Перевод названия: RED GOLD FIELD - NEW PERSPECTIVE OBJECT OF THE BODAYBINSKY ORE AREA
Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: XXV КОНФЕРЕНЦИЯ «АЛЮМИНИЙ СИБИРИ»; XV КОНФЕРЕНЦИЯ «ЗОЛОТО СИБИРИ»; XIII КОНФЕРЕНЦИЯ «МЕТАЛЛУРГИЯ ЦВЕТНЫХ, РЕДКИХ И БЛАГОРОДНЫХ МЕТАЛЛОВ »; Красноярск; Красноярск
Год издания: 2019
Аннотация: The red gold field is located in Artemovsk ore knot of the Bodaybinsky ore region of the Irkutsk region, in 80 km to the North from the regional center of Bodaibo. Search and estimated works were carried out in 2011-2014. Vulgar, profile land magnetoprospecting, electroprospecting works (VP-2D electrotomography) are carried out, 18Показать полностьюtrenches, 113 search and prospecting wells of 60-450 m in depth are passed (average - 210 m). Continuous borozdovy approbation of trenches and a core of wells is carried out. In wells the GIS complex including the gamma logging (GL), directional survey (IK), electric logging MOSCOW TIME, logging of the seeming resistance (SR), the method of electrode potentials (MEP) is executed. The material structure and technological properties of ores is studied. Calculation of stocks and an assessment of expected resources is executed. The red gold field is located in the southern part of the Red ore field, to Entre Rios of streams Warm and Red, the right inflows of the river of Bodaibo, in the field of development the verkhnerifeyskikh of carbonaceous slates, sericite - quartz slates with rare pro-layers sericite - quartz sandstones of the top pack of the top subsuite of aunakitsky suite (R3an33) which are spread by the interstratifying quartz sandstones and carbonaceous slates of the average horizon of aunakitsky suite (R3an32) and according to are blocked by high-carbonaceous slates, metaaleurolites, thin metasandstones of vachsky suite (R3 vc). The field is localized in breeds of the top subsuite of aunakitsky suite top рифея in the form of the uniform faltering and continuous the mineralized zone (MZ) consisting of two, the enclosed each other, saddle groups vein прожилково - interspersed quartz - sulphidic gold bodies - lower and top. The mineralized zone is dated for axial part of the main plikativny structure of a rudoproyavleniye - the Ore anticline. Tectonic study of breeds is presented by multi-scale, mainly small skladchatost, zones a smyatiya and a kataklaza of breeds, and gidrotermalno-metasomatic - the okvartsevaniye, a karbonatization and a sulfidization leading in general to formation of the metasomatic educations close to a formation of a berezitovy row. Within the Red field the mineralized zone is tracked on 1800 m, with a width from the first tens to 200 m and more, it has mainly northeast falling at an angle 45-85 °. Within the mineralized zone 46 ore bodies delineated according to continuous core approbation are allocated. Length of ore bodies reaches from the first hundreds of meters to 1300-1600 m, length of crossings of ore bodies from 1-5 to 35-52 m (at a board of 0,4 g/t), on falling the orudeneniye is tracked on 290-430 m from a surface and not delineated on flanks and on depth. Morphological type of an orudeneniye - the mineralized zones deposits with prozhilkovo-interspersed quartz - a sulphidic mineralization with total of sulfides to 3-3,5 %. Stem power of ore bodies from 1-5 to 35-52 m (at a board of 0,4 g/t), extent on pro-deleting from 100 to 1620 m and on falling from 50 to 600 m, the general established scope of an orudeneniye down about 430 m to the horizon of 580 m. Hades of deposits from 45 to 90 °, on average - about 75°. The leading mineral type of ores - quartz low-sulphidic (piritovy). The bulk of particles of gold is presented by grains of thin and fine gold (a fineness interval from 3 to 25 microns). Average settlement diameter makes 12,0 microns. The gold Probnost, by results of the nuclear and absorbing analysis, in test of ore fluctuates from 777 to 851. On complexity of a geological structure the field Red is referred to objects of the third group and presented by morphological type «average (from hundreds to one thousand meters long) and the large mineralized zones with the 3-5 m ore bodies and more». Stocks and expected resources on кат. C2+P1 at a board of 0,4 g/t is made by 36 993 kg. The field has prospects of a gain of stocks on flanks and on de
Журнал: ЦВЕТНЫЕ МЕТАЛЛЫ И МИНЕРАЛЫ - 2019
Номера страниц: 713-717
Издатель: Общество с ограниченной ответственностью "Научно-инновационный центр"