Concerning the principles of development of mineral resources in the polar zone of Russia by small enterprises

Abstract

Increasing the efficiency of developing deposits of solid minerals in the polar zone of the northeast of Russia is an objective necessity. Unlike traditional territories, the peculiarities of the region predetermine the use of new approaches and methods in studying the feasibility of developing various deposits, including the widely represented relatively small deposits. Compared to large ones, medium and small mining enterprises operating or created on their basis have fewer opportunities to protect their interests. Their design and actual technical and economic indicators are generally worse than those of more powerful economic entities. The decrease in the scale effect can be achieved in various ways. Reduction of risks in the implementation of investment projects is possible through more thorough study and subsequent additional training, as a rule, complex in structure and heterogeneous in quality deposits involved in operation. A set of basic and private principles of different levels and values has been formed, which should guide small and medium-sized enterprises in the planning, design and development of deposits in the polar zone of Russia. Its use in the preparation and decisionmaking allows at least partially to reduce the impact of complicating and costly production factors.

State of gold mining industry in the Republic of Sakha (Yakutia) in the period of sanctions and restrictions

“…The Khangalasskoye deposit (ore body No.1, Central zone) was partially mined in 1968-1973. A total of 1329 kg of gold was extracted, including about 700 kg obtained as a result of operational exploration [15].…”

Change in Grain-Size Composition of Lignite under Cyclic Freezing-Thawing and Wetting-Drying

“…The coal delivery terms may vary from 3 -4 months to 2 years in this case, and the fuel loses its properties and qualities during this time period. In the open air, coal, especially lignite, gets weathered, dehumidified, cracked and broken into a large amount of fines [1] [2] [3]. The external factors which accelerate oxidation of coal in storage are rainfalls and temperature fluctuations (depending on season and time of day).…”