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Date submitted1977-08-20
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Date accepted1977-10-21
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Date published1978-02-01
Geological and industrial grouping of iron ore deposits in the USSR
- Authors:
- G. S. Porotov
- E. V. Veselov
The Soviet Union is the world leader in iron ore reserves and production, leaving developed capitalist countries, including the United States, far behind. In our country explored or exploited more than three hundred iron ore deposits, different in genesis, material composition of ores, industrial importance ...
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Date submitted1977-08-17
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Date accepted1977-10-05
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Date published1978-02-01
Main types of gold ore formations
- Authors:
- P. A. Strona
Despite the ever-increasing use of formation concepts in metallogenic studies, in the approach to the allocation of ore formations not only does not converge points of view, but, on the contrary, there are new divergences in views ...
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Date submitted1977-08-26
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Date accepted1977-10-18
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Date published1978-02-01
Some general regularities of mineralization distribution in gold deposits of different formations
- Authors:
- S. V. Sendek
- L. N. Chernik
One of the important points of geological and industrial assessment of a gold deposit is the establishment of the distribution features of mineralization. Without this it is impossible to reliably determine the density of the exploration network and, consequently, confidently make the calculation of reserves ...
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Date submitted1977-08-20
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Date accepted1977-10-16
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Date published1978-02-01
New stratiform copper deposit in Afghanistan
- Authors:
- Sidiki Atikulla
A group of Soviet and Afghan geologists in 1973 discovered a new large Aynak copper deposit in Afghanistan. It is located 30 km southeast of Kabul, within the central part of the Kabul tectonic block .....
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Date submitted1977-08-20
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Date accepted1977-10-25
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Date published1978-02-01
Nimba iron ore deposit in Guinea
- Authors:
- Kone Mamadi
The Nimba deposit is located in the extreme southeastern part of Guinea and extends into neighboring Liberia, where iron ore production of approximately 9 million tons per year is taking place.The iron ores of the deposit are confined to the upper part of the Precambrian crystalline rocks ...
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Date submitted1977-08-11
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Date accepted1977-10-18
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Date published1978-02-01
Structure of apatite-magnetite deposit of Vuorijärvi massif
- Authors:
- Yu. A. Solopov
The deposit of apatite-magnetite ores is located in the south-eastern part of the Vuorijärvi massif. Its structure involves apatite-magnetite ores, cisapalite and phlogopite-calcite carbonatites ...
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Date submitted1977-08-22
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Date accepted1977-10-14
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Date published1978-02-01
Metasomatites of magmatic deposits of scapolite subtype in the Turgai Trough
- Authors:
- G. S. Porotov
- T. I. Loginova
The scapolite subtype of contact-metasomatic iron ore deposits was identified by G.A.Sokolov. In the Turgai trough four deposits belong to this subtype: Kacharskoye, Yuzhno-Svetlo-Dzharkulskoye, Kuttukskoye and partially Davydovskoye ...
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Date submitted1977-08-17
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Date accepted1977-10-14
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Date published1978-02-01
Position of the conical fault and elements of the block structure of the apatite-nepheline deposit of the Rasvumchorr Plateau
- Authors:
- G. I. Bobryshev
- V. G. Khishchenko
The Rasvumchorr Plateau deposit is located in the southeastern part of the ore field of the Khibiny massif. According to geomorphologic conditions within its boundaries there are two sections with a total length of about 3.3 km: the Rasvumchorr Plateau proper and the Eastern Rasvumchorr ...
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Date submitted1977-08-18
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Date accepted1977-10-29
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Date published1978-02-01
Change of phlogopite composition during weathering of carbonatites and phenomenon of sorption of rare-earth elements by vermiculite
- Authors:
- L. V. Kulachkov
In the southwestern exocontact part of the Kovdorsky massif of ultrabasic, alkaline rocks and carbonatites (Kola Peninsula) there is a deposit of adatite-francolite ores, the bodies of which lie on weathered early calcite carbonatites with apatite, magnetite, sulfides and phlogopite ...
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Date submitted1977-08-10
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Date accepted1977-10-11
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Date published1978-02-01
Regularities of distribution of deposits of building sand and gravel in the north-west of the European part of the USSR
- Authors:
- M. K. Troshina
Construction sand and gravel are extracted from anthropogenic sediments, which are so spoiled, at least in the vicinity of transportation routes, that it is already possible to speak about the limit of their potential reserves. The demand for this type of raw material and its shortage, in particular for the north-western economic region, make it necessary to search intensively for new deposits ...
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Date submitted1977-08-23
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Date accepted1977-10-26
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Date published1978-02-01
Mineral and raw material base of bauxites (USSR, foreign countries)
- Authors:
- N. A. Ageeva
Bauxite is the main raw material for aluminum production in the USSR and abroad. Production and consumption of aluminum is developing very rapidly. It is used in engineering, abrasive, metallurgical, chemical, cement and paint industries ...
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Date submitted1977-08-26
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Date accepted1977-10-09
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Date published1978-02-01
About coloring of Iceland spar crystals
- Authors:
- A. V. Skropyshev
- E. V. Kasyanenko
Interest in Iceland spar, a transparent variety of calcite, stems from its extensive use in optical devices. Particular attention is attracted to Iceland spar from the point of view of studying the causes that cause coloration of crystals, and identifying ways of directing the impact on its intensity ...
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Date submitted1977-08-02
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Date accepted1977-10-25
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Date published1978-02-01
On the density of the exploration network at the bauxite deposits of the Turgai Strait
Bauxite deposits of the Turgai trough, which are one of the raw material bases of the alumina and aluminum industry of the USSR, are known since 1931. These deposits belong to the platform karst and karst-erosion ...
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Date submitted1977-08-19
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Date accepted1977-10-10
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Date published1978-02-01
Multifactor analysis of regularities of the area development of rupture faults in the Vorkutskoye field of the Pechora coal basin.
- Authors:
- V. V. Kiryukov
- A. M. Zysin
- I. G. Klushin
Structurally and tectonically, the Vorkutsk coal deposit is a large brachysynclinal fold (mulda), the long axis of which has a north-north-east strike ...
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Date submitted1977-08-01
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Date accepted1977-10-02
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Date published1978-02-01
Study of fracturing as a predictive factor of rupture disturbance in the Vorkutskoye and Vorgashorskoye fields of the Pechora coal basin
The introduction of modern complex mechanization into the practice of coal mining places high demands on the detail and reliability of forecasting of mining and geological conditions and complicating factors. Such factors at the Vorkutsk and Vorgashorsk coal fields include, first of all, small-amplitude discontinuities in coal seams with displacement of less than 10 m, which due to their parameters are not established during exploration works, so their meeting by preparatory and cleaning mine workings turns out to be in one way or another unexpected....
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Date submitted1977-08-05
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Date accepted1977-10-10
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Date published1978-02-01
On structural features and methodology of additional exploration of the Zapolyarnaya mine field of the Irkutsk deposit of the Pechora coal basin
- Authors:
- E. A. Plotkin
With the mechanization of coal mining at mines the problem of detection and prediction of low-amplitude (less than 10 m) disturbances has become acute. The solution of this problem is defeated by low resolution of exploratory drilling and imperfection of existing methods ...
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Date submitted1977-08-21
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Date accepted1977-10-12
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Date published1978-02-01
Forecast of the quality of the mined coal mass according to the data of geological exploration in the south-western Donbass region
- Authors:
- N. P. Ochkur
The quality of fossil coals, along with the thickness of coal seams, is the leading feature that determines the industrial value of individual sites and mine fields of coal deposits. Coal quality is determined during geologic exploration in each intersection of a coal seam by an exploration well ...
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Date submitted1977-08-02
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Date accepted1977-10-03
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Date published1978-02-01
Splitting of coal seams and estimation of mining and geologic conditions of their development
- Authors:
- M. F. Pozhidaeva
Most of the coal seams of the Donetsk basin are characterized by the phenomenon of splitting. This complicates the structure of seams, increases their ash content and complicates the conditions of mining ...
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Date submitted1977-08-05
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Date accepted1977-10-06
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Date published1978-02-01
About criteria of economic estimation of mineral raw material deposits
- Authors:
- G. G. Shalmina
Expansion of the mineral resource base of the country is associated with the search and preparation of mineral deposits for development, mainly in new territories remote and insufficiently industrialized. The study and development of these deposits is associated with significant labor and monetary costs, the overwhelming share of which (up to 60-80%) is associated with the processing of raw materials and transportation of marketable products ...
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Date submitted1977-08-18
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Date accepted1977-10-20
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Date published1978-02-01
Use of calcite thermoluminescence method for searching ore bodies at deep horizons of Sarbaisky deposit
- Authors:
- Mohamed Adam Osman
Sarbaiskoye iron ore deposit includes three ore deposits: Eastern, South-Eastern and Western. The question of structural relationships of these deposits is still controversial. Researchers of the Sarbaiskoye deposit come to the conclusion that the South-East deposit is a shifted part of the East deposit (the shift took place along the latitudinal disturbance in the area of profile XlX to the east by 350 m) ...