Types of rare metal deposits in East Kazakhstan and their appraisal

D’yachkov, B.A.; MATAIBAEVA, Indira; Фролова, О. В.; Gavrilenko, O. D.

doi:10.17580/gzh.2017.08.08

Cited by 6 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kalba-Narym granitoid belt (KNB) is the main rare metal structure of the Altai accretioncollisional system and is considered in the structure of the Great Altai [2,3]. It is located between West Kalbin and Irtysh tectonic zones and is limited by deep faults -Kalba-Narym (in the north-east) and Terektin (in the south-west).…”

Section: Geological Structurementioning

confidence: 99%

“…The centers of magma formation originated, judging by the composition of the granite smelting, in the metagranite layer or on its boundary with the metadiorite. Zones of transit heat-mass flows penetrated from the lower parts of the Earth crust and the upper mantle along the system of deep faults [3]. We also know the data of V.L.…”

Section: Geological Structurementioning

confidence: 99%

“…The model of formation of rare metal pegmatite deposits is determined by their genetic connection with the granites of Kalba complex Р 1 and the spatial distribution of bodies mainly in medium-coarsegrained biotite granites of the I phase and their exocontacts [3,6]. The processes of pegmatite formation probably occurred in open or half-closed magmatic system with the rhythmically pulsating supply of ore-bearing distillates (Н 2 О, F, B, O, Ta, Nb, Be and others) from the intro-chambered center of granite massifs.…”

Section: Geological Structurementioning

confidence: 99%

“…Kalba-Narym tectonic zone is the main rare-metal-bearing structure in the territory of the Great Altai. Many deposits and ore occurrences of rare metals of various genetic types are concentrated there [1,3]. Among them, there are deposits of rare metal pegmatites relating to the leading geological-industrial type, which in the past years were developed by Belogorsk ore mining and processing enterprise, but now they are suspended.…”

mentioning

confidence: 99%

“…The actual task is to resume prognostic-metallogenic and geological explorations for rare metals in order to assess new promising areas and sites, as well as a more detailed study of known ore-bearing structures and objects. According to these facts, regional and local forecasting and search criteria have been developed, among which the most important are geological-petrological and mineralogical-geochemical factors and prerequisites [3,7]. …”

mentioning

confidence: 99%

See 4 more Smart Citations

New data on the substantial composition of Kalba rare metal deposits

Ойцева

D’yachkov

Владимиров

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

Abstract. Geotectonic position, features of the geological structure and rare metal specialization of the Kalba-Narym granitoid belt formed in the Hercynian cycle in the postcollision (orogenic) geodynamic situation are considered. A geological-genetic model for the formation of the leading type of rare-metal pegmatite deposits (Ta, Nb, Be, Li, etc.) is presented. They are spatially and genetically related mainly to the granitoids of the 1st phase of the Kalba complex, P1 (Bakennoye, Jubilee, Belaya Gora, etc.). The rhythmically pulsating orientation of the process of pegmatite formation with the introduction of ore-bearing fluids (H2O, F, B, Cl, Ta, Nb, Be, etc.) is emphasized from the intracamera focus of a semi-closed magmatic system. The preferred location of ore pegmatite veins in granitoids of moderate basicity occupying an intermediate position in the petrochemical composition between normal granites and granodiorites geochemically specialized in Li, Rb, Cs, Sn, Nb, Ta. The leading ore-controlling role of the latitudinal deep faults of the ancient site in the distribution of raremetal ore fields and deposits (Ognevsk-Bakennoye, Asubulak, Belogorsk, etc.) is determined. There is a zonal structure of pegmatite veins, a gradual development of mineral complexes from the graphic and oligoclase-microcline (non-ore) to microcline-albite and color albitespodumene (ore). The mineralization of pegmatite veins is determined by the degree of intensity of the manifestation in them of metasomatic processes (microclinization, alibitization, greisenization, spodumenization, tourmalinization, etc.) and the identification of the main ore minerals (tantalite-columbite, cassiterite, spodumene and beryl). The diversity of the material composition of rare-metal pegmatites containing many unique minerals (cleavelandite, lepidolite, ambligonite, color tourmaline, spodumene, pollucite, etc.) is reflected, which brings them closer to the pegmatite deposits of foreign countries (Koktogai, Bernik Lake, etc.). New results of the investigation of the material composition of ore-bearing granites, pegmatites and typomorphic minerals using electron microscopy reflecting the distribution of rare-earth, rare-metal, chalcophile and other elements in them are presented. Indicators of rare metal ore formation are rock-forming minerals of granites (quartz, microcline, biotite, muscovite), ore and associated minerals (cleavelandite, lepidolite, cassiterite, etc.). The most informative minerals include mica (muscovite, giltbertite, lepidolite), colored tourmalines and beryls of different composition and color. Identified typomorphic minerals and geochemical elements- indicators of rare metal pegmatite formation are considered as a leading search criterion in assessing the prospects of the territory of East Kazakhstan. IntroductionAt present, Kazakhstan faces the problem of recreating its own mineral and raw materials base of rare metals and, first of all, tantalum, niobium, beryllium, lithium, rare earthsmetals, which are widely used in the sph...

show abstract

Section: Geological Structurementioning

confidence: 99%

Section: Geological Structurementioning

confidence: 99%

Section: Geological Structurementioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

New data on the substantial composition of Kalba rare metal deposits

Ойцева

D’yachkov

Владимиров

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

Specific Features of Geotectonic Development and Ore Potential in Southern Altai (Eastern Kazakhstan)

et al. 2021

View full text Add to dashboard Cite

East Kazakhstan Rare Earths Deposits Formation

D’yachkov

2021

AMMS

View full text Add to dashboard Cite

The main rare-metal structure of the region is the Kalba-Narym granitoid belt of the northwestern direction, formed in the Hercynian cycle in a post collisional (orogenic) geodynamic setting. The spatialgenetic relationship of the leading geological-industrial type of deposits of rare-metal pegmatites (Ta, Nb, Be, Li, Cs, Sn) with medium-coarse-grained biotite granites of the 1 st phase of the Kalba complex P1 is emphasized. The revealed laws of formation and spatial accommodation of deposits of rare metals in Kalba Narym zone and other geological structures are the important criterion for forecasting and searching the new ores objects on East Kazakhstan territory.

show abstract

Types of rare metal deposits in East Kazakhstan and their appraisal

Cited by 6 publications

References 0 publications

New data on the substantial composition of Kalba rare metal deposits

New data on the substantial composition of Kalba rare metal deposits

Specific Features of Geotectonic Development and Ore Potential in Southern Altai (Eastern Kazakhstan)

East Kazakhstan Rare Earths Deposits Formation

Contact Info

Product

Resources

About