Minerals and Energy Resources, Geog. class 10 cbse

A presentatopn useful to the 10th graders under the cbse stream.

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2. What is Mineral ?
•Mineral is a homogenous , naturally
occurring substance with a definable
internal structure .
•It is found in varied forms in natural,
ranging from the hardest diamond to
the softest talc .
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3. Importance of minerals
•They are indispensable part of our
lives.
•Life processes can’t occur without
minerals.
•The food we eat contains minerals.
•Cars , buses are manufactured from
minerals.
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4. Classification of minerals
Metallic

Ferrous Non-ferrous Precious
(contain iron) e.g. copper , e.g. gold ,
e.g. iron ore , lead & tin. platinum ,
manganese. & silver.


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5. Non-metallic Energy minerals

e.g. mica , salt , Coal petroleum
Granite , limestone . Natural gas .

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6. Occurrence of minerals
(i)Igneous & metamorphic rocks
(ii) Sedimentary rocks
(iii) Weathered rocks
(iv) Alluvial deposits
(v) Ocean water


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7. Ferrous minerals
(i)Iron ore –
- Backbone of industrial development.
- Magnetite is the finest ore & has 70% iron.
- Hematite ore has 50 -60 % iron content .
- Limonite ore has 40 -60 % iron content .
- Siderite ore has 40 -50 % iron content .
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8. Production of iron ore
showing state wise share
Karnataka
26%
Orissa
25%
Chattisgarh
19%
Goa
17%
Jharkhand
12%
Others
1%
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9. (ii) Manganese –
-Used in manufacturing of steel & ferro -
manganese alloy , bleaching powder , insectides
& paints .
- 10 kg manganese required to manufactured 1
tone of steel .
- Largest producer – Orissa .
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10. Production of manganese
showing state wise share
Orissa
33%
MP
22%
Karnataka
15%
Others
30%
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11. Non – ferrous minerals
(i)Copper –
- Production of cu is critically deficient in India .
- Cu is malleable , ductile & a good conductor .
- Used in electrical cables & chemical industries .
- Malghat mines in MP produce 52% of copper .
- Khetri mines in Rajasthan is also famous for
cu production .

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12. (ii) Bauxite –
- It is a clay like substance .
- Bauxite deposits formed by decomposition of
rocks rich in aluminium silicates .
-Aluminium combines the strength of metals with
extreme lightness & with good conductivity &
malleability.
-Largest producer – Orissa (45%)
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13. Production of copper & bauxite
MP
58%
Rajasth
an
42%
Copper
Orissa
45%
Gujarat
17%
Jharkha
nd
14%
Mahara
shtra
11%
Others
13%
Bauxite
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14. Non-metallic minerals
(i)Mica –
- Made up of a series of plates or leaves.
-It can be clear, black ,green or brown.
- Mica deposits r found in the northern edge of
Chota nagpur plateau.
-Koderma Gaya – Hazaribagh belt of
Jharkhand is the leading producer.
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15. Rock mineral
-Limestone
-Found in association with rocks composed
of calcium carbonates or calcium &
magnesium carbonates.
-Found in sedimentary rocks.
-Raw material for cement industry.
-Essential for smelting iron ore in the blast
furnace.
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16. Production of limestone
M.P
15%
RAJASTHAN
15%
GUJRAT
11%
TAMILNADU
9%
ANDHRA
PRADESH
16%
OTHERS
34%
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18. Conservation of minerals
-Minerals can be conserved in by the following
measures:
· Use of improved technologies to allow use of
low grade minerals at low costs
· Using substitutes
· Use of scrap metals
· Recycling of metals is good way in which the
mineral resources can be conserved.
-They can be used in a judicious manner
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19. Energy resources
Understanding energy resources involves
considering all types of energy source from
various scientific and technological standpoints,
with a focus on the uses, limitations and
consequences of using energy that is available
to humanity.
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20. Conventional sources of energy
(i)Coal –
- Used for power generation , to supply energy- to
industry as well as for domestic needs .
- India is highly dependent on coal .
- Formed due the compression of plant material over
million of years .
- Lignite is a low grade brown coal , which is soft
with high moisture content .
- Coal that has been buried deep & subjected to
increased temperaturesis bituminous coal .
- Anthracite is the highest quality hard coal .
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21. (ii) Petroleum –
- Major energy source in India after coal .
- Provides fuel for heat , lighting & manufacturing
industries .
- Also found in fault traps between porous & non-
porous rocks .
-63% of India’s petroleum production is from
Mumbai High .
- Assam is the oldest oil producing state .
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22. (iii) Electricity –
-It is mainly generated by 2 ways-
~ Hydro electricity is generated by fast flowing
water .
~ Thermal electricity is generated by using coal,
petroleum & natural gas. There r 310 power
plants in India.


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25. Non – conventional sources of
energy
(i) Nuclear & atomic energy
- Obtained by altering the structure of atoms.
-Uranium & thorium r used for generating atomic or
nuclear energy .
(ii) Solar energy
-Solar Energy is the energy received from the sun that
sustains life on earth
-For many decades solar energy has been considered
as a huge source of energy and also an economical
source of energy because it is freely available.
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26. (iii) Wind power
-Wind power is produced by using wind
generators to harness the kinetic energy of wind.
-It is gaining worldwide popularity as a large
scale energy source .
(iv) Biogas
-It is a mixture of methane and carbon dioxide it
is a renewable fuel produced from waste
treatment.

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27. - Biogas is best used directly for cooking/heating,
light or even absorption refrigeration rather
than the complication and energy waste of
trying to make electricity from biogas.

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28. Conservation of energy resources
-Choose energy efficient appliances when making
new purchases.
-Do not leave appliances on standby.
-Cover your pots while cooking.
-Recycle your organic waste.
-Reduce the number of miles you drive by
walking, biking, carpooling or taking mass
transit wherever possible.
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29. Thank you
Pl mail : [email protected]


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