Lesson 4 Flashcards
What is the geology of Robin Hood’s Bay?
sedimentary rocks, after the jurassic period the earth moved and pushed layers of rock upwards forming a dome shape.
At Robin Hoods bay, what has happened to the dome?
The top has been eroded leaving a rocky platform exposed. At low tides curved ridges and troughs are visible which reflect the different rates of erosion
How did Robin Hoods Bay form?
soft rocks erode away quicker creating an inlet of the bay, on top of the soft rock are layers of harder sandstone which form rocky sea cliffs north and south of the bay
How do the differences in rock type influence Robin Hood’s Bay?
Steep slopes and cliffs correspond to the more resistant rocks where as gentler slopes are formed by shake and clay
What is the geology of the Holderness coast?
Made up of sedimentary rock (chalk) fastest eroding coastline in Europe. Also covered in glacial till (soft clay)
What are the 2 main reasons for the coastline being eroded so rapidly?
Strong prevailing winds moving material south.
Cliffs made of clay (soft rock) eroded rapidly
What is the geology of St Bees?
sandstone near surface which reflects the underlying rock and also produces high vertical cliffs. unprotected cliffs are retreating. Glacial till is also present.
What is the geology of the Jurassic coastline?
Various
What do hard rocks form along the Jurassic coastline?
cliffs
What do soft rocks form along the Jurassic coastline?
landslides
What is the geology of the Cornish Coast?
granite (igneous)
What landforms are found at the Cornish Coast?
Rocky cliffs carved into pillars
What exists at the Dalmatian coast?
An active fault line African plate sub-ducting below the Eurasian plate
What does Southern Chile have a lot of?
volcanoes and earthquakes, Nazca and Antarctic plates
