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picture1_Economic Survey 92713 | 1 Jairam


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File: Economic Survey 92713 | 1 Jairam
geological exploration as per unfc stages and field guidelines by m s jairam deputy director general geological survey of india overview india produces as many as 84 minerals national mineral ...

icon picture PDF Filetype PDF | Posted on 17 Sep 2022 | 3 years ago
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    GEOLOGICAL EXPLORATION AS PER 
   UNFC STAGES AND FIELD GUIDELINES 
                         
                       By 
                         
                    M.S.Jairam 
                 Deputy Director General 
                Geological Survey of India  
              Overview 
  India Produces as many as 84 minerals 
  National Mineral Inventory database is maintained by: 
    IBM for 70 non coal solid minerals 
    GSI for coal and lignite 
    Dept. of Petroleum & Natural Gas for oil and gas 
   Both government and private exploration agencies followed the 
   classification  of  mineral  reserves/resources  evolved  by  GSI  in 
   1981  
   Prior to 1981 – No Nationally accepted system 
  National classification system is 2 dimensional system – with no 
   distinction between technical and economic with an emphasis on 
   geological axis  
       CLASSIFICATION OF MINERAL RESOURCES 
   Basis of Classification 
   1.  Geological consideration 
       Quantum of Exploration 
       Geologic nature (mode of occurrence, shape, depth etc) 
      Common to most system of classification 
   2.  Techno economic consideration 
       Mining Technology 
       Processing technology 
                  (emphasis varies on different system of classification) 
          
                          DIAGRAMMATIC REPRESENTATION OF NATIONAL ORE / 
                                                            RESOURCES CLASSIFICATION 
               
             MINING                                   DETAILED EXPLORATION PHASE 
               PHASE                                                                            RE      CO    NNAISSANCE &  PROSPECTING PHASE 
                                                     Identified Resources                                                                     Undiscovered Resources  
                                      Ore Reserves ( Tonnage and Grade)                                                                       (Tonnage) 
      Developed Ore                       Undeveloped Ore                                                                                     ( Based on surmise) 
      ( Mining                            ( In Situ Reserves) 
      Reserves with                                                          Demonstrated 
      Design, Dilution 
      & Extraction 
      Factor) 
      Fully  Partly                       Proved                      Probable  Possible                                                      Prospective  Prognostic 
                                                                                                                                              ( In known                 ( In unknown 
                                                                                                                                              areas)                     areas) 
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...Geological exploration as per unfc stages and field guidelines by m s jairam deputy director general survey of india overview produces many minerals national mineral inventory database is maintained ibm for non coal solid gsi lignite dept petroleum natural gas oil both government private agencies followed the classification reserves resources evolved in prior to no nationally accepted system dimensional with distinction between technical economic an emphasis on axis basis consideration quantum geologic nature mode occurrence shape depth etc common most techno mining technology processing varies different diagrammatic representation ore detailed phase re co nnaissance prospecting identified undiscovered tonnage grade developed undeveloped based surmise situ demonstrated design dilution extraction factor fully partly proved probable possible prospective prognostic known unknown areas...

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