrite were analyzed using Scanning Electron Microscopy, Electron Microprobe Analyses, Atomic Absorption and Laser Ablation Inductively Coupled Plasma Mass Spectrometry in combination with High Resolution 3D X-ray Computed Tomography (HRXCT). HRXCT does not destroy the studied mineral during the investigation. That technique permits to do an estimation of the amount of gold inclusions in minerals or host rocks and draw reasonable conclusions about the gold content of the ores, to study in detail the distribution patterns of metal inclusions (associated with certain minerals, cracks, crystal growth faces, etc.) and to determine the form of the gold. It can be used to understanding of the genesis of productive mineral associations, and to developing optimal technological schemes for gold extraction.

Keywords

High resolution 3D X-ray / Computed tomograph / Gold-bearing arsenopyrite / Suzdal at East Kazakhstan / Olympiada and Bazovskoe (Russia) / Orogenic gold deposits

References

E.A. Agorhom, W. Skinner, M. Zanin. Upgrading of low-grade gold ore samples for improved particle characterisation using Micro-CT and SEM/EDX. Adv. Powder Technol., 23 (2012), pp. 498-508,

G.B. Arehart, S.L. Chryssoulis, S.E. Kesler. Gold and arsenic in iron sulfides from sediment-hosted disseminated gold deposits; implications for depositional processes. Econ. Geol., 88 (1993), pp. 171-185,

S.J. Barnes, M.L. Fiorentini, P. Austin, K. Gessner, R.M. Hough, A.P. Squelch. Three-dimensional morphology of magmatic sulfides sheds light on ore formation and sulfide melt migration. Geology, 36 (2008), p. 655,

L.G. Benning, T.M. Seward. Hydrosulfide complexing of Au (I) in hydrothermal solutions from 150–400 °C and 500–1500 bars. Geochim. Cosmochim. Acta, 60 (1996), pp. 1849-1872

M. Benzaazoua, P. Marion, F. Robaut, A. Pinto. Gold-bearing arsenopyrite and pyrite in refractory ores: analytical refinements and new understanding of gold mineralogy. Mineral. Mag., 71 (2007), pp. 123-142

L. Bindi, Y. Moelo, P. Leone, M. Suchaud. Stoichiometric arsenopyrite, FeAsS, from La Roche-Balue Quarry, Loire-Atlantique, France: crystal structure and Mössbauer study. Can. Miner., 50 (2012), pp. 471-479,

L.J. Cabri, M. Newville, R.A. Gordon, E.D. Crozier, S.R. Sutton, G. McMahon, D.-T. Jiang. Chemical speciation of gold in arsenopyrite. Can. Miner., 38 (2000), pp. 1265-1281,

M. Cathelineau, M.C. Boiron, P. Holliger, P. Marion, M. Denis. Gold in arsenopyrites: crystal chemistry, location and state, physical chemical conditions of deposition. The geology of Gold deposits: The Perspective in 1988. Econ. Geol. Monograph, 6 (1989), pp. 328-340

D. Chetty, W. Clark, C. Bushell, T.P. Sebola, J. Hoffman, R. Nshimirimana, F. De Beer. . The Use of 3D X-Ray Computed Tomography for Gold Location in Exploration Drill Cores, Springer Berlin Heidelberg, Berlin, Heidelberg (2012), pp. 129-136,

J. Chisambi, B. von der Heyden, M. Tshibalanganda, S. Le Roux. Gold exploration in two and three dimensions: improved and correlative insights from microscopy and X-Ray computed tomography. Minerals, 10 (2020), p. 476,

V. Cnudde, M.N. Boone. High-resolution X-ray computed tomography in geosciences: a review of the current technology and applications. Earth-Sci. Rev., 123 (2013), pp. 1-17,

N.J. Cook, C.L. Ciobanu, D. Meria, D. Silcock, B. Wade. Arsenopyrite-pyrite association in an orogenic gold ore: tracing mineralization history from textures and trace elements. Econ. Geol., 108 (2013), pp. 1273-1283,

M.F. da Costa, J.R. Kyle, L.M. Lobato, R.A. Ketcham, R.C. Figueiredo, F. Silva, R.C. Fernandes. Orogenic gold ores in three-dimensions: a case study of distinct mineralization styles at the world-class Cuiabá deposit, Brazil, using high-resolution X-ray computed tomography on gold particles. Ore Geol. Rev., 140 (2022), Article 104584

A.P. Deditius, M. Reich, S.E. Kesler, S. Utsunomiya, S.L. Chryssoulis, J. Walshe, R.C. Ewing. The coupled geochemistry of Au and As in pyrite from hydrothermal ore deposit. Geochim. Cosmochim. Acta, 140 (2014), pp. 644-670

A. Fatima, A.S. Venkatesh, R. Mukherjee, A.K. Agrawal, B. Singh, P.S. Sarkar, T. Shripathi. 3D spatial distribution of ore mineral phases using high resolution synchrotron micro-computed tomography (μCT) combined with optical microscopy. Appl. Radiat. Isot., 148 (2019), pp. 49-59

D. Fougerouse, S.M. Reddy, D.W. Saxey, W.D.A. Rickard, A. van Riessen, S. Micklethwaite. Nanoscale gold clusters in arsenopyrite controlled by growth rate not concentration: evidence from atom probe microscopy. Am. Miner., 101 (2016), pp. 1916-1919,

V.Y. Fridovsky, G.N. Gamyanin, L.I. Polufuntikova. Structures, mineralogy, and fluid regime of ore formation in the polygenetic Malo-Taryn gold field, Northeast Russia. Rus. J. Pacific Geol., 9 (2015), pp. 274-286,

V.Y. Fridovsky, L.I. Polufuntikova, N.A. Goryachev, M.V. Kudrin. Ore-controlling thrust faults at the Bazovskoe gold-ore deposit (Eastern Yakutia). Doklady Earth Sci., 474 (2017), pp. 617-619,

V.Y. Fridovsky, L.I. Polufuntikova, M.V. Kudrin. Origin of disseminated gold-sulfide mineralization from proximal alteration in orogenic gold deposits in the central sector of the Yana-Kolyma Metallogenic Belt, NE Russian. Minerals, 13 (2023), p. 394,

A.D. Genkin, N.S. Bortnikov, L.J. Cabri, F.E. Wagner, C.J. Stanley, Y.G. Safonov, G. McMahon, J. Friedl, A.L. Kerzin, G.N. Gamyanin. A multidisciplinary study of invisible gold in arsenopyrite from four mesothermal gold deposits in Siberia, Russian Federation. Econ. Geol., 93 (1998), pp. 463-487,

Y. Ghorbani, M. Becker, J. Petersen, S.H. Morar, A. Mainza, J.-P. Franzidis. Use of X-ray computed tomography to investigate crack distribution and mineral dissemination in sphalerite ore particles. Minerals Eng., 24 (2011), pp. 1249-1257,

B. Godel. High-resolution X-Ray computed tomography and its application to ore deposits: from data acquisition to quantitative three-dimensional measurements with case studies from Ni-Cu-PGE deposits. Econ. Geol., 108 (2013), pp. 2005-2019,

R.J. Goldfarb, T. Baker, B. Dube, D.I. Groves, C.J.R. Hart, P. Gosselin. . Distribution, character, and genesis of gold deposits in metamorphic terranes, Society of Economic Geologists, Littleton, Colorado (2005), pp. 407-450

R.J. Goldfarb, I. Pitcairn. Orogenic gold: is a genetic association with magmatism realistic?. Mineral. Deposit., 58 (1) (2023), pp. 5-35,

D.I. Groves, R.J. Goldfarb, M. Gebre-Mariam, S.G. Hagemann, F. Robert. Orogenic gold deposits: a proposed classification in the context of their crustal distribution and relationship to other gold deposit types. Ore Geol. Rev., 13 (1) (1998), pp. 7-27

D.I. Groves, M. Santosh, J. Deng, Q. Wang, L. Yang, L. Zhang. A holistic model for the origin of orogenic gold deposits and its implications for exploration. Mineral. Deposit., 55 (2) (2020), pp. 275-292,

P.I. Guntoro, Y. Ghorbani, P.-H. Koch, J. Rosenkranz. X-ray microcomputed tomography (µCT) for mineral characterization: a review of data analysis methods. Minerals, 9 (2019), p. 183,

K.I. Hayashi, H. Ohmoto. Solubility of gold in NaCl and H2S bearing aqueous solutions at 250–350 ℃. Geochim. Cosmochim. Acta, 55 (1991), pp. 2111-2126

J.G. Hinchey, D.H.C. Wilton, M.N. Tubrett. A LAM ICP MS study of the distribution of gold in arsenopyrite from the Lodestar prospect, Newfoundland, Canada. Can. Mineral., 41 (2003), pp. 353-364,

R.M. Hough, R.R.P. Noble, M. Reich. Natural gold nanoparticles. Ore Geol. Rev., 42 (2011), pp. 55-61,

I. Jelic, J. Zavasnik, M. Lazarov, A. Zdravkovic, S. Kovac, J. Stojanovic, A. Pacevski. Micro- to nanoscale textures of gold in arsenopyrite and scorodite from the As-Au-Bi assemblage of Drenjak locality (Serbia). Ore Geol. Rev., 163 (2023), Article 105711,

S.-Y. Jiang, Y. Ma, D.-L. Liu, W.-T. Li. Orogenic gold deposits: mineralization mechanism and research perspectives. J. Earth Sci., 34 (6) (2023), pp. 1758-1761,

Y.A. Kalinin, E.A. Naumov, A.S. Borisenko, K.R. Kovalev, A.I. Antropova. Spatial-temporal and genetic relationships between gold and antimony mineralization at gold-sulfide deposits of the Ob-Zaisan folded zone. Geol. Ore Deposit., 57 (2015), pp. 157-171,

Y.A. Kalinin, G.A. Palyanova, E.A. Naumov, K.R. Kovalev, F. Pirajno. Supergene remobilization of Au in Au-bearing regolith related to orogenic deposits: a case study from Kazakhstan. Ore Geol. Rev., 109 (2019), pp. 358-369,

R.A. Ketcham. Computational methods for quantitative analysis of three-dimensional features in geological specimens. Geosphere, 1 (2005), p. 32,

C. Khishgee, M. Akasaka. Mineralogy of the Boroo Gold Deposit in the North Khentei Gold Belt, Central Northern Mongolia. Res. Geol., 65 (4) (2015), pp. 311-327,

E.V. Kovalchuk, B.R. Tagirov, I.V. Vikentyev, D.A. Chareev, E.E. Tyukova, M.S. Nikolsky, N.S. Bortnikov. “Invisible” gold in synthetic and natural arsenopyrite crystals, Vorontsovka Deposit, Northern Urals. Geol. Ore Deposit., 61 (2019), pp. 447-468,

K.R. Kovalev, Y.A. Kalinin, E.A. Naumov, F. Pirajno, A.S. Borisenko. A mineralogical study of the Suzdal sediment-hosted gold deposit, Eastern Kazakhstan: implications for ore genesis. Ore Geol. Rev., 35 (2009), pp. 186-205,

K.R. Kovalev, Y.A. Kalinin, E.A. Naumov, M.K. Kolesnikova, V.N. Korolyuk. Gold-bearing arsenopyrite in eastern Kazakhstan gold-sulfide deposits. Rus. Geol. Geophy., 52 (2011), pp. 178-192,

K.R. Kovalev, Y.A. Kalinin, V.I. Polynov, E.L. Kydyrbekov, A.S. Borisenko, E.A. Naumov, M.I. Netesov, A.G. Klimenko, M.K. Kolesnikova. The Suzdal gold-sulfide deposit in the black shale of Eastern Kazakhstan. Geol. Ore Deposit., 54 (2012), pp. 254-275,

R.G. Kravtsova, V.L. Tauson, E.M. Nikitenko. Modes of Au, Pt, And Pd occurrence in arsenopyrite from the Natalkinskoe deposit, NE Russia. Geochem. Int., 53 (11) (2015), pp. 964-972,

M.V. Kudrin, V.Y. Fridovsky, L.I. Polufuntikova, L.Y. Kryuchkova. Disseminated gold-sulfide mineralization in metasomatites of the Khangalas Deposit, Yana-Kolyma Metallogenic belt (Northeast Russia): analysis of the texture, geochemistry, and S isotopic composition of pyrite and arsenopyrite. Minerals, 11 (2021), p. 403,

J.R. Kyle, R.A. Ketcham. Application of high resolution X-ray computed tomography to mineral deposit origin, evaluation, and processing. Ore Geol. Rev., 65 (2015), pp. 821-839,

J.R. Kyle, A.S. Mote, R.A. Ketcham. High resolution X-ray computed tomography studies of Grasberg porphyry Cu-Au ores, Papua, Indonesia. Miner. Deposit., 43 (2008), pp. 519-532,

Y. Liang, H. Ge, Q. Pei, H. Huang, K. Hoshino. 3D plotting of gold solubility and gold fineness: quantitative analysis of ore-forming conditions in hydrothermal gold deposits. Lithosphere, 208 (2023), p. 21,

S. Lohmeier, R.R. Gainov, A. Hodgkin. Morphological characterization of lode gold in the auriferous quartz veins at M’Popo mine, Angola, by computed tomography and optical microscopy. Appl. Earth Sci., 132 (2) (2023), pp. 1-25,

M. Merkulova, O. Mathon, P. Glatzel, M. Rovezzi, V. Batanova, P. Marion, M.-C. Boiron, A. Manceau. Revealing the chemical form of “invisible” gold in natural arsenian pyrite and arsenopyrite with high energy-resolution X-ray absorption spectroscopy. ACS Earth Space Chem., 3 (2019), pp. 1905-1914,

A.A. Morey, A.G. Tomkins, F.P. Bierlein, R.F. Weinberg, G.J. Davidson. Bimodal distribution of gold in pyrite and arsenopyrite: examples from the Archean Boorara and bardoc shear systems, Yilgarn Craton, Western Australia. Econ. Geol., 103 (2008), pp. 599-614,

E.A. Naumov, A.S. Borisenko, P.A. Nevolko, K.R. Kovalev, S. Tessalina, A.M. Sazonov, A.A. Savichev, E.A. Zvyagina. Gold-sulfide (Au-As) Deposits of the Yenisei Ridge (Russia): age, sources of metals and nature of fluids. Min. Resour. Sustain. World, 1–5 (2015), pp. 165-168

E. Naumov, K. Kovalev, Yu. Kalinin, G. Palyanova, V. Voitenko. High resolution 3D x-ray computed tomography: Application for the study of gold-bearing arsenopyrite. Life with ore deposits on Earth. Proceedings of the 15th SGA Biennial Meeting, 2 (2019), pp. 803-806

A.D. Nozhkin, A.S. Borisenko, P.A. Nevol’ko. Stages of Late Proterozoic magmatism and periods of Au mineralization in the Yenisei Ridge. Rus. Geol. Geophys., 52 (2011), pp. 124-143,

G. Pal’yanova. Physicochemical modeling of the coupled behavior of gold and silver in hydrothermal processes: gold fineness, Au/Ag ratios and their possible implications. Chem. Geol., 255 (2008), pp. 399-413,

C.S. Palenik, S. Utsunomiya, M. Reich, S.E. Kesler, L. Wang, R.C. Ewing. “Invisible” gold revealed: direct imaging of gold nanoparticles in a Carlin-type deposit. Am. Miner., 89 (2004), pp. 1359-1366,

G.N. Phillips, R. Powell. Formation of gold deposits: a metamorphic devolatilization model. J. Metamorphic Geol., 28 (6) (2010), pp. 689-718,

Phillips, G.N., 2013. Australian and global setting for gold in 2013, in Proceedings World Gold 2013, Brisbane, Australia, 26–29 September, 2013. The Australian Institute of Mining and Metallurgy, p. 15–21.

Rafailovich, M.S., 2009. Gold Deposits of Kazakhstan: Geology, Metallogeny, Exploration Models. Almaty, Kazakhstan.

I. Safonova, A. Kotlyarov, S. Krivonogov, W. Xiao. Intra-oceanic arcs of the Paleo-Asian Ocean. Gondwana Res., 50 (2017), pp. 167-194,

A.M. Sazonov, K.V. Lobanov, E.A. Zvyagina, S.I. Leontiev, S.A. Silyanov, N.A. Nekrasova, A.B. Borodushkin, V.A. Poperekov, V.V. Zhuravlev, S.S. Ilyin, Yu.A. Kalinin, A.A. Savichev, A.S. Yakubchuk. Olympiada Gold Deposit, Yenisei Ridge, Russia. Society of Economic Geologists, Inc. SEG Special Publications, 23 (2020), pp. 203-226,

A.M. Sazonov, S.D. Kirik, S.A. Silyanov, O.A. Bayukov, P.A. Tishin. Typomorphism of arsenopyrite from the Blagodatnoe and Olimpiada gold deposits (Yenisei Ridge). Mineralogy, 3 (2016), pp. 53-70

N.V. Sidorova, V.V. Aristov, A.V. Grigor’eva, A.A. Sidorov. “Invisible” gold in pyrite and arsenopyrite from the Pavlik deposit (northeastern Russia). Doklady Earth Sci., 495 (1) (2020), pp. 821-826

S.A. Silyanov, A.M. Sazonov, E.A. Naumov, B.M. Lobastov, Y.A. Zvyagina, D.A. Artemyev, N.A. Nekrasova, F. Pirajno. Mineral Paragenesis, formation stages and trace elements in sulfides of the Olympiada gold deposit (Yenisei Ridge, Russia). Ore Geol. Rev., 143 (2022), Article 104750,

A. Stefansson, T.M. Seward. Gold (I) complexing in aqueous sulphide solutions to 500 °C at 500 bar. Geochim. Cosmochim. Acta, 68 (2004), pp. 4121-4143

Y.H. Sung, J. Brugger, C.L. Ciobanu, A. Pring, W. Skinner, M. Nugus. Invisible gold in arsenian pyrite and arsenopyrite from a multistage Archaean gold deposit: sunrise Dam, Eastern Goldfields Province, Western Australia. Miner. Depos., 44 (2009), p. 765,

V.L. Tauson, R.G. Kravtsova, N.V. Smagunov. Structural and surface–bond gold in pyrite from deposits of various genetic types. Russ. Geol. Geophys., 55 (2014), pp. 350-369

V. Tauson, S. Lipko, R. Kravtsova, N. Smagunov, O. Belozerova, I. Voronova. Distribution of “invisible” noble metals between pyrite and arsenopyrite exemplified by minerals coexisting in orogenic Au deposits of North-Eastern Russia. Minerals, 9 (2019), p. 660,

A.L. Trigub, B.R. Tagirov, K.O. Kvashnina, A. Chareev, M.S. Nickolsky, A.A. Shiryaev, N.N. Baranova, E.V. Kovalchuk, A.V. Mokhov. X-ray spectroscopy study of the chemical state of “invisible” Au in synthetic minerals in the Fe-As-S system. Am. Miner., 102 (2017), pp. 1057-1065,

I. Vikentyev, O. Vikent’eva, E. Tyukova, M. Nikolsky, J. Ivanova, N. Sidorova, D. Tonkacheev, V. Abramova, V. Blokov, A. Spirina, D. Borisova, G. Palyanova. Noble metal speciations in hydrothermal sulphides. Minerals, 11 (2021), p. 488,

Voitenko, V.N., 2014. Native gold crystallization form in arsenopyrite’s ore from Bazovsky deposite (from X-Ray Tomography data). Proceedings of the III Conf. “Practical Microtomography”, St. Petersburg 26–28.

A.V. Volkov, A.D. Genkin, V.I. Goncharov. Gold species in ores of the Natalkinskoe and Maiskoe deposits (northeastern Russia). Tikhookeanskaya Geologiya, 25 (2007), pp. 18-29

M. Warlo, G. Bark, C. Wanhainen, A.R. Butcher, F. Forsberg, H. Lycksam, J. Kuva. Multi-scale X-ray computed tomography analysis to aid automated mineralogy in ore geology research. Front. Earth Sci., 9 (2021), Article 789372,

A.E. Williams-Jones, R.J. Bowell, A.A. Migdisov. Gold in solution. Elements, 5 (5) (2009), pp. 281-287,

Zhmodik, S.M., 2008. Gold-Concentrating Systems of Ophiolite Belts (by the Example of the Sayan–Baikal–Muya Belt). Akademicheskoe Izd. “Geo”, Novosibirsk (in Russian).