Mineral resources Flashcards
(19 cards)
How are minerals formed?
-Heat and pressure from hot magma(crystal)
-Formed near the surface
-Form crystals
What is mining?
Mining is a process of digging rocks and minerals from the earth
How is cement made?
-Limestone/chalk and Clay/Shale crushed
-Heated in kiln(Coal or oil fuel)
-Product mixed with gypsum
-Wallah Cement
How much does mineral production contribute to Pakistan;s GDP?
2.8%
Uses of chromite
Gives Hardness and electrical resistance to steel
-Used for bridges and railway carriages
-Used in lining in metallurgical furnaces
-stainless steel
Uses of Iron Ore
Steel
-construction
-transport
Copper
-Electrical wires
-Electrical appliances
-Switches
-Alloys
-Water pipes and tanks
Manganese is used in?
-Dry batteries
-Paints
-Steel
-Flares
-Flash bulbs
Bauxite
-Source of aluminium
-Utensils
-Cans
;etc
Celestite
Found in sedimentary rocks
-Tracer bullets
-Fireworks
-Ceramics
-Paints
Plastics
How do metals help to build what in agriculture?
Line canals
Dykes
Build reservoirs
tractors
gates for barrages
what oil field could help stop the Electricity crisis(BIJLI DE DO)
Thar Coal Fields
Rock salt description
20-100 meters
white/pink
cooking
soda ash
laundries
textile
tanning
Limestone description
cement
bleach
glass
soap
paper
paints
Lime :3
Gypsum
Grey/white/pink
paints
fertilizers
prefabricated construction boards
Plaster of Paris
Clay
China Clay
Fire Clay
Fuller’s Earth
Magnesite
Magnesia(50%)
cement
fertiliser
rayon
paper pulp
chemicals
pharmaceuticals
Sulphur
Sulphuric acid
Paints
explosive material
dyes
rayon
fertilisers
When was Thar coal reserves discovered?
1998
electricity started 20 years later
