Home > Terms > English, UK (UE) > Bench sample
Bench sample
A face or channel sample taken of just that contiguous portion of a coalbed that is considered practical to mine, also known as a "bench;" For example, bench samples may be taken of minable coal where impure coal that makes up part of the geologic coalbed is likely to be left in the mine, or where thick partings split the coal into two or more distinct minable seams, or where extremely thick coalbeds cannot be recovered by normal mining equipment, so that the coal is mined in multiple passes, or benches, usually defined along natural bedding planes.
Other Languages:
Member comments
Terms in the News
Featured Terms
reversible tractor beam
A tractor beam is a technique that uses a light beam to attract one object to another from a distance. The term was originally coined by E. E. Smith ...
Contributor
Featured blossaries
Marouane937
0
Terms
58
Blossaries
3
Followers
The World's Most Valuable Soccer Teams 2014
Marouane937
0
Terms
58
Blossaries
3
Followers
The 10 Most Shocking Historical Events
Browers Terms By Category
- General architecture(562)
- Bridges(147)
- Castles(114)
- Landscape design(94)
- Architecture contemporaine(73)
- Skyscrapers(32)
Architecture(1050) Terms
- General packaging(1147)
- Bag in box(76)
Packaging(1223) Terms
- Cardboard boxes(1)
- Wrapping paper(1)
Paper packaging(2) Terms
- SAT vocabulary(5103)
- Colleges & universities(425)
- Teaching(386)
- General education(351)
- Higher education(285)
- Knowledge(126)
Education(6837) Terms
- Legal documentation(5)
- Technical publications(1)
- Marketing documentation(1)