Abstract
The present-day contribution of coastal-marine placers into the bulk gold production is insignificant. As usual, only gold of coarse- and medium-grained classes is recovered while the fine-grained and dispersed gold are disposed into tailings. During the sedimentation, such a floating gold is removed far from the wave-surf zone. Despite the common belief about poor prospects of the Black Sea shelf for modern gold placers, we have proved the expediency to study the distribution of floating microscopic gold in Holocene marine sediments and carried out the respective works. Using the special concentrating methods, we enabled to detect the gold in most of the 830 samples collected. Geomorphological, lithological, hydrodynamic, and other factors controlling the gold potential were determined. In some cases, the gold content exceeds the minimal economic grade in continental placers. The prospective sites for further investigation were outlined. It was established that the polygenic microscopic gold can be divided into at least clastic, authigenic, and clastic-authigenic types. According to our data, the alluvial, lagoonal-marine, liman, and other sediments at the adjacent land also contain substantial amounts of microscopic gold. The pre10987nary study of oceanic bottom sediments near the Antarctic Peninsula and within the Argentine Basin proved the possibility of microscopic gold to accumulate under various facies conditions. The microscopic gold, mainly of clastic type, was detected here in 82% of samples. The obtained results testify to the global-scale deposition of floating microscopic gold in sedimentation basins of various age and may serve as a basis for the further comprehensive tackling of the problem in different regions.
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References
Geologiya shel’fa USSR. Tverdye poleznye iskopaemye (Geology of the Soviet Union Shelf: Solid Minerals), Shnyukov, E.F., Ed., Kiev: Nauk. Dumka, 1983.
Ivanov, V.D., Concentration of the Slime-Type and Fine-Grained Ores and Sands on a Screw Sluice,Gornyi Zh., 1962, no. 5, pp. 60–63.
Ivanov, V.D.,K voprosu ekspluatatsii malogabaritnykh vintovykh apparatovpri shlikhovom oprobovanii peskov rossypnykh mestorozhdenii (The Problem of Exploitation of Smallscale Spiral Apparatus in the Heavy Concentrate Sampling of Sands), Irkutsk: IRGIredmet, 1990.
Kardash, V.T., Gravitational Differentiation of Minerals in Forming Alluvial Placers,Sostav, proiskhozhdenie i razmeshchenie osadochnykh porod i rud (The Composition, Origin, and Distribution of Sedimentary Rocks and Ores), Kiev: Naukova Dumka, 1981, pp. 210–217.
Koval’chuk, M.S., Forms of Transportation and Accumulation of Gold in the Lower Cretaceous Continental Sediments on the Northern Slope of the Central Ukrainian Shield,Geol. Zh., 1994, no. 3, pp. 107–111.
Lebed, N.I., Reznik, V.P., Mudrov, I.A.,et al., A New Type of Placer Mineralization on the Black Sea Shelf,Geol. Zh., 1994, no. 3, pp. 121–126.
Lunev, B.S., The Prospecting Procedure for Fine-Grained Minerals,Allyuvii, 1976, pp. 71–81.
Lunev, B.S. and Osovetskii, B.M., A Procedure of the Stageby-Stage Study of Fine-Grained Gold,Kolyma, 1979, no. 11, pp. 36–37.
Lunev, B.S., Osovetskii, B.M., and Tyurin, B.M., Study of Compulsory Differentiation of Sediments of Gold Placer with the Help of Spiral Sluice,Allyuvii, 1968, issue 10, no. 170, pp. 43–47.
Pashkova, E.A., Danilova, E.A., Lyutsarev, S.V., and Levitan, M.A., Gold and Organic Matter in the Holocene Sediments of the Bering Sea,Litol. Polezn. Iskop., 1988, no. 5, pp. 101–110.
Polkanov, Yu.A. and Yalovenko, I.P., Findings of Gold in the Littoral and Liman Sands on the Northwestern Shore of the Black Sea,Dokl. Akad. Nauk SSSR, 1970, vol. 191, pp. 905–908.
Reznik, V.P., Pre10987nary Data on the Geological Setting of theAkademik Vernadsky Station Region,Geologiya morei i okeanov (Tezisy dokladov XII mezhdunarodnoi shkoly morskoi geologii ) [Geology of Seas and Oceans (Abstracts of Papers, XII International School of Marine Geology)], Moscow, 1997, vol. 2, pp. 100–101.
Reznik, V.P. and Zrelov, A.V., The Morphology and Genesis of Fine-Grained Gold on Some Parts of the Northwestern Shelf of the Black Sea,Geologiya morei i okeanov (Tezisy dokladov XII mezhdunarodnoi shkoly morskoi geologii ) [Geology of Seas and Oceans (Abstracts of Papers, XII International School of Marine Geology)], Moscow, 1997, vol. 1, pp. 141–142.
Reznik, V.P., Mudrov, I.A., and Lebed, N.I., Prospective Findings of Placer Gold on the Northwestern Shelf of the Black Sea,Geologiya morei i okeanov (Tezisy dokladov XI mezhdunarodnoi shkoly morskoi geologii ) [Geology of Seas and Oceans (Abstracts of Papers, XI International School of Marine Geology)], Moscow, 1994, vol. 2, p. 240.
Reznik, V.P., Mudrov, I.A., Lebed, N.I., and Glavatskii, V.I., New Data on the Prospect of the Black Sea Shelf for Gold Placers,Issledovaniya shel’fovoi zony Azovo-Chernomorskogo basseina (Studies of the Shelf Zone of the Azov and Black Sea Basin), Sevastopol: MGINANU, 1995, pp. 132–140.
Rossypnye mestorozhdeniya Rossii i drugikh stran SNG (Placers of Russia and Other Countries of CIS), Laverov, N.P. and Patyk-Kara, N.G., Eds., Moscow: Nauchnyi Mir, 1997, p. 479.
Shpunt, B.R. and Shamshina, Z.A., The Distribution Pattern of Fine-Dispersed Gold in Placers of the Siberian Platform,Dal’nost’ perenosa zolota pri formirovanii rossypei (Range of the Gold Transportation during Placer Formation), Yakutsk:Inst. Geologii Yakutsk. Fil. Sib. Otd. Akad. Nauk SSSR, 1977.
Sidenko, O.G., Polkanov, Yu.A., and Yalovenko, I.P., Diamonds and the Titanium Minerals in Littoral Sediments of the Northern Part of the Black and Azov Seas,Litologogeokhimicheskie usloviya formirovaniya donnykh otlozhenii (Lithologeochemical Conditions of the Bottom Sediment Formation), Kiev: Naukova Dumka, 1979, pp. 169–172.
Tauson, L.V., Lomonosov, I.S., Glyuk, D.S.,et al., Possibilities of the Formation of Hydrogenic Gold Deposits,Dokl. Akad. Nauk SSSR, 1989, vol. 305, no. 4, pp. 960–964.
Tsar’kova, A.A., Biryukova, M.V., Lazareva, E.V., and Pertsov, N.V., Procedure for Fractionating Marine Sediments of the Shelf Zone for the Fine-Dispersed Gold Detection,Geokhimiya, 1993, no. 6, pp. 879–881.
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Reznik, V.P., Fedoronchuk, N.A. Microscopic gold in marine and oceanic sediments. Lithol Miner Resour 35, 311–318 (2000). https://doi.org/10.1007/BF02782687
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DOI: https://doi.org/10.1007/BF02782687