RESOURCES IN INDIA and its Types like Renewable Resources and Non Renewable Resources Part - I

 RESOURCES IN INDIA and its Types like Renewable Resources and Non Renewable Resources 


    Natural resources include air, water, soil, minerals, fossil fuels, plants, wild life etc. Many natural resources are used as raw materials. They play a vital role in the economic development of any region. Natural resources are classified on several basis. Based on continued availability, the resources are categorized into two types. Renewable Resources are those which have natural regeneration after their utilization.

    Solar energy, wind energy, biogas, tidal energy, wave energy etc. are the Renewable resources. Non- Renewable resources are the sources that cannot be replaced again after utilization. Coal, petroleum, natural gas etc. fall under this category.

MINERALS

    Mineral is a natural substance of organic or inorganic origin with definite chemical and physical properties. The process of extracting mineral from the earth is known as mining. The mines near the earth crust are known as open pit mines while the deep mines are known as shaft mines.



Types of Minerals:

    On the basis of chemical and physical properties, minerals are broadly grouped under two categories. They are 
  • Metallic minerals and 
  • Non-metallic minerals.


a) Metallic Minerals 

    Metallic minerals are the minerals which contain one or more metallic elements in them. Metallic minerals occur in rare, naturally formed concentrations known as mineral deposits. These deposits consist of a variety of valuable metals such as iron, manganese, copper, bauxite, nickel, zinc, lead, gold etc.

1. Iron ore 
    Iron ore is the most widely distributed elements of the earth crust, rarely occurs in a free state. It enters into the composition of many rocks and minerals especially from igneous and metamorphic rocks. The total recoverable reserves of iron ore in India are haematite and magnetite.



    Jharkhand is the leading producer of iron ore with 25% the country’s production. Singhbhum, Hazaribagh, Dhanbad and Ranchi districts are its major producers. Odisha with 21% production ranks second. Sundargarh, Mayurbhanj, Sambalpur and Keonjhar districts are its major producers. The magnetite production of Chhattisgarh is 18% (Rajgarh and Bilaspur are its leading districts) and the Karnataka is 20% (Chikmangalur, Chitradurga, Shimoga and Dharwad districts are its major producers). Andhrapradesh and Tamil Nadu produce about 5% each. Kurnool, Guntur, Cuddapah and Anantapur districts in Andhra Pradesh and Salem, Namakkal, Tiruvannamalai, Tiruchirappalli, Coimbatore, Madurai and Tirunelveli districts in Tamil Nadu are notable for the production of iron ore.


2. Manganese 
    Manganese is a silvery grey element. It is very hard and brittle in nature. It is always available in combination with iron, laterite and other minerals. It is an important mineral used for making iron and steel and serves as basic raw material for alloying. It is the most important mineral for making iron and steel. Nearly 10 kg manganese is required for manufacturing one ton of steel. It is also used in the manufacturing of bleaching powder, insecticides, paints and batteries.



    Manganese deposits occur mainly as metamorphosed bedded sedimentary deposits. The largest deposits of manganese is found in Odisha followed by Karnataka, Madhya Pradesh, Maharashtra, Goa, Andhra Pradesh, Jharkhand, Rajasthan, Gujarat, Telengana and West Bengal together constitute about 2% of the India’s manganese resource. India is the fifth largest producer of manganese in the world.

3. Copper 
    Copper is the first metal that prehistoric man has started using for many purposes. Being flexible, it can be made into utensils of any shape. Brass and Bronze are obtained when the copper alloys with zinc and tin respectively. Copper has been commonly used for making cooking utensils and other objects of common utility. In modern days, it is extensively used in vast variety of electrical machinery, wires and cables.



    Largest reserves of copper ore is in the state of Rajasthan followed by Jharkhand and Madhya Pradesh. The states of Andhra Pradesh, Gujarat, Haryana, Karnataka, Maharashtra, Meghalaya, Nagaland, Odisha, Sikkim, Tamil Nadu, Telangana, Uttarakhand and West Bengal account for 7.9% of the total copper reserves of India.

4. Bauxite 
    Bauxite is an important ore from which aluminium is extracted. It is found in the rock consisting mainly of hydrated aluminium oxides. Bauxite is widely distributed as surface deposits in the areas of laterite soil. Being light in weight and tough, aluminium is used in the manufacture of aircraft s and automobile engines. Bauxite is also used in the manufacture of cement and chemicals.

     Bauxite is an oxide of aluminium; the name has been derived after the French word Le Baux.



    The main bauxite deposits occur in Odisha, Gujarat (Junagadh, Amreli and Bhavnagar districts), Jharkhand (Ranchi and Gumila districts), Maharashtra (Sindhu durg and Ratnagiri), Chhattisgarh (Ballarpur and Durg districts), and Tamil nadu.

NOTE:
The organisations associated with minerals in India are 

1. The Geological Survey of India Headquarter is at Calcutta 
2. Indian Bureau of Mines Headquarter at Nagpur 
3. Non-Ferrous Material Technology Development Centre NFTDC, Hyderabad. 
4. The Ministry of Mines is responsible for the administration of all mines and minerals (Development and Regulation Act, 1957).

b) Non-Metallic Minerals

    These minerals do not contain metal in them. Mica, limestone, gypsum, nitrate, potash, dolomite, coal, petroleum etc are the nonmetallic minerals. 

1. Mica 
    In ancient time, Mica was used in ayurvedic medicine. Mica became very popular with the development of electrical industry. Abhrak is a good quality mica. It is translucent, easily splitable into thin sheets, flat, colourless, elastic and incompressible. Mica is used in making of insulating properties, as it withstands high voltage and has low power loss factor. Since it is a non conductor of electricity, it is exclusively used in electrical goods. It is also used in making of lubricants, medicines, paints and varnishes. 

    The major deposits of mica are found in Andhra Pradesh, Rajasthan, Odisha and Jharkhand.

2. Lime Stone 
    Limestone is associated with rocks composed of either calcium carbonate or the double carbonate of calcium and magnesium or mixture of both. Limestone also contains small quantities of silica, alumina, iron oxides, phosphorous and sulphur. 

    Limestone is used in the industries of chemicals for soda ash, caustic soda, bleaching powder, paper, cement, iron and steel, glass and fertilizers. The major producing areas: Karnataka, Andhra Pradesh, Telangana, Rajasthan, Madhya Pradesh, Tamil Nadu, Meghalaya, Gujarat and Chhattisgarh.

3. Gypsum 
    Gypsum is a hydrated sulphate of calcium which occurs as white, opaque or transparent minerals in beds of sedimentary rocks such as limestone, sandstone and shale. Gypsum is used in the manufacture of cement, fertilizers, wall board, plaster of paris and in soil conditioning. Rajasthan, Tamil nadu, Gujarat, Himachal Pradesh, Karnataka, Uttarakhand, Andhra Pradesh and Madhya Pradesh are the major producers.





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