Magazine «RUDY I METALLY» («ORES AND METALS»)


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Applied metallogeny
M. M. Girfanov, V. A. Istomin, E. E. Kotelnikov, I. G. Tretyakova , V. Yu. Vasilchenko, G. M. Sagadeeva THE STATUS AND DEVELOPMENT PROSPECTS OF THE MINING MINERAL RESOURCE BASE IN MAURITANIA

FSBI Central Research Institute of Geological Prospecting for Base and Precious Metals, Moscow

General information on the geology and mineral economics of Mauritania is briefly summarized. The status and prospects of the national mining mineral resource base (iron ore, gold, copper, etc.) are reviewed.

Keywords: Mauritania, West African craton, mineral resource base, solid minerals, mineral production, mineral exports, iron, gold, copper.

M. M. Girfanov (PhD, leading researcher)This email address is being protected from spambots. You need JavaScript enabled to view it.

V. A. Istomin (reseracher)This email address is being protected from spambots. You need JavaScript enabled to view it.

E. E. Kotelnikov (PhD, Head of international relations department) This email address is being protected from spambots. You need JavaScript enabled to view it.

I. G. Tretyakova (PhD, Scientific Secretary)This email address is being protected from spambots. You need JavaScript enabled to view it.

V. Yu. Vasilchenko (leading engineer) This email address is being protected from spambots. You need JavaScript enabled to view it.

G. M. Sagadeeva (leading engineer) This email address is being protected from spambots. You need JavaScript enabled to view it.

A. N. GlukhovGENETIC CLASSIFICATION OF ARCHEAN LODE GOLD DEPOSITS

N. A. Shilo Northeastern Integrated Research Institute FEB RAS, Magadan

Main features of the Archean gold deposits spatial distribution are outlined. Geology and ore composition of two deposits within the Canadian shield distinguished by tectonic position and host rock lithology are described. Delineation of two separate genetic types of the Archean gold deposits, orogenic and granitoid-related, similar to Phanerozoic accretion-collision belts is validated on that basis.

Keywords: Archean gold deposits, craton, granite-greenstone terranes, orogenic, granitoid-related.

A. N. Glukhov (PhD, senior researcher) This email address is being protected from spambots. You need JavaScript enabled to view it.

Prognosis, prospecting and exploration: Techniques and methods
S. A. Milyaev1, G. G. Samosorov2, S. V. Yablokova 1, L. V. Shatilova 1, N. N. Pozdnyakova 1 GEOCHEMICAL FEATURES OF NATIVE GOLD AS DIRECT SIGNS OF ORE FORMATION LODE AND ALLUVIAL GOLD OCCURRENCE TYPES

1 FSBI Central Research Institute of Geological Prospecting for Base and Precious Metals, Moscow

2FSS Center of Special Equipment Institute of Forensic Science, Moscow

The features of impurity element distribution in native gold of two ore formation gold deposit types are considered. A typomorphic set of elements for gold-polysulfide-quartz and gold-quartz low-sulfide mineralization was determined. Geochemical indicators for estimating ore formation types of native gold are offered. The differences in gold composition due to metallogenic specialization of regions are established. Data on the distribution of rare-earth elements in native gold are obtained, which allows to predict igneous rocks composition during gold-polysulfide-quartz deposit formation.

Keywords:impurity elements in native gold, geochemical indicators.

S. A. Milyaev (PhD, leading researcher)1 This email address is being protected from spambots. You need JavaScript enabled to view it.

G. G. Samosorov (PhD)2

S. V. Yablokova (PhD, senior researcher)1

L. V. Shatilova (senior researcher)1 This email address is being protected from spambots. You need JavaScript enabled to view it.

N. N. Pozdnyakova (PhD, researcher)1 This email address is being protected from spambots. You need JavaScript enabled to view it.

A. P. Motov, Yu. E. Malakh ESTIMATION PARAMETERS OF POTENTIAL VERESOBORSKY MASSIF AREAS PRODUCTIVITY FOR PRIMARY Pt MINERALIZATION, MIDDLE URALS

JSC Polymetal MC, St. Petersburg

The analysis of statistically representative material of lithochemical sampling within Veresoborsky dunite massif revealed a group of correlating chemical elements (Cr, Mn, Co, Ni, Bi, Sn, W, Zn) whose accumulation trend coincides with that of Pt. The established pattern enables proposing criteria of comparative evaluation regarding primary Pt mineralization productivity of local areas (0,5–3 km2) in both Veresoborsky massif and its counterparts composed of the Urals Kachkanarsky complex (υO3k) rocks.

Keywords:: primary Pt mineralization, dunite-clinopyroxenite-gabbro Kachkanarsky complex, Veresoborsky massif, Urals.

A. P. Motov, (PhD, chief specialist of business development directorate) This email address is being protected from spambots. You need JavaScript enabled to view it.

Yu. E. Malakh (Director of business development) This email address is being protected from spambots. You need JavaScript enabled to view it.

Geology of ore deposits
L. I. Efanova1, S. K. Kuznetsov 1, M. B. Tarbaev2, T. P. Mayorova1,3 GOLD POTENTIAL OF MANITANYRDSKY AREA AND PROSPECTS FOR RESOURCE POTENTIAL RAMP-UP, POLAR URALS

1FTC Institute of Geology Komi SC UB RAS, Syktyvkar

2Department of Geology and licensing Department for subsoil use of the North-Western Federal district (Kominedra), Syktyvkar

3P. Sorokin Syktyvkar State University, Syktyvkar

General information on geological structure and gold potential of Manitanyrdsky area located in the western Polar Urals is provided. Niyayuskaya ore zone is revealed, Verkhneniyayuskoye-2, Niyakhoiskoye-2 and Yagodnoye mineral occurrences are characterized. It is shown that, aside from vein gold-sulfide-quartz mineralization, disseminated and veinlet-disseminated mineralization separated from quartz veins is widespread, which is also of economic interest. Gold in ores occurs as ultrafine inclusions in arsenopyrite and pyrite; it is also found in cross fractures as overgrown with later sulfides, which suggests two ore formation stages – gold-pyrite-arsenopyrite and gold-chalcopyritesphalerite- galena. Lithochemical prospecting results are presented, gold-enriched areas are identified. Prospects for the area’s resource potential ramp-up are assessed.

Keywords:gold, Polar Urals, Manitanyrdsky area, gold-sulfide mineralization, Niyayuskaya ore zone, mineral oc- currences, resource potential.

L. I. Efanova (PhD, senior geologist )1 This email address is being protected from spambots. You need JavaScript enabled to view it.

S. K. Kuznetsov (PhD, chief researcher )1 This email address is being protected from spambots. You need JavaScript enabled to view it.

M. B. Tarbaev (PhD, Head of geology and licensing department)2This email address is being protected from spambots. You need JavaScript enabled to view it.

T. P. Mayorova (PhD, senior researcher)1,3This email address is being protected from spambots. You need JavaScript enabled to view it.

M. N. Zaitseva, V. V. Kuznetsov, V. D. Konkin, T. V. Seravina, A. V. Inyakin, N. N. Bogoslavets, M. M. Khachaturov LEAD AND ZINC DEPOSIT FORMATION CONDITIONS WITHIN ANGARA-BOLSHEPITSK MINERAGENIC ZONE, YENISEI RIDGE

FSBI Central Research Institute of Geological Prospecting for Base and Precious Metals, Moscow

The paper shows the main characteristics for geological and associated ore formations in the Tungusik formation complex. Ore formation deposit types and ore field types in the region are identified and described. Based on the identified lithofacies, the paleoenvironment of stratiform ore associations formation is characterized. The role of metamorphism and structural factors affecting prospecting conditions are shown. The relationship between the mineral type of ores and organic carbon content in ore-bearing strata for various geological and economic types has been revealed. The obtained and generalized data are of practical interest in designing forecasting/prospecting deposit models and improving prospecting efficiency.

Keywords:Yenisei ridge, Angara-Bolshepitsk mineragenic zone, Tungusik formation complex, stratiform polymetallic deposits, ore formations, deposit formation conditions, geological and economic types.

M. N. Zaitseva (researcher) This email address is being protected from spambots. You need JavaScript enabled to view it.

V. V. Kuznetsov (PhD, Head of base metals department) This email address is being protected from spambots. You need JavaScript enabled to view it.

V. D. Konkin (PhD, leading researcher) This email address is being protected from spambots. You need JavaScript enabled to view it.

T. V. Seravina (PhD, Deputy Head of base metals department) This email address is being protected from spambots. You need JavaScript enabled to view it.

A. V. Inyakin (researcher)This email address is being protected from spambots. You need JavaScript enabled to view it.

N. N. Bogoslavets (researcher) This email address is being protected from spambots. You need JavaScript enabled to view it.

M. M. Khachaturov (engineer) This email address is being protected from spambots. You need JavaScript enabled to view it.

S. M. Makeev, E. A. Muromtsev, V. A. Makarov, G. V. Belokonov FEATURES OF LEAD AND ZINC METALLOGENY WITHIN THE YENISEI RIDGE

Institute of Mining, Geology and Geotechnologies, Siberian Federal University, Krasnoyarsk

Information collected on deposits, ore occurrences, and lead and zinc mineralization points known within the Yenisei Ridge is provided. A summary of the latest data on the geology and metallogeny of lead and zinc in the region is presented. A brief description of the deposits is given and their ore formation typification is carried out. The position of deposits in a stratigraphic section, the relationship with geological formations and tectonic structures, and subsequent conclusions about deposit location patterns and metallogenic zonality of the area were examined. The position analysis of polymetallic mineralization in regional geophysical and geochemical field revealed the presence of lead → zinc → barium trend from the Ishimbinsk fault towards the Siberian platform and the potential discovery of economically significant polymetallic mineralization in the eastern Yenisei Ridge.

Keywords:Yenisei Ridge, Angarsk ore region, polymetallic deposits, tectonic structures in the gravitational field, distribution patterns, metallogenic zoning, lead, zinc.

S. M. Makeev (PhD, HAC Associate professor, Associate professor of deposit geology and prospecting metods department) This email address is being protected from spambots. You need JavaScript enabled to view it.

E. A. Muromtsev (postgraduate) This email address is being protected from spambots. You need JavaScript enabled to view it.

V. A. Makarov (PhD, Professor, Director, Head of deposit geology and prospecting metods department) This email address is being protected from spambots. You need JavaScript enabled to view it.

G. V. Belokonov (postgraduate This email address is being protected from spambots. You need JavaScript enabled to view it.

GEOLOGISTS ABOUT THE WAR

Fragments of S. D. Sher «War years» manuscript

IN MEMORIUM

Konstantinovskij А. А.

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