B. Diachkov1, Dr.Sci. (Geol.-Min.), Prof., Academician of NAS RK,

I. Mataybaeva1, PhD,

Z. Chernenko1, Cand. Sci. (Geol.-Min.),

E. Teut1, MSc, Senior Research Fellow, Research Engineer,

E-mail: Zinchernenko@mail.ru


GEOLOGICAL POSITION AND ORE-BEARANCE OF GRANITOID BELTS IN THE GREAT ALTAI


1Serikbaev East Kazakhstan State Technical University, 19 D. Serikbaeva Str., Ust-Kamenogorsk, Kazakhstan


Redeveloping national mineral resource base of rare metals is a burning issue for East Kazakhstan. This primarily concerns tantalum, beryllium and niobium, for their being widely used in HT. Technological improvements and developments have become vital for metallogenic forecasting and study in the Republic of Kazakhstan, as there arises a need to provide a scientific basis for the replacement of national resources in general. Based on a theory of drift, this paper discusses some genetic types of gold-bearing and rare-metal deposits relative to the nature of granitoid belts, their origin and distribution in the orogenic post-collision stage of activation, their geotectonic position, etc. In the Mine Altai payable pyrite-gold-copperpolymetallic deposits originated in rift geodynamics; they are flanked by volcanic basalt-andesite-rhyolite arcs and occur in the Devonian volcanicsedimentary sequence.

True gold-ore deposits of quartz-veined and quartz-gold-sulfide-carbon types originated during the collisional geodynamics of Kazakhstan and the Mine Altai microcontinents. These bodies are genetically connected with a system of volcanic-plutonic formations and small intrusions of Middle-Upper Carboniferous gabbro, diorite, granodiorite, and plagiogranite (Bakyrchyk, Bolshevik, Suzdal, etc.). In the post-collision orogenic stage of inner-plate activation (P1-T1) there were localized large granitoid belts of normal and high alkalinity (Kalba-Narym, the Mine Altai, Akbyyik-Akzhaylyausk, etc.). They are rare-metal bearing (Ta, Nb, Be, Li, Sn, W, Mo) and rare-earth bearing (Nb-Zr-RE) specializations (mineralizations of Bakennoe, Yubileinoe, Verhnee Espe etc.). Residuum deposits of nickel-cobalt, zirconium-titanium and gold (Belohorskoe, Karaotkel, Zhanan etc.) refer to the Cimmerian cycle of continental rifting. The metallogenic specialization identified in the given geodynamics lays the foundation for further forecasting and developing new minerilazitions.

Keywords: granitoid belts, geotectonic position of granitoids, rare-earth metals, the Great Altai.


References:

1. Narseev V.A., Gostev Yu.V., Zaharov A.V., (2001). Bakyirchik (Geology, geochemistry, mineralization) Ed. V.A. Narseev [Bakyirchik (Geologiya, geohimiya, orudenenie)]. TsNIIGRI - CSRSI, Moscow, 174 p. (In Russian).

2. The Great Altai: (geology and metallogeny): Scherba G.N. et al., (1998). Vol. 1. Geological structure [Bolshoy Altay: (geologiya i metallogeniya). Kniga 1: Geologicheskoe stroenie]. Fylym, Almatyi, 304 p.; Scherba G.N. et al., (2000). Vol. 2. Metallogeny [Bolshoy Altay: (geologiya i metallogeniya). Kniga 2: Metallogeniya]. RIO HAC RK, Almaty, 400 p. (In Russian).

3. Vladimirov A.G., (2014). The role mantle and the shear deformation of lithosphere on origin granitoid [Rol mantii i sdvigovyih deformatsiy litosferyi pri formirovanii granitoidnyih batolitov]. Granityi i evolyutsiya Zemli: granityi i kontinentalnaya kora: Materialyi II Mezhdunarodnoy konferentsii – Abstracts II International conference "Granites and Earth's Evolution: granites and continental core", Novosibirsk, 48-50. (In Russian).

4. Dyachkov B.A., (2012). Genetic types of rare-matal ores of Kalba-Narym belt [Genetycheskye typy redkometalnykh mestorozhdenyi Kalb-Narymskogo poyasa]. VKHTU, Ust-Kamenogorsk - EKSTU, Ust-Kamenogorsk, 130. (In Russian).

5. Dyachkov B.A., Mayorova N.P., Scherba G.N., Abdrahmanov K.A., (1994). Granitoid and ore formations Kalba-Narym belt (Mine Altai) [Granitoidnye i rudnye formatsii Kalb-Narymskogo poyasa: (Rudnyi Altai)]. Almaty, Ғlm - Almaty: Fylym, 208 p. (In Russian).

6. Dyachkov B.A., Titov D.V., Sapargaliev E.M., (2009). Ore belt of the Great Altai and evaluation of its prospects [Rudnyie poyasa Bolshogo Altaya i otsenka ikh perspektiv]. Geolohiya rudnykh mestorozhdenyi - Geology of ore deposits, 51, 3, 222-238. (In Russian).

7. Kotler P.D., Khromykh S.V. et al., (2014). Ar-Ar isotope dating of rare metal pegmatithes of Kalba-Narym batholit (East Kazakhstan) [Ar-Ar isotopnoe datirovanye redkometalnykh pegmatitov Kalba-Narymskogo batolita)]. Granity i evolyutsiya Zemli: granityi i kontinentalnaya kora: Materialyi II Mezhdunarodnoy konferentsii - Abstracts of II International

conference "Granites and Earth's Evolution: granites and continental core", Novosibirsk, 101-103. (In Russian).

8. Uzhkenova B.S., Bekzhanova G.R., Ivanov L.B. (Ed.), (2011). Rare metals and rare earths of Kazakhstan [Redkie metally i redkie zemli Kazakhstana]. Almatyi - Almaty, 277. (In Russian).

9. Kovalenko V.I. et al., (2006). Types magmas and their irigin in history of the Earth / Bogatikov O.A., Kovalenko V.I. (Ed.). Part 2. Rare-metal magmatism: Association of rocks, composition and sources of magmas, geodynamic situation of origin [Tipy magm i ikh istochniki v istorii Zemli. Chast 2. Redkometalnyi magmatizm: assotsiatsiya porod, sostav i istochniki magm, geodinamicheskie obstanovki formirovaniya]. Moscow, YHEM RAS -IGEM RAN, 280. (In Russian).

10. Tkachev A.V., (2012). Global metallogenic cycles in Earth's history [Globalnye metallogenycheskye tsykly v istorii Zemli]. Abstract of the thesis of Doctor of Science in Geology. Moscow, 45. (In Russian).

11. Sheremet E.M., Krivdik S.G., Sedova E.V., (2014). Rare granite of Ukrainian Shield (petrology, geochemistry, genesys) [Redkometalnye granity Ukrainskogo schita (petrologiya, geokhymiya, genesis)]. Granity i evolyutsiya Zemli: granity i kontinentalnaya kora: Materialyi II Mezhdunarodnoy konferentsii - Abstracts of II International conference "Granites and Earth's Evolution: granites and continental core", Novosibirsk, 240-242. (In Russian).

12. Dyachkov B.A., Zimanovskaya N.A., Mataibaeva I.E., (2013). Rare metal deposits of the East-Kazakhstan geologic position and prognostic criteria. Open Journal of Geology, 3, 404-409.

13. Mataibaeva I.E., Dyachkov B.A., Chernenko Z.I. et al., (2014). The content of tantalum in granitoids of Kalba. Green economy is the future of hymanity: Materials of International Scientific and Practical Conference, 24, 25th of May, Ust-Kamenogorsk, V, 285-296.

14. Zagorsky V.Ye., Vladimirov A.G., Makagon V.M. et al., (2014). Large fields of spodumene pegmatites in the settings of rifting and postcollisional shear-pull-apart dislocations of continental lithosphere. Russiann Geology and Geophsics, 55, 285-296.