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Energy sources.ppt


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Energy sources.ppt

  1. 1. Minerals and Energy Resources Prepared By : Prachi Surpaithankar Class X ‘B
  2. 2. CLASSIFICATION OF MINERALS  MINERALS Metallic o Ferrous o Non Ferrous o Precious Non Metallic e.g. Mica, limestone Salt, Potash,marble, S ulphur,granite, Sandstone,etc. Energy Minerals Coal Petroleum Natural Gas
  3. 3. Metallic Minerals We get metal from these minerals. Ores of iron ,copper , gold, silver, lead, aluminum , tin etc. are important examples of metallic minerals.
  4. 4. Non Metallic Minerals  These are those minerals which do not contain metals.  Coal , petroleum , mica, manganese etc. are some important non metallic minerals .  Coal & Minerals oil are also called energy minerals.
  5. 5. MICA
  6. 6. MICA & It’s Properties  MICA is Non metallic mineral . India is the largest producer of MICA . It produce more than 60% of world’s mica.  It is made up of series of plates or leaves  It can be converted into thin sheet  It can be black, green, red , yellow or brown
  7. 7. Production of Mica  MICA deposits are found in northern edge of the chhottanagpur plateau .  Koderma Gaya- Hazaribagh belt of Jharkhand is the leading producer.  In Rajasthan the major mica producing area is around Ajmer.  Nellore mica belt of Andhra Pradesh is also an important producer in the country.
  8. 8. Rock Minerals - Limestone  Lime stone is associated with rocks composed of either calcium carbonate or magnesium, or mixture of these two. It is found in sedimentary rocks.  Lime stone used for a variety of purpose , It is basic input in Chemical ,Iron & Still industry
  9. 9. Production of Limestone :
  10. 10. Conservation of Minerals  Minerals are considered backbone of an economy .  Most of the minerals are non renewable .so there is an urgent need to conserve them . Measures to conserve the minerals : 1.The minerals should be used in planned way . 2. Wastage of minerals should be minimised. 3.Modern technology should be used for exploitation. 4.Export of minerals should be minimised. 5.We should encourage recycling of metals.
  11. 11. Energy Resources The resources which are used for generating energy are known as energy resources. Coal , petroleum ,uranium etc. some of the important energy resources. Energy resources can be classified as conventional & Non conventional resources.
  12. 12. Conventional Sources of energy Non Conventional sources of energy These are non renewable sources of energy e.g. Coal & Petroleum These are renewable sources of energy e.g. Solar & wind energy These are going to last just for These are going to last just 100-200 years forever These cause air & water pollution These do not cause any pollution
  13. 13. What is coal ??  Cole is an inflammable organic substance, composed mainly of hydrocarbons found in the form of sedimentary rocks & capable of being used as a fuel to supply heat & light.  About 67 % of the country ‘s requirement of power is met through coal.  It is main source of power generation in India.  Due to it’s high utility & source of energy it is often called “ BLACK GOLD”
  14. 14. Varieties of Coal 1.Anthracite Coal: Best quality of coal contains over 80% carbon Very hard & compact Has highest heating value Burn without smoke or soot Found only in Jammu & Kashmir
  15. 15. Varieties of Coal 2.Bituminous Coal  Most widely used coal Contains 60%-80 % carbon It is dense , compact & brittle It’s calorific value is very high  High proportion of carbon & low moisture content Found in Jharkhand, Bihar, Orissa, West Bengal & MP
  16. 16. Varieties of Coal 3.Lignite Coal Known as brown coal contain 60 % carbon Lower grade coal which is soft with high moisture Color varies from dark to black brown Found in Palna of Rajasthan,Neveli of Tamilnadu, Lakhimpur of Assam & some part of Jammu & Kashmir
  17. 17. Varieties of Coal 4.Peat Coal This is a first stage of transformation of wood into coal Contain 50 % to 60 % carbon It burns like wood, gives less heat, emits more smoke & leaves a lot of ash after burning
  18. 18. Classification of Coal fields in India The coal fields of India can be classified into two groups: 1.Gondwana coal fields 2.Tertiary coal fields
  19. 19. Gondwana coal field :  99 % of the production of coal in India  Of the 113 major coalfields found all over India  80 are located in the rock systems of the lower Gondwana age  The Gondwana coal is said to be about 200 million years old  It includes coking & non coking coal  Areas- Damodar valley , Bokaro, Mahanadi ( MP , Orissa), part of Bihar, Wardha , Godavari ( Maharastra)
  20. 20. Tertiary Coal Fields :  The tertiary rock system bears coal of younger age which are only 55 million years old  The Coal generally has low carbon & high %of moisture & sulphur .  Important areas- parts of Assam, Meghalaya , Arunachal Pradesh , Nagaland , Himalayan foot hills.
  21. 21. Friends, “COAL mining ruins the environment the burning is coal is not environmental friendly ” Please use renewable sources of power like Solar ,wind & tidal energy “Save power” Thank You ………..