The Science in Siberia newspaper carried a report on the Trans-Baikal Territory--a vast exploratory area for Russia's mining sciences, in August 2011, on Coal Miner's Day marked in this country for many. Indeed, this territory has as much as 38 percent of the nation's commercial resources of fluor spar, over 25 percent of copper, 27 percent of molybdenum, 16 percent of niobium, 18 percent of tantalum, 9 percent of lead, 7 percent of gold, 18 percent of titanium, many rare-earths, and other deposits.
The Udokan field of cupriferous sandstone with associated silver and gold is one of the hardest to develop. Its area exceeds 30 km2, the altitude differential of the relevant layers in the vertical section is about 500 m, with ore and waste rocks interstratified.
The deposits were discovered in the Kalarsky district of the Trans-Bailkal Territory by geologist Yelizaveta Burova in 1949; an overall ore evaluation was carried out somewhat later. In 1952 a geological party came to work there. In 1953 to 1958, a number of prospecting boreholes were sunk, with the geological and technical evaluation of local ores completed. The copper reserves were found to exceed 1 mln tons, and the field was rated among unique ones. In 1960 to 1975, comprehensive studies were carried out, technological types and categories of ores identified, their occurrence conditions explored.
In recent years the natural environmental complexities of this area as well as the urgent need to step up the development of the field spurred a technical and economic advancement of the adjacent territory. This job was tackled by Chita State University headed by Dr. Yuri
View from the Udokan Ridge.
Reznikov. In 2007, the Institute of Mining (headed by RAS Corresponding Member Viktor Oparin), set up its branch in Chita in collaboration with Renat Geniatulin, Governor of the Trans-Baikal Territory, and petrographer and structural geologist Acad. Nikolai Dobretsov. The Chita branch came to be headed by Dr. Arthur Sekisov.
They worked out a new approach in the processing of local ores. In particular, the region is characterized by significant altitude differentials (over 1,000 m) and increased seismic activity (the number of registered weak tremors, making up decimal fractions of a point on the magnitude scale, amounts to twenty and more daily). Consequently, large-scale extraction of ores and overburden (bin tons) may trigger dangerous processes in the pit; that is destroy flanks, and destabilize the dumping grounds that, in turn, may set large masses of mined rock moving. That is why the decision to develop the Udokan field as a single giant pit is ill-founded and has to be revised in 2012.
At the moment local scientists specializing in different fields of knowledge and united by one common commitment are trying to find other breakthrough technologies in this mining region.
A. Sekisov et al., The Trans-Baikal Territory, a Vast Proving Ground for the Mining Science, "Science in Siberia" newspaper, No. 33, 2011
Опубликовано на Порталусе 30 сентября 2021 года
Ваше мнение ?