Why are coastal landscapes different and what processes

Why are coastal landscapes different and what processes cause these Learning differences? Objective: to explain how geology and lithology affects coastal morphology and cliff profiles. Do now: 1. The littoral zone is… 2. The backshore is… + More specifically…. 3. To classify coasts, you can use…. 4. Subaerial processes refer to… 5. Features of coastal plains include… 6. Features of rocky coastlines include… Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Geological structure the physical characteristics of rocks Geology (lithology): refers to the underlying rock type. The local geology and lithology will affect: Faults Strata Dip Bedding of. Deformation rock strata plane Coastal morphology (folds) Joint (vertical cracks) Ø Ø Cliff Profiles Ø Cliff recession 0. 5 -10 cm/year Oasis Academy South Bank 6 th Form 0. 1 -0. 3 cm/year <01. cm/year

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Take it in turns to: a) Geology is… + More specifically… b) Lithology is… c) Characteristics include…. . + More precisely…. . Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Geology and lithology affects: Ø The creation of concordant and discordant coastlines Ø Cliff profiles Ø Coastal recession Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Discordant coastline: when different rock strata intersect the coast at an angle, so rock type varies along the coastline. Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Complete the worksheet Using the map on page 97, identify discordant and concordant coastlines. Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Take it in turns to: a) b) c) d) A discordant coastline is…. . Headlands and bays are common here because… For example…. Overtime these will change by…. This occurs because… Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Concordant coastline: when rock strata run parallel to the coastline. Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Complete the worksheet In three sentences compare landformation on concordant and discordant coastlines. Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Take it in turns to: a) A concordant coastline is…. . b) Coves are found here because… For example… c) The Dalmatian coastline is also a concordant coastline. More specifically…. . Oasis Academy South Bank 6 th Form

Explain the relationship between geology and coastal form along one named Learning Objective stretch of coastline. (6 marks) The question refers to a stretch of coast which must, therefore, be bigger than one coastal feature. Checklist: ü Choose between: concordant or discordant coastlines ü Describe and explain its landforms. ü Use specific examples. ü Link your points to the geology Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Geology and lithology affects: Ø The creation of concordant and discordant coastlines Ø Cliff profiles Ø Coastal recession Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Cliff profiles are affected by local geology and the dip of a rock (the angle of tilt). Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Complete the worksheet: annotate what occurs and why. Ø Does it result in a stable or instable cliff? Ø Does it result in mass movement? Oasis Academy South Bank 6 th Form

Learning To explain how geology and lithology affects coastal morphology & cliff profiles. Objective Draw a sketch of a cliff profile where: 1. 2. 3. 4. 5. There is horizontal strata The rock strata dips inland The rock strata dips steeply towards the sea The rocks dip inland by there are well developed joints The rock strata dips gently towards the sea Oasis Academy South Bank 6 th Form

Study Figure 2, which shows the geology of the coast around Lulworth Cove, Learning Objective Dorset. Explain how recession rates may have been affected by alternating rock strata and geological structure along this concordant coastline. (6 marks) Oasis Academy South Bank 6 th Form

Homework 1. Explain the differences between low-energy and high-energy coastal environments. (6 marks) Be careful not to write two separate parts to your answer, one about low energy and one about high energy. The question requires you to compare the two, so combine statements about both and then the reason(s) for each difference. 2. Explain how lithology can influence rates of erosion at the coast. 3. Explain how geological structure influences the coastal landscape. 4. Distinguish between: Geology and lithology Joints and bedding plane Strata and dip Relief and coastal morphology

DISCORDANT COASTLINE CONCORDANT COASTLINE A discordant coastline is……………………………………………………………………… A concordant coastline is………………………………………………………………… Example of a concordant coastline: southern coast of the……………………, ………………………………………………………………… This is located in…………………………………………………… Coves are a common along this concordant coastlines, such as………………… This is formed due to……. ………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………… The Dalmatian coast is another example of a concordant coastline. Here, offshore Headland Bays are common along discordant coastlines. These are formed due to differential erosion. In other words… ………………………………………………………………………………………………………… Example of a discordant coastline: eastern coast of the Isle of Purbeck. This is located in East Dorset on England’s southern coast. Evidence that the Isle of Purbeck is a discordant coastline: Overtime headland bays will change, with the coastline becoming straighter. This is caused due to………………………………………………………………………………………………………… ………………………………………………………………………………………………………… islands run parallel to the coastline. They are formed due to anticlines and synclines. More specifically……. ………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………. Haff coasts are along created along concordant coastlines. More specifically………………………………………………………………………………………………………………………………… For example…………………………………………………………………

Mircofeatures within cliffs include: >… >… These occur when there is a high density of… Deformation occurs due to… This creates anticlines and synclines. More specifically…. . This also usually results in…

DISCORDANT COASTLINE CONCORDANT COASTLINE

Geology is the underlying rock type. More specifically…. Lithology refers to…. Coastal morphology refers to…. . Strata Deformation and dip Bedding planes and joints LITHOLOGY CHARACTERISTICS Faults