Klepko V. L., Konovalov V. E. – The Ural State Mining University, Ekaterinburg, the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
The article is dedicated to Nikolai Georgievich Kell’, the distinguished scholar, the founder of important sections of geodesy (the creation of coordinate foundation for the performance of surveying and photogrammetry), the outstanding organizer of educational process of higher education in the Urals at the Ural Mining Institute, where he founded the Department of Geodesy in 1917, and from 1919 to 1921 was a rector, and in Petrograd (Leningrad), where he led the Department of Geodesy from 1922 to 1953.

Key words: the Ural Mining Institute; the Department of Geodesy; outstanding scholar-surveyor; Kamchatka expedition; photogrammetry.

REFERENCES
1. Filatov V. V. Byt' po semu: ocherki po istorii Ural'skogo gosudarstvennogo gornogo universiteta (1914–2014).
(1720–1920) [So it be. An outline of the history of the Ural State Mining University (1914–2014). (1720–1920)].
Ekaterinburg, UrSMU Publ., 2014. 684 p.
2. Belolikov A. N. [Nikolai Georgievich Kell']. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal – News of the
Higher Institutions. Mining Journal, 1985, no. 12, pp. 1–5. (In Russ.)
3. Veikhman V. [The Sumner line]. Ural'skii sledopyt – Ural Pathfinder, 2002, no. 7, pp. 4–7. (In Russ.)
4. Kell' N. G. Izbrannye trudy [Selected works]. Moscow, Nedra Publ., 1964. 311 p.
5. Kell' N. G. Fotografiia i fotogrammetriia [Photography and photogrammetry]. Leningrad, Moscow, ONTI Publ.,
1937. 355 p.
6. Aerofotos"emka – metod izucheniia prirodnoi sredy: sb. statei. Otv. red. B. N. Mozhaev [Collection of articles “Aerial
photography – the method of studying natural environment”. Edited by B. N. Mozhaev]. Leningrad, Nauka Publ., 1973.
190 p.
7. Kell' N. G. Graficheskii metod v deistviiakh s pogreshnostiami i polozheniiami [Graphic methods when dealing with
faults and locations]. Moscow, AS USSR Publ., 1948. 236 p.
8. Kell' N. G. Vysshaia geodeziia i geodezicheskie raboty [Higher geodesy and geodetic survey]. Leningrad, Moscow,
Novosib. gos. gornoe izd-vo Publ., Pt. 1, 1932. 483 p., Pt. II, 1933. 507 p.

Alikulov Sh. Sh. – Navoiy State Mining Institute, Navoiy, the Republic of Uzbekistan. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Data analysis of mathematical modeling of uranium underground leaching solutions filtration from ore with low permeability
makes it possible to detect unworkable zones in the processed ore-bearing horizon, calculate different variants of
processing and find the optimum one. On the basis of hydrodynamic schemes of ore-bearing horizon development with
working solutions it is possible to find the main parameters of solutions motion along the tubes of current. Placing the
equations of kinetics on the motion of solutions along the tubes of current, i.e. reducing the given system to onedimensional motion, it is possible to get forecast model of commercial component concentration change in extraction
solutions. Depending on the stated goal, the problems can be solved as well as in a plan and in the section of production
horizon. Filtration modeling is typically carried out in 3D MAX program with the help of devices which have the principle
of electrohydrodynamic analogy in the foundation. When constructing solutions flow net for test fields of underground
leaching, the determination of fluid heads for every point is fulfilled in accordance with the chosen scale.
Key words: uranium leaching; kinetics; filtration coefficient; modeling; uranium; development system; 3D MAX program.
REFERENCES
1. Grabovnikov V. A. Geotekhnologicheskie raschety i issledovaniia pri razvedke mestorozhdenii metallov dlia
podzemnogo vyshchelachivaniia [Geotechnological calculations and investigations when exploring ore deposits for
underground leaching]. Moscow, OTsNTI VIEMS Publ., 1978. 119 p.
2. Krichevets G. N. Matematicheskie modeli i programmy dlia gidrogeologicheskikh i geotekhnologicheskikh raschetov
[Mathematical models and programs for hydrogeological and geotechnological calculations]. Moscow, MGRI Publ.,
1987. 145 p.
3. Kalabin A. I. Dobycha poleznykh iskopaemykh podzemnykh vyshchelachivaniem i drugimi geotekhnologicheskimi
metodami [Mineral production with the help of underground leaching and other geotechnological methods]. Moscow,
Atomizdat Publ., 1981. 357 p.

Kurlaev E. A. – Institute of History and Archaeology, UB RAS, Ekaterinburg, the Russian Federation.
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Russian chronicles repeatedly refer to the "silver zakamskoye". Historians and archaeologists consider that it has been
referred to the silver utensil of eastern manufacture; such articles were regularly found at the territory of the Urals and
Siberia. At the same time the precious metals in the Urals have been searched for throughout the centuries in the Urals
and surrounding areas; the first references in the Russian chronicles are connected to the short story about the stone
belt (“Kamennyi Poias”). The first noted mining of nonferrous and precious metals on industrial scale in Russia began in
1492 on the river Tsilma. In the author’s opinion, "silver zakamskoye" is another deposit of argent copper in particular,
situated in the region of Severouralsk town. It was exploited in ancient times and in the medieval period, it used to be a
bone of contention, but by the beginning of the Russian colonization it had been depleted and deserted. In the 17th
century it was examined by the exploration geologists, and in the age of industrialization of the region in the 18th century
silver content in copper ore was recognized disadvantageous for extraction, nevertheless, the content of silver in copper
ore was proved. Archaeological and historical investigations make it possible to consider the content of silver in the
articles made of copper and copper in silver articles from the different point of view; it indicates the fact that these articles
could be produced from the local raw material.
Key words: the Urals; the history of mining; the discovery of silver; "silver zakamskoye".
106 «Известия вузов. Горный журнал», № 5, 2017 ISSN 0536-1028
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1. Ponomarev A., Turova E. Serebrianyi sled [Silver trace]. Viatka, 2006, pp. 11–12.
2. Kurlaev E. A. [Search for ore in Pustozersky district and in the Polar Urals up to the beginning of the 18th century].
Ural'skii istoricheskii vestnik – Ural Historian Journal, 2006, no. 13, pp. 273–282. (In Russ.)
3. Polnoe sobranie russkikh letopisei [The сomplete сollection of Russian chronicles]. Vol. 8. Moscow, 2001, 223 p.
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pp. 505–506. (In Russ.)
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obshchestva – The News of the Imperial Russian Geographical Society, 1897, vol. 33, pp. 53–66. (In Russ.)
6. Chupin N. K. [Regarding the origin and the development of mining in Bogoslovsky Urals]. Gornyi zhurnal – Mining
Journal, 1873, no. 1–6. (In Russ.)

Volkov P. S. – The Ural State Mining University, Ekaterinburg, the Russian Federation. Е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Random distribution of precious metals in the bulk of the reduced sample under its preparation for the analysis leads to
some divergence in the results of parallel analyses. The addition of the operation of concentration into the sample
preparation scheme, separate analysis of concentrate and tailings, and the calculation of the mass fraction of precious
metals with balance equation gives satisfactory convergence under the parallel analysis of samples containing precious
metals. To check the given fact the calculation of theoretical error of reduction has been fulfilled, the experiment over
the reduction of a sample of artificial mixture of quartz with sample weight getting has been fulfilled, mass fraction of lead
in sample weight has been determined. Lead panning and heavy fraction weighting are used as the method of analysis.
The acquired data make it possible to speak about convergence of theoretically calculated and experimentally obtained
relative error of reduction. As the result of artificial mixture concentration at self-cleaning centrifugal separator under low
intensity of gravitation field, the mass fraction in the concentrate and the tailings of the separator has been determined.
It has been determined that the use of model material under the estimation of the sample reduction error makes it possible
to acquire the result close to the theoretically determined one. The introduction of the operation of concentration into the
scheme of sample preparation leads to the decrease of the sample preparation relative error, which indicates high
efficiency of concentration during sample preparation.
Key words: sample preparation; reduction error; precious metals; heavy minerals; artificial mixture; centrifugal separator.
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intermetallic compounds of platinum metals]. Obogashchenie rud – Mineral Processing, 1984, no. 1, pp. 44–47.
(In Russ.)
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Mining Geology, 1998, vol. 7, pp. 155–160. (In Russ.)
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4. Petrov S. V., Bederova L. L., Borozdin A. P. [Regarding the methods of reliable determination of precious metals
content in the samples with large winning of virgin metals]. Obogashchenie rud – Mineral Processing, 2015, no. 4,
pp. 30–33. (In Russ.)
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sampling”]. Ekaterinburg, UrSMU Publ., 2011. 316 p.
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pererabotki rud i tekhnogennogo syr'ia: mater. XIX Mezhdunar. nauch.-tekhn. konf. [Proc. 19th Int. Sci. and Pract. Conf.
“Scientific fundamentals and practice of ore and technogenic raw material processing”]. Ekaterinburg, Fort Dialog-Iset'
Publ., 2014, pp. 210–214. (In Russ.)