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GEOLOGY OF PERMIAN GRANITES OF THE KARATAU-NARYN ZONE AND THEIR PROSPECTIVE FOR RARE METALS (SOUTH KAZAKHSTAN)
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Kanat Bulegenov; Sayat Rais; Daulet Muratkhanov
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10.5593/sgem2023/1.1
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1314-2704
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English
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23
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1
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• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA |
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The studied intrusive massif is an ellipse elongated in the sublatitudinal direction. Only the eastern part, 2.2x4 km in size, is exposed on the earth surface. Under the sediments, the intrusion was traced by boreholes and aeromagnetic survey. The intrusion is a sheetlike body of a fractured nature, inclined to the southwest. A zone of marmorized limestones, as well as tremolite and wolastonite hornfelses, formed at the contact with the intrusion. Among the intrusive rocks that make up the massif, three successive igneous phases are distinguished. The first phase is represented by pyroxenites, biotite pyroxenites, alaskites, hornblendites, pyroxene-hornblende shonkinites and pseudoleucite facies, in which mesocratic and melanocratic syenites are distinguished. The rocks of the second phase are pyroxene-biotite and hornblend-biotite-pyroxene shonkinites, monzonites, syenites, which have gradual transitions. The rocks of the third intrusive phase are represented by biotite-pyroxene-hornblend syenites. A characteristic feature of syenites is the abundance of xenoliths of rocks of the first and second phases and marbles. The main rock-forming minerals of these rocks are orthoclase, hornblend, diopside-augite, minor ones: biotite, acidic or intermediate plagioclase, nepheline. The rocks of the intrusion are enriched in zinc, yttrium, copper, tin, molybdenum, vanadium, and lead. In addition, they contain increased amounts of cobalt and silver. Intrusions have been studied and their prospects for rare metals and rare earth elements have been evaluated.
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conference
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
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23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 2023
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
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49-56
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03 - 09 July, 2023
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website
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8996
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igneous rocks massif, granites, intrusive phases, weathering crust, rare metals, rare earths
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