RUSSIAN

OUR SERVICES:

  
  

  
  
  

GEOLOGICAL SERVICES – PROSPECTING, EXPLORATION, FEASIBILITY STUDY OF PRIMARY (ORE) AND PLACER GOLD DEPOSITS


  
Geological reconnaissance works covering a Customer License. The works are performed in three stages – pre-field work preparation, field works and cameral works on geological reporting. The pre-field work preparation involves: 1 - collection of materials for a region of works and for a licensed area; 2 – satellite images interpretation for the licensed area. The field works includes a geologist visiting the licensed area and sampling of all gold-bearing structures that are being worked out by artisanals and all supposed gold-bearing structures that have been identified according to the space image interpretation data. On completion of the field work and receiving of laboratory results on selected samples, a geological report is drawn up, in which prospects for identifying gold deposits in the licensed area and expediency of setting up prospecting there are determined.
  
  
Prospecting. The specific purpose of prospecting is to identify ore bodies for which expediency of exploration works has been determined. Works can be carried out in full throughout the entire licensed area using the most effective prospecting methods (geological traverses, geochemical and panning survey, trenching and drilling), or in concise way, in this case, only sampling of artisanal workings available on the area are conducted. Choice of research methods depends on expediency, wishes of a Customer and his financial capabilities.
  
  
The result of the conducted works is a geological report. On receiving of positive results, a description of ore bodies with their location on maps and plans for which single intersections by mine workings or outcrops were obtained, the estimated gold resources by P1 category (Inferred) and preliminary information on exploration techniques of their development are given in the report. On receiving negative results, geological justifications are given that the area is deemed non economical.
  
  
The works include pre-field preparation, field works and cameral works on reporting.
  
  
Exploration. The specific purpose of exploration is size detection of ore bodies on a plan and at depth and determination of gold content in them with reserve estimation by C2 and C1 categories. The key techniques of exploration are trenching, pitting, and drilling.
  
The result of the conducted works is a geological report. On receiving of positive results, gold reserve estimates by C2 and C1 categories (Indicated, Measured) with plans and sections of ore bodies with sampling data are given in the report. A preliminary feasibility study for development of these ore bodies is also provided. On receiving negative results, geological justifications are given that the ore bodies are deemed non economical.
  
The works include pre-field preparation, field works and cameral works on reporting.
  
  

  

ORGANIZATION AND PUTTING INTO OPERATION DIAMOND AND GOLD MINING COMPANIES


  
IMRCAAA specialists will construct and put into operation mining enterprises for a Customer with an annual gold capacity of up to 500-700 kg. In order to go ahead with establishing a mining enterprise, a Customer should have the following documents: 1 - an operating license (or a prospecting license); 2 - a geological report with reserve estimates. Works are carried out in the following order:
  
  
  • a technical project for deposit development and a business plan are drawn up, which are submitted to the Customer for approval;
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  • an operating license is issued (if it has not been issued earlier) and an environmental certificate;
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  • mine machinery and equipment are purchased, a washing plant and a camp are constructed;
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  • putting into operation of a mining enterprise.
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    IMRCAAA has several proposals for Investors to set up gold mining enterprises on licenses with explored reserves of alluvial gold

    (Sigiri-1 project),

    and on licenses with identified gold placers.

      
      
      

  

LABORATORY INVESTIGATION ON MICRODIAMOND RECOVERY BY THERMOCHEMISTRY


  
Information on the content of microdiamonds in kimberlite rock makes it possible to predict the presence of macrodiamonds in a kimberlite pipe. To extract microdiamonds from a sample, the Institute has developed a technology of sequential processing of a silicate sample by salt decomposition, caustic fusion and acid treatment, which ensure optimal reduction of samples and safety of diamonds contained in them. Employment of these methods is determined by composition of samples incoming for dissolution. Salt dissolution of the crushed material is carried out in water medium at a temperature of 1000C and reduces the sample volume by 80-90%. Caustic fusion is carried out at 500-5500C in a muffle furnace. Acid treatment is employed to dissolve small samples, to dissolve residue from caustic fusion and to discard sulfides. Sample weights for the recovery of microdiamonds usually amount of 5-50kg.
  
  
At the present time our specialists are developing a new technology for prospecting and evaluation of diamond-bearing kimberlite bodies on the base of microdiamond recovering by thermochemistry dissolution and determination of micro/macrodiamond ratio in diamond-bearing rock.
  
  
  
  
  
  
  
Simferopol, Crimea, Russia
Limited Liability Company "Institute of
Mineral Resources of the countries of Africa Asia and America"
e-mail: v-shirkunov@yandex.ru