1.
2.
3.
4.
5.

Prospecting
Exploration
Development
Exploitation
Reclamation
 Prospecting

it is the first stage in the search of ore.
In this we study the literature and maps of
an area.
There are ...
 Direct

method
 It is limited to deposits on surface or near
surface.
 it consists of visual examination of either
out...
 Video

prospecting
 Indirect

method
 These can be used for deeper deposits.
 They include seismic ,radiometric ,
magnetic and many other ...
 Find

pics for seismic and these surveys
 Exploration
 2nd stage of mining
 Core

samples are obtained by diamond

drills.
 Different laboratory analyses are c...
 Video

core sample,diamond drill bit and
core samples and diamond drilling.
 Final

conclusion is drawn regarding worth
of the deposit.it is called reserve
estimation.
 At the end of this stage fe...
 Development

 It

is work of opening a mineral deposit for
exploitation.
 With it proper mining begins
 In this stage...
 Ore

handling and treatment plants
constructed .
 Then access to deposit may be gained by
1. Stripping overburden (surf...


access roads,plants pic
 Exploitation

 It

is actual recovery of mineral
 While development work continues
through out life of mine, in exploi...
 Mining

method selection
 The selection of mining method depend upon
1. Economics (comparing costs)
2. technology avail...
 Mining

1.
2.

method may be
Surface
underground
 Surface

methods
 Two main types
1. Mechanical excavation
2. aqueous excavation
Mechanical excavation methods
1. Open pit mining (thick deposit)
2. Quarrying (thin deposit)
3. Opencast mining,etc
 Video

open cast mining
 Aqueous

1.
2.

excavation
Placer mining
Solution mining,etc
 Video

placer mining
 Video solution mining
 Underground

mining methods
 Three classes
1. Unsupported methods(room and pillar)
2. Supported methods(cut and fill, )...
 Vide,cut

pillar

and fill stoping , block , room and
 reclamation
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
Stages in life of mine
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Stages in life of mine

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Stages in life of mine

  1. 1. 1. 2. 3. 4. 5. Prospecting Exploration Development Exploitation Reclamation
  2. 2.  Prospecting it is the first stage in the search of ore. In this we study the literature and maps of an area. There are two methods of prospecting. 1. Direct method 2. Indirect method
  3. 3.  Direct method  It is limited to deposits on surface or near surface.  it consists of visual examination of either outcrop or loose fragments that have weathered away from the outcrop  The samples are collected from the potential site for microscopic study in laboratory.
  4. 4.  Video prospecting
  5. 5.  Indirect method  These can be used for deeper deposits.  They include seismic ,radiometric , magnetic and many other methods.
  6. 6.  Find pics for seismic and these surveys
  7. 7.  Exploration  2nd stage of mining  Core samples are obtained by diamond drills.  Different laboratory analyses are carried out to evaluate the grade and tonnage of deposit.
  8. 8.  Video core sample,diamond drill bit and core samples and diamond drilling.
  9. 9.  Final conclusion is drawn regarding worth of the deposit.it is called reserve estimation.  At the end of this stage feasibility study is carried out which helps to decide, whether to abandon or develop the deposit.
  10. 10.  Development  It is work of opening a mineral deposit for exploitation.  With it proper mining begins  In this stage mining rights are acquired  Access roads to site are constructed  Power source is acquired
  11. 11.  Ore handling and treatment plants constructed .  Then access to deposit may be gained by 1. Stripping overburden (surface mining) 2. By excavating openings from surface to more deeply burried deposits(underground mining).
  12. 12.  access roads,plants pic
  13. 13.  Exploitation  It is actual recovery of mineral  While development work continues through out life of mine, in exploitation stage main emphasis is on production.  In this stage mining method is also selected.
  14. 14.  Mining method selection  The selection of mining method depend upon 1. Economics (comparing costs) 2. technology available 3. Size , shape and depth of ore 4. Ground water,strength of ore and host rock 5. Environmental factors as subsidence on surface,ventilation,work force etc.
  15. 15.  Mining 1. 2. method may be Surface underground
  16. 16.  Surface methods  Two main types 1. Mechanical excavation 2. aqueous excavation
  17. 17. Mechanical excavation methods 1. Open pit mining (thick deposit) 2. Quarrying (thin deposit) 3. Opencast mining,etc
  18. 18.  Video open cast mining
  19. 19.  Aqueous 1. 2. excavation Placer mining Solution mining,etc
  20. 20.  Video placer mining  Video solution mining
  21. 21.  Underground mining methods  Three classes 1. Unsupported methods(room and pillar) 2. Supported methods(cut and fill, ) 3. Caving(, block caving)
  22. 22.  Vide,cut pillar and fill stoping , block , room and
  23. 23.  reclamation
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