Prospects for the exploration of gold deposits in the Golovanevsk suture zone of the Ukrainian shield
DOI:
https://doi.org/10.24028/gzh.0203-3100.v41i5.2019.183632Keywords:
, the Ukrainian shield, the Golovaniv suture zone, gold, basites, hyperbasites, faults, skarns, metasomatiteAbstract
Prospects for the search for gold deposits within the limits of the Lypovenky-Sukhiy Tashlyk area of the Golovanivsk suture zone (GSZ) of the Ukrainian Shield (USh) have been considered, where in the 80―90s of the last century North Capitanian gold mineralization with indicative reserves of 27 tons of Au was discovered and drilling of more than 3000 wells with hydrotransportation of the core (CHC) in the crust of weathering of the Precambrian basement revealed signs of about 30 new massifs of rocks of hyperbasite composition. Drilling was directed at the search for deposits of silicate nickel, so was not paid attention enough to the presence of hypergene gold in more than half wells was not given enough. In this paper, the authors turned to this question, because the search for gold deposits within the USh is now in time. The work is based on the analysis and generalization of geological, archival laboratory data and results of detailed geophysical works at a scale of 1:10 000. The conclusion of previous studies confirmed that one of the important search criteria for gold mineralization is the presence of metasomatic, dynamometamorphic and skarn transformations in endocontact zones of massifs of basites and ultra-basites, as well as in the zones of intersection of such massifs with faults. Metasomatites and skarns have the largest weathering crust among other types of rocks, and the stem capacity of abnormal gold-bearing intervals may exceed 10 m. The largest number of ”gold-bearing” wells has just been recorded in the skarns, and the average content of Au in the weathering crusts of the main types of rocks in the research area is the largest one in the skarns and ultra-basites. The analysis of the maps of abnormal magnetic and gravitational fields allowed, in addition to the known here zones of faults in the northwest, to distinguish two meridional zones of shearing that coincide with the separate Lypovenky and Sukhiy Tashlyk areas of development of gold mineralization. Both areas of shearings consist of meridional and latitudinal echelon shears, many of which are bordered with bodies of basites and hyperbasites and accompanied by chains of gold anomalies. Shearing zones belong to the Subot-Moshorino phase of faulting (1.8―1.73 billion years ago), with which the active processes of ore formation of rare and noble metals are connected within the USh. Recommendations for further geological and geophysical investigations within the limits of Lypovenky―Sukhiy Tashlyk area of the GSZ have been given.
References
Alekhin, V. I., & Gintov, O. B. (2004). Kinematic features, phases of development and metallogeny of the system of latitudinal zones of faults of USh. Geofizicheskiy zhurnal, 26(6), 83―101 (in Russian).
Geological map of crystal base of scale 1:200000. (1990). Sheet M-36-ХХХІ (Pervomaysk). Kiev: The State Enterprise “Ukrainian Geological Company” (in Russian).
Gintov, O. B., Entin, V. A., Mychak, S. V., Pavlyuk, V. N., & Zyultsle, V. V. (2016). Structural-petrophysical and tectonophysical base of geological map of crystalline basement of the central part of Golovanevsk suture zone of the Ukrainian Shield. Geofizicheskiy zhurnal, 38(3), 3―28. https://doi.org/10.24028/gzh.0203-3100.v38i3.2016.107777 (in Russian).
Gintov, O. B. (2014). Scheme of periodization of faulting stages in the Earth's crust of the Ukrainian Shield — new data and consequences. Geofizicheskiy zhurnal, 36(1), 3―18. https://doi.org/10.24028/gzh.0203-3100.v36i1.2014.116145 (in Russian).
Duplyak, M.N. (1988). Searches for nickel ores in the linear weathering crust (Middle Pobuzhie). Work Report 1985―1988 178 p. (in Russian).
Report on deep geological mapping at a scale of 1:50,000 with a general search of the territory of sheets M-36-122-B, M-36-134-A, B for 1991―2002 Geological structure and mineral resources between the rivers of the Southern Bug and Yatran. Kyev (in Ukrainian).
Entin, V. A. Guskov, S. I., Orlyuk, M. I., Gintov, O. B., & Osmak, R. V. (2015). Map of absolute gravity fields values in Ukraine and some aspects of its possible interpretation. Geofizicheskiy zhurnal, 37(1), 53―56. https://doi.org/10.24028/gzh.0203-3100.v37i1.2015.111323 (in Russian).
Kornienko, P.K. (1994). Searches for silicate nickel in areal weathering crusts in the Pobuzhsky ore district. Report of the ore batch for the works of 1989―1994, 149 p. (in Russian).
Nechaev, S. V., Gintov, O. B., & Mychak, S. V. (2019). On a link of rare earth-rare metal and gold-ore mineralization with fault-block tectonics of the Ukrainian Shield. 1. Geofizicheskiy zhurnal, 41(1), 3—32. https://doi.org/10.24028/gzh.0203-3100.v41i1.2019.158861 (in Russian).
Nechaev, S. V., Gintov, O. B., & Mychak, S. V. (2019). On a link of rare earth-rare metal and gold-ore mineralization with fault-block tectonics of the Ukrainian Shield. 2. Geofizicheskiy zhurnal, 41(2), 58—83. https://doi.org/10.24028/gzh.0203-3100.v41i2.2019.164450 (in Russian).
Pavlyuk, V. M., Bobrov, O. B., Vysotskyy, B. L., Dovgan, R. M., Zhovynskyy, E. Ya., Kostenko, M. M., Lykov, L. I., & Tsymbal, S. М. (2008). Report on the theme “Geology, petrology, geochemistry, age and ore bearing of the mafite-ultramaphite associations of the western part of the Ush”. Books 1―6. Kiev: Fund of State Enterprise “Ukrainian Geological Company”, 683 p. (in Ukrainian).
Pavlyuk, O.V. (2010). Native copper and gold in mafitiv weathering crusts and sedimentary rocks of the southwestern part of the Ukrainian shield: Candidate’s thesis. Kiev, 2010. 199 p. (in Ukrainian).
Stepanyuk, L.M., Bibikiva, E.V., Klaessen, S., Ponomarenko, A.N., Dovbush, T.I., & Fedotova, A.A. (2010). To the question of age limits for the formation of the Koshar-Alexander Formation of the Bug series of the Pozhuzhye: Abstracts of the International Scientific and Practical Conference “Stratigraphy, Geochronology and Correlation of Lower Precambrian Rock Formations of the East European Platform Foundation”. Kiev, UkrNIGRI, 252 p. (in Russian).
Semka, V.A., Bondarenko, S.M., Pavlyuk, V.M., & Kornienko, P.K. (2006). Gold-bearing skarns of the Kapitanovsky ore field (Dniester-Bug district of the Ukrainian shield). Mineralogicheskiy zhurnal, 28(2), 94―97 (in Ukrainian).
Scherbak, N. P., Artemenko, G. V., Lesnaya, I. M., Ponomarenko, A. N. (2005). Geochronology of the Early Precambrian of the Ukrainian Shield. Archaea. Kiev: Naukova Dumka, 244 p. (inRussian).
Scherbak, N. P., Artemenko, G. V., Lesnaya, I. M., Ponomarenko, A. N., & Shumlyansky, L. V. (2008). Geochronology of the Early Precambrian of the Ukrainian Shield. Proterozoic. Kiev: Naukova Dumka, 240 p. (in Russian).
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