Abstract
The Late Jurassic orogenic volcanogenic–plutonogenic Darasun gold deposit of the beresite–listvenite gold-sulfide-quartz formation is situated in the Mesozoids of the Eastern Transbaikalian segment of the Mongol–Okhotsk folded belt. The deposit includes Au–Bi and post-gold antimony mineralization. Carbonate–quartz–sulfide veins in the western part of the deposit, composed of gabbroids, gabbro amphibolites, and, to a lesser extent, ultramafic rocks are surrounded by listvenite aureoles. The Au-rich ores were formed under conditions of low activity of sulfide sulfur; they contain pyrrhotite, arsenopyrite, chalcopyrite, bismuthinite, and Pb–Bi sulfosalts associated with a high fineness gold (949–935‰). Aurostibite pseudomorphs after gold minerals have appeared there due to a superimposition of the antimony mineralization with native antimony on gold ores. This aurostibite contains 1.1–1.7 wt % Bi and 0.1–0.3 wt % As, isomorphically replacing Sb. Its composition is Au0.998–1.005(Sb1.947–1.965Bi0.024–0.036As0.009–0.017)1.995–2.002, and the average composition is Au1.001(Sb1.956Bi0.031As0.012)1.999. Aurostibite does not contain silver. Silver released during the replacement of native gold with aurostibite occurs near its metacrystals in the composition of heterogeneous reaction rims of newly formed gold minerals. They are represented by silver-bearing native gold (fineness 922–712, mostly 919–911) and electrum (fineness 693–584, mostly 625–604). The distribution of the gold fineness in the newly formed minerals of the gold–silver series, as a part of the antimony mineralization, in the volcanogenic–plutonogenic Darasun deposit is very heterogeneous and “irregular.”
REFERENCES
Al’shevsky, A.V., Intermetallides of native gold–maldonite and aurostibite from deposits of the North-East Russia, In: Problemy geologii i metallogenii Severo-Vostoka Azii na rubezhe tysyacheletii (Problems of Geology and Metallogeny of the Northeast Asia at the Millennium Boundary), Magadan: SVKNII Far East Branch RAS, DVO RAS, 2001, pp. 131–134.
Amuzinsky, V.A., Anisimova, G.S., and Zhdanov, Yu.Ya., Sarylahskoe i Sentachanskoe zoloto-sur’myanye mestorozhdeniya: geologiya, mineralogiya, geohimiya (Sarylakh and Sentachan Au–Sb Deposits: Geology, Mineralogy, and Geochemistry), Moscow: Nauka, 2001.
Ashley, P.M., Cook, N.D.J., and Hill, R.L., Occurrence and significance of aurostibite in Sb–Au ore from Hillgrove, New South Wales, Australia, Neues Jahrb. Mineral. Monatsh., 1990, pp. 537–551.
Barton P.B., Skinner B.J., Sulfide mineral stabilities, In: Geochemistry of Hydrothermal Ore Deposits, New York: John Willey and Sons, 1979, pp. 278–403.
Boldyrev, A.K., Betekhtin, A.G., Godlevsky, M.N., Grigor’ev, D.P., Kiselev, A.I., Levitsky, O.D., Razumovsky, I.K., Smirnov, A.A., Sobolev, V.S., Solov’ev, S.P., Uspensky, N.M., Chernykh, V.V., Shatalov, E.T., and Shavranovsky, I.I., Kurs Mineralogii (Course of Mineralogy), Moscow-: Leningrad: ONTI, 1936.
Bryzgalov, I.A., Krivitskaya, N.N., and Spiridonov, E.M., The first discovery of nisbite and aurostibite in Eastern Transbaikalia, Dokl. Earth Sci., 2007, vol. 417, no. 1, pp. 1265–1267.
Bryzgalov, I.A., Krivitskaya, N.N., and Spiridonov, E.M., First find of the minerals of jordanite–geocroniteschulzite in one deposit (Darasun, Eastern Transbaikalia), Dokl. Earth Sci., 2011, vol. 438, no. 2, pp. 815–818.
Chernyschov, I.V., Prokofiev, V.Yu., Bortnikov, N.S., Chugaev, A.V., Gol’tsman, Yu.V., Lebedev, V.A., Larionova, O.O., and Zorina, L.D., Age of granodiorite porphyry and beresite from the Darasun gold field, eastern Transbaikalia region, Russia, Geol. Ore Deposits, 2014, vol. 56, pp. 1–14.
Dill, H.G., Weiser, T., and Bernhardt, I.R., The composite gold–antimony deposit at Kharma (Bolivia), Econ. Geol., 1995, vol. 90, pp. 51–66.
Filimonova, A.A., Description of the Darasun deposit. In: Strukturno-teksturnye osobennosti endogennyh rud (Structural and Textural Features of Endogenous Ores), Moscow: Nedra, 1964, pp. 419–437.
Fogel’man, N.A., Tectonics of the Mezozoic arched uplift at Transbaikalia and regularity of placement of gold deposits within it, Tr. TSNIGRI, 1962, vol. 84, pp. 81–93.
Graham, A.R. and Kaiman, S., Aurostibite, AuSb2: a new mineral in the pyrite group, Am. Mineral., 1952, vol. 37, pp. 461–469.
Gromova, E.I., Zavyalova, L.L., and Glotov, A.M., Finding of rare gold minerals (maldonite, aurostibite) in the ores of the Zarmitan (Charmitan) deposit of Western Uzbekistan, Zap. Uzb. Otd. VMO, 1979, no. 31, pp. 38–40.
Hytonen, K., Suomen Mineraalit. Geologian Tutkimuskeskus, Erillisjulkaisen, 1999.
Indolev, L.N. and Zhdanov, Yu.Ya., Aurostibite from Au–Sb deposits at Yakutia, Zap. Ross. Mineral. O-va, 1975, vol. 104, pp. 586–588.
Kreiter, V.M., Poiski i razvedki poleznyh iskopaemyh (Search and Prospecting of Minerals, Moscow–Leningrad: Gosgeolizdat, 1940.
Krivitskaya, N.N., Spiridonov, E.M., Bryzgalov, I.A., and Sankin, Yu.I., Genetic mineralogy of gold in the volcanogenic-plutonogenic Darasun deposit, Transbaikalia, In: Tez. dokladov godichnogo sobraniya RMO (Proc. Annual Meet. Russian Miner. Soc.), St Petersburg, 2012, pp. 145–147.
Lyakhov, Yu.V. and Dmitriev, L.K., Physical and chemical conditions of mineral formation at the Darasun gold deposit (Eastern Transbaikalia) by inclusions in minerals, Mineral. Sb. L’vov. Univ., 1075, vol. 29. No. 3, pp. 48–56, no. 4, pp. 17–22.
Naz’mova, G.N., Spiridonov, E.M., and Schalaev, Yu.S., Aurostibite from the Bestube deposit, Northern Kazakhstan (first find in USSSR), Dokl. Akad. Nauk SSSR, 1975, vol. 222, pp. 687–689.
Ortega, L., Oyarzun, R., and Gallego, M., The Mari Rosa late Herzinian Sb-Au deposit, Western Spain: Geology and geochemistry of the mineralizing processes, Mineral. Deposita, 1996, vol. 31, no. 3, pp. 172–187.
Pianton, P., Wu, X., and Touray, J.-C., Zoned hydrothermal alteration and genesis of the gold deposit at Le Chatelet (French Massif Central), Econ. Geol., 1994, vol. 89, pp. 757–777.
Prokofiev, V.Yu. and Zorina, L.D., Fluid regime of the Darasun ore-magmatic system (Eastern Transbaikalia) according to the study of fluid inclusions, Russ. Geol. Geophys, 1996, vol. 37, no. 5, pp. 50–61.
Ramdohr, P., The Ore Minerals and their Intergrowths, Pergamon Press, 1982.
Sakharova, M.S., Stages of ore formation processes and the problem of zoning at the Darasun gold deposit, In: Rudoobrazovanie i ego svyaz' s magmatizmom (Ore Formation and its Relation with Magmatism), Moscow: Nauka, 1972, pp. 213–222.
Sakharova, M.S. and Krivitskaya, N.N., On the discovery of williamite and breithauptite in Transbaikalia, Dokl. Akad. Nauk SSSR, 1970a, vol. 193, no. 3, pp. 687–689.
Sakharova, M.S. and Krivitskaya, N.N., About chalcostibite of the Darasun deposit, Zap. Ross. Mineral. O-va, 1970b, vol. 99, no. 3, pp. 340–344.
Spiridonov, E.M., Inversion plutonogenic gold–quartz formation of the Caledonides of the north of Central Kazakhstan, Geol. Ore Deposits, 1995, vol. 37, no. 3, pp. 179–207.
Spiridonov, E.M., New data on the mineralogy of plutonogenic gold–quartz formation deposits in the north of Central Kazakhstan: Part 2, Tr. Mineral. Muz. RAN im A.E.Fersmana, 2015, vol. 50, pp. 69–82.
Spiridonov E.M., Naz’mova, Schalaev Yu.S., Schavkin G.N. Bestube deposit, In: Geologiya zolotorudnyh mestorozhdenij SSSR. T. II. Mestorozhdeniya Srednei Azii i Kazahstana, (Geology of Gold deposits in the USSR. Volume 2. Deposits at Central Asia and Kazakhstan), Moscow: TSNIGRI, 1986, pp. 32–43.
Spiridonov, E.M., Bryzgalov, I.A., Krivitskaya, N.N., Naz’mova, G.N., Ryakhovskaya S.K., and Filimonov, S.V., Mineral associations of hydrothermal plutonogenic, volcanogenic-plutonogenic, volcanogenic, telethermal gold deposits, In: Zoloto severnogo obramleniya Pacifika (Gold at the Northern Pacific Margin), Magadan: 2008, pp. 155–158.
Spiridonov, E.M., Krivitskaya, N.N., Bryzgalov, I.A., Kulikova, I.M., and Gorodetskaya, M.D., Texture of aggregates and composition of carbonates in gold-bearing veins at the volcanogenic-plutonogenic Darasun deposit, East Transbaikalia, In: Problemy rudnyh mestorozhdenii, mineralogii, petrologii i geokhimii, (Problems of Ore Deposits, Mineralogy, Petrology, and Geochemistry), Moscow: IGEM RAS, 2008b, pp. 352–355.
Spiridonov, E.M., Krivitskaya, N.N., Bryzgalov, I.A., Kulikova, I.M., and Gorodetskaya, M.D., Bi-rich aurostibite as the product of replacement of maldonite at the volcanogenic-plutonogenic Darasun deposit, East Transbaikalia, Dokl. Earth Sci., 2010, vol. 435, pp. 531–534.
Timofeevsky, D.A., Geologiya i mineralogiya Darasunskogo zolotorudnogo regiona (Geology and Mineralogy of the Darasun Gold-Bearing Region), Moscow: Nedra, 1972.
Tugovik, G.A., Flyuidno-eksplozivnye struktury i ih rudonosnost' (Fluid-Explosion Structures and their Ore Content), Moscow: Nauka, 1984.
Zenkov, D.A., Mine geology of the Darasun gold–arsenium deposit, In: Rudnichnaya Geologiya (Mine Geology), Gosgeolbzdat, 1946, pp. 112–134.
Zorin, Yu.A., Belichenko, V.G., and Rutschtein, I.G., Geodynamics of western part of the Mongolo-Okhotsky belt and the tectonic position of gold ore deposits at Transbaikalia Russ. Geol. Geophys., 1998, vol. 39, pp. 1578–1586.
Zorina, L.D., Ore-magmatic systems with latite magmatism at Transbaikalia, In: Sovremennye problemy teoreticheskoi i prikladnoi geokhimii, (Actual Problems of Theoretical and Applied Geochemistry), Novosibirsk: Nauka, 1987, pp. 93–100.
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This work was supported by the Russian Foundation for Basic Research (project no. 19-05-00490) using equipment purchased under the Development Program of Moscow State University.
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Translated by D. Voroshchuk
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Spiridonov, E.M., Krivitskaya, N.N., Brysgalov, I.A. et al. Aurostibite, Silver-Bearing Gold, and Electrum As a Part of Post-Gold Antimony Mineralization in the Darasun Deposit (Eastern Transbaikalia). Geol. Ore Deposits 65, 704–711 (2023). https://doi.org/10.1134/S1075701523070115
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DOI: https://doi.org/10.1134/S1075701523070115