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 Quarry is a type of open pit mine from which rock or
minerals are extracted.
 Quarries are generally used for extracting
construction materials, such as dimension stone,
rubble stone, fine and coarse aggregates etc.
 Quarries are usually shallower than other types of
open-pit mines.
By Argaw Tarekegn 3
Crushed Stone
Production
By Argaw Tarekegn 4
The following stages are applied in production:
 Stripping and clearing of overburden
 Drilling of boreholes in rock and charging with
explosives
 Blasting operations
 Drilling of boreholes in oversize stone, blasting
operations
 Loading of stone onto transport vehicles and
hauling to a crusher plant
 Screening of crushed stone in size fractions
 Storage of crushed stone size fractions (Loading
and hauling of crushed stone and artificial sand to
a construction site in size fraction)
Dimension Stone
Production
Processing stages applied
in production:
 Drilling of closely spaced
boreholes in rock for
subsequent separation of
large lumps of stone from
the massif.
 Breaking of these lumps
into standard products or
similar-size stones.
 Treatment of stone
surface ,dressing
,grinding and polishing.
 Loading and hauling of
stone.
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Noise Pollution
Blasting
Transporting
From quarry to
Crusher
crushing
Transporting
The product
Noise
pollution
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Damage to Biodiversity
 Biodiversity essentially refers to the range of living
species, including fish, insects, invertebrates, reptiles,
birds, mammals, plants, fungi and even micro-
organisms.
 Quarrying carries the potential of destroying habitats and
the species they support
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Effect on landscape
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Effect on landscape ctd
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Other effects(failure of electric poles)
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Quarry site for aggregates for concrete production
along the old road
i. manual production
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ii. Production using crushers
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Impact due to burning of tires
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pond in the quarry
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3.3.2 Quarry Site for stone production along new road
Effect on biodiversity/landscape
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Pond at the quarry site
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quarry.ppt