Quarry

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Crushed limestone quarry near Bellefonte, Pennsylvania
Crushed limestone quarry near Bellefonte, Pennsylvania

A quarry is a type of open-pit mine from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone. Quarries are usually shallower than other types of open-pit mines.

A quarry is often mistaken for other types of open-pit or open-cast mines such as borrow or gravel pits.

Types of rock extracted from quarries include:

Quarries in level areas often have special engineering problems for drainage. The Coquina Quarry is excavated to more than sixty feet (18 meters) below sea level. To reduce surface leakage a moat, lined with clay, was constructed around the entire quarry. Ground water that seeps into the pit is pumped up into the moat.

Many quarries fill with water to become ponds or small lakes after abandonment for mining purposes. Others have become landfills.

Construction aggregate quarry near Adelaide, South Australia

Coquina Quarry sixty feet below sea level, Conway, South Carolina

A dimension stone quarry.

A small cinder quarry.

An abandoned limestone quarry.

Former quarry in Kraków, Poland

Portland Stone quarry on the Isle of Portland, England.

Basalt quarry on the Holyoke Range of Massachusetts.


Wikimedia Commons has media related to:
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Mining techniques
Surface mining: Open-pit mining, Quarrying, Strip mining, Placer mining, Mountaintop removal mining
Sub-surface mining: Drift mining, Slope mining, Shaft mining, Hard rock mining, Borehole mining, Room and pillar mining, Longwall mining, Retreat mining
 This geology article is a stub. You can help Wikipedia and WikiProject Geology by expanding it.
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