4.3 A Flashcards
What is the rock type (geology) like on concordant coastline?
There is only one type of rock type which is hard rock.
Features that are found on a concordant coastline?
A concordant coastline has the same type of rock along its length. Concordant coastlines tend to have fewer bays and headlands.And there rock is LIMESTONE (hard).
What is the rock type on a discordant coastlines?
Soft rock and hard rock, such as a discordant coastline.
Examples of concordant and discordant coastlines?
An example of discordant coast:
Headlands and Bays formation
Headlands are formed when the sea attacks a section of coast with alternating bands of hard and soft rock.
The bands of soft rock, such as sand and clay, erode more quickly than those of more resistant rock, such as chalk. This leaves a section of land jutting out into the sea called a headland. The areas where the soft rock has eroded away, next to the headland, are called bays.
Geology (rock type) like on a concordant coastline?
A concordant coastline has the same type of rock along its length. Concordant coastlines tend to have fewer bays and headlands.
Features found on a discordant coastline?
Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines.
What are joints and faults?How do they affect erosion?
A joint is a fracture along which no movement has taken place, usually caused by tensional forces.A fault is a fracture or break in the rock along which movement has taken place.They affect erosion by
Different between hard and soft rocks?Give examples
Soft rock is easily eroded away, where as hard rock takes longer to break down.
Features found on a concordant coastline
Concordant coastlines tend to have fewer bays and headlands than discordant coastlines.