key term : limestone
- Created by: michelle
- Created on: 17-05-13 19:15
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- limestone: key terms
- limestone pavement
- area of flat exposed land
- carboniferous limestone
- formed suring lower carboniferous geological period
- 300 million years ago
- formed suring lower carboniferous geological period
- sedimentary
- formed from living things
- also bits of rock on rivers or sea beds
- formed from living things
- strata
- thin layer of rock (few mm thinck)
- bedding plane
- a line separating 2 beds
- joints
- lines of weakness
- impermeable
- water cannot soak in
- permeable
- water can soak in
- dry valley
- valley eroded by a river
- clint
- block of weathered limestone
- gryke
- gap between the clints
- stalagmite
- in caves only
- column of limestone growing up
- in caves only
- stalactite
- column of limestone growing down from the roof
- caves only
- column of limestone growing down from the roof
- limestone pavement
- block of weathered limestone
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