ONGONITE DIKES OF EASTERN KAZAKHSTAN AND THE SPECIFICITY OF THEIR ORE CONTENT
DOI:
https://doi.org/10.17721/1728-2713.88.09Keywords:
dikes, ongonites, age, composition, rare metals, forecasting, East Kazakhstan, Bolshoi Altai (BA)Abstract
Goal of the research is to study regularities, age, material composition and ore content of ongonite-like dike belts of East Kazakhstan. Methods are field works carried out within Kalba-Narym shear zone where dike belts are developed. Geological and structural position of dikes and their age ratio to granitoids of Kalba-Narym pluton and ore formations have been determined. The samples were selected from varieties of ongonite dikes. Microprobe analyses have been carried out on a scanning election microscope JSM 6390 with an energy-dispersive add-on device, besides, mass-spectrometer researches have been conducted on ICP-MS. The purpose of these is to identify mineralogical and geochemical specialization of dike rocks. Findings. The following has been found due to the conducted researches and comparison analysis with other regions: Two groups of heterochronous dike belts were formed during Hercynian Period in geological structures of East Kazakhstan comprised in general system of Central Asian belt. The dike belts belong to gabbro- diorite – granodiorite – plagiogranite series, and the groups are of pre-batholite (С2-3–С3) and post-batholite (Р2) types. Late postbatholite dikes of quartz porphyrites and quartz albitophyres of Mirolyubovsky complex (Р2) refer to ongonites. Probably, they are derivatives of deep residual magma chambers. In the course of the work, ongonites geochemical differentiation into rare metals(Ti, Nb, Li, Sn, W and other) and rare alkalies has been established. The researches have shown that ongonite-like dikes are of post-mineral nature that is proved by their position in relation to ore bodies and by other factors. Besides, no rare metal ore of practical significance has been found within these dikes. Scientific novelty and practical application. It can be assumed that greater development of gabbro- diorite – granodiorite – plagiogranite dikes within the known and supposed ore fields, as well as specialization of rocks that dikes are composed of, enable to consider them as prospecting indicators of concealed rare metal objects. To study dike formations of this kind is very important for reconstruction of geodynamic environments, for development of correlation patterns of granitoid magmatism and for studying ore formation processes. By all means, all this can be used in geologic mapping practice, especially on the closed territories.
References
Annikova, I.Iu., Vladimirov, A.G., Gavriushkina, O.A., Smirnov, S.Z. (2016). Geologiia i mineralogiia Alakhinskogo mestorozhdeniia spodumenovykh granit-porfirov (Gornyi Altai). Geologiia rudnykh mestorozhdenii, 58, 5, 451- 475. [in Russian]
Antipin, V.S., Andreeva, I. A., Kovalenko, V. I., Kuznetsov, V. A. (2009). Geokhimicheskie osobennosti ongonitov Ary-Bulakskogo massiva, Vostochnoe Zabaikal'e. Petrologiia, 17, 6, 601-612. [in Russian]
Beskin, S.M., Marin, Iu.B. (2017). Klassifikatsiia pegmatitonosnykh granitovykh sistem. Mater. 3 mezhdunar. geol. konf. "Granity i evoliutsiia Zemli: mantiia i kora v granitoobrazovanii". 28-31 august. IGG UrO RAN, Ekaterinburg, Russia, 40-42. [in Russian]
Bogdanova, K.G. (1960). Petrologiia daikovykh melanokratovykh porod Vostochnoi Kalby. Mat-ly VSEGEI. Nov. ser., 33, 131-140. [in Russian]
Dergachev, V.B. (1989). Dva tipa ongonitov i el'vanov. Doklady AN SSSR, 306, 5, 1216-1219. [in Russian]
Dyachkov, B., Mizernaya, M., Kusmina, O., Mizerny, A., Oitseva, T. (2017). Main types of gold deposits of the eastern Kazakhstan. 17th International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management, SGEM, Albena, Bulgaria, 17, 11, 299-306.
Han, C., Xiao, W., Zhao, G., Su, B., Sakyi, P.A., Ao, S., Wan, B., Zhang, J., Zhang, Z., Wang, Z. (2014). Mid-Late Paleozoic metallogenesis and evolution of the Chinese Altai and East Junggai Oiogenic Belt, NW China, Central Asia. Journal of Geosciences, 59, 255-274.
Homichev, V.L. (2010). Plutony – dajki – orudenenie. Novosibirsk: SNIIGGiMS. [in Russian]
Hromyh, S.V., Kotler, P.D., Gurova, A.V., Semenova, D.V. (2018). Postorogennye dajkovye pojasa Altajskoj akkrecionno-kollizionnoj sistemy: geologicheskaja pozicija, sostav i vozrast. Korreljacija altaid i uralid: glubinnoe stroenie litosfery, stratigrafija, magmatizm, metamorfizm, geodinamika i metallogenija. 2-6 april, Novosibirsk, Russia, 161-162. [in Russian]
Jarmoljuk, V.V., Lyhin, D.A., Kozlovskij, A.M. et al. (2016). Sostav, istochniki i mehanizmy formirovanija redkometall'nyh granitoidov pozdnepaleozojskoj Vostochno-Sajanskoj zony shhelochnogo magmatizma (na primere massiva Ulan-Tologaj). Petrologija, 24, 5, 515-536.
Khromykh, S.V., Tsygankov, A.A., Kotler, P.D. et al. (2016). Late Paleozoic granitoids magmatism of Eastern Kazakhstan and Westwrn Transbaikalia: Plume model test. Russian Geology and Geophysics, 57, 5, 773-789. Elsevier: ISSN 1068-7971. EISSN 1878-030X.
Kuibida, M.L., Kruk, N.N., Vladimirov, A.G., Polianskii, N.V., Nikolaeva, I.V. (2009). U-Pb-izotopnyi vozrast, sostav i istochniki plagiogranitov Kalbinskogo khrebta (Vostochnyi Kazakhstan). Doklady RAN, 424, 1, 84-88. [in Russian]
Mizernaya, M., Dyackov, B., Miroshnikova, A., Mizerny, A., Orazbekova, G. (2017). Large sulfide-quartz stockwork gold deposits of Kazakhstan - formation conditions and predicting criteria. Visnyk of Taras Shevchenko National University of Kyiv. Geology, 3, 82-88.
Mizerny, A.I., Miroshnikova, A.P., Mizernaya, M., Diachkov, B.O. (2017). Geological and structural features, magmatism and mineralization of Sekysivske and Vasylkivske Stockwork gold deposits (Kazakhstan). Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 3, 5-12.
Potseluev, A.A., Rikhvanov, L.P., Vladimirov, A.G., Annikova, I.Iu. et al. (2008). Kalgutinskoe redkometall'noe mestorozhdenie (Gornyi Altai): magmatizm i rudogenez. Tomsk: SST. [in Russian]
Pushko, E.P. et al. (1978). O nakhodke litii-ftoristykh granit-porfirov (analogov ongonitov) v Kalba-Narymskom rudnom poiase. Geologiia, geokhimiia i mineralogiia mestorozhdenii redkikh elementov, 5, 3-11. [in Russian]
Shherba, G.N., Bespaev, H.A., Mysnik, A.M. et al. (2000). Bol'shoj Altaj (geologija i metallogenija). Kn. 2. Metallogenija. Almaty: RIO VAK RK. [in Russian]
Sokolova, E.N., Smirnov, S.Z., Khromykh, S.V. (2016). Usloviia kristallizatsii, sostav i istochniki redkometall'nykh magm pri formirovanii ongonitov Kalba-Narymskoi zony Vostochnogo Kazakhstana. Petrologiia, 24, 2, 168-193. [in Russian]
Vladimirov, A.G., Kruk, N.N., Khromykh, S.V. et al. (2008). Permskii magmatizm i deformatsii litosfery Altaia kak sledstvie termicheskikh protsessov v kore i mantii. Geologiia i geofizika, 49, 7, 621-636. [in Russian]
Downloads
Published
Issue
Section
License
Copyright (c) 2023 Visnyk of Taras Shevchenko National University of Kyiv. Geology
This work is licensed under a Creative Commons Attribution 4.0 International License.
Read the policy here: https://geology.bulletin.knu.ua/licensing
