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Geography > Mineral Resources > Flashcards

Mineral Resources Flashcards

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1
Q

define minerals

A

minerals are natural substances of organic or inorganic origin with definite physical and chemical properties

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2
Q

organic non metallic minerals

A

fossil fuels/ mineral fuels like coal and petroleum

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3
Q

inorganic non metallic minerals

A

mica, limestone, graphite

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4
Q

characteristics of minerals

A
  1. not evenly distributed over space
    2.inverse relationship with quality and quantity
  2. exhaustible over time
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5
Q

why are minerals exhaustible over time?

A

they take a long time to develop geologically and cannot be replenished immediately when needed. they have to be conserved and do not have the second crop

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6
Q

varieties of iron

A
  1. haematite
  2. magnetite
  3. limonite
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7
Q

haematite

A
  1. red ore
  2. 60-70% pure iron
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8
Q

haematite found in

A

Odisha, Jharkand, Chattisgarh, Karnataka, Mahrashtra, Goa

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9
Q

magnetite

A
  1. dark brown, blackish
  2. black ore
  3. more than 70% iron
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10
Q

magnetite found in

A

TN and karnataka l

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11
Q

limonite

A
  1. yellow to light brown
  2. 35-50% of iron
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12
Q

limonite found in

A

iron stone group in Raniganj coalfield
Garhwal, Mirzapur, Kangra valley

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13
Q

uses of iron ore

A
  1. 90% of iron ore is used to make steel(construction, automobiles)
  2. powdered iron is used to make magnets, high frequency cores, auto parts, catalysts
  3. radioactive iron used in medicine as tracer elements, biochemical, and metallurgical research
  4. iron blue is used in paints, printing inks, plastics, cosmetics, artist colours, laundry blue
  5. black iron oxide used as pigment in polishing compounds
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14
Q

how are iron ore deposits found in india

A

occur as hill masses and are easily accessible. found near coal, dolomite, limestone, manganese producing areas

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15
Q

distribution of iron

A
  1. chattisgarh (Dalli, Bailadilla, Rajhara)
  2. Jharkand (Singhbhum, Palamau)
  3. Odisha (HAEMATITE- Keonjhar, Mayurbhanj, Sambalpur)
  4. Karnataka(MAGNETITE/HAEMATITE- Bababudan hills, Bellary, Hospet)
  5. Goa(LIMONITE/SIDERITE)
  6. Rajasthan
  7. Tamil Nadu
  8. Andhra
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16
Q

which place in karnataka has most iron ore

A

Kudremukh- having 1000 million tonnes

17
Q

main iron exporting ports in india

A

Mormugao, Vishakapatnam

18
Q

manganese

A

black
hard
natural oxide
important for smelting of iron ore and ferro alloys u

19
Q

uses of manganese

A
  1. used in iron and steel industry
  2. manufacture of black enamel in chemical industries
  3. alloys
  4. dry cell batteries
  5. essential for plant growth
  6. action of enzymes in humans
  7. regulates blood sugar levels and immune system
20
Q

why is manganese used in iron and steel industry

A

it is used to make steel tough and resistant to rusting. w

21
Q

why is manganese used in chemical, electrical industries

A

used to make black enamel in chemical industries, and used to make bleaching powder in electrical and glass industries

22
Q

why is Mn needed for plants

A

reduction of nitrates in green plants and algae

23
Q

why is Mn needed for humans

A
  1. aids enzymes
  2. aids metabolism
  3. regulate blood sugar levels
  4. helps immune system
  5. reproduction
  6. bone development
24
Q

distribution of manganese

A
  1. Jharkand(Singhbhum, Palamau, Chaibasa)
  2. Odisha (Keonjhar, Mayurbhanj, Koraput, Bonai)
25
Q

copper

A

important non ferrous metal
earliest metal used by man
occurs as sulphides, oxides, carbonates u

26
Q

uses of copper

A
  1. used for making electric wires because it is a good conductor of electricity, malleable, ductile
  2. automobile and defence industries
  3. alloyed with iron and nickel to make stainless steel
  4. alloyed with zinc to form brass
  5. alloyed with tin to make bronze
  6. shipbuilding industry
27
Q

distribution of copper

A
  1. Madhya pradesh (Balaghat, Betul, Jabalpur)
  2. Rajasthan (Khetri belt in Jhunjunu, Dariba, Ajmer, Bharatpur)
  3. Jharkand (Singhbhum)
28
Q

bauxite

A

oxide of aluminium
mainly found in tertiary deposits
associated with laterite rocks

29
Q

uses of bauxite

A
  1. aircraft and automobile industry
  2. main source of aluminium
  3. used in electrical equipment industry
  4. makes headlight reflectors and mirrors in telescope.
30
Q

why is bauxite used in aircraft and automobile industry

A

it is the main source of aluminium, which is lightweight, strong, and rust-resistant

31
Q

largest integrated aluminium plant in India

A

Renukoot in Uttar Pradesh, getting supply from Amarkantak plateau and Ranchi

32
Q

distribution of Bauxite

A
  1. Madhya Pradesh (Amarkantak plateau, Jabalpur)
  2. Odisha (Kalahandi, Sambalpur)
  3. Jharkand (Palamau, Ranchi, Dumka, Gumla)
  4. Karnataka (Belagavi)
  5. TN (Salem, Nilgiri)

Geography (13 decks)

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