HIGHER GEOGRAPHY LITHOSPHERE CORE

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LITHOSPHERE CORE
The next few slides will show you about different
rock types and illustrate their characteristics
and how they influence scenery.
There are 3 types of rock IGNEOUS SEDIMENTARY MET
AMORPHIC
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Igneous rocks come from melted rock material
called magma/ lava. Examples are GRANITE and
BASALT. These are all hard, resistant rocks, and
form high ground as they do not wear away easily.
Sedimentary rocks are made from layers of
sediment. They are grainy and crumbly and may
contain fossils. Most form low ground as they can
be fairly easily eroded. Examples are LIMESTONE,
SANDSTONE, CLAY and CHALK.
Metamorphic rocks are hard and very variable!
They have been altered from other kinds of rock
by heat and/or squeezing. Examples of metamorphic
rocks are SLATE and MARBLE.
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The map here shows the distribution of the
different types of rocks in the UK. Take a copy
of this map and stick it into your
jotter. Colour the three rock types
differently-do this at home!
SEE NEXT SLIDE
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Compare your map to a relief map in the Atlas.
What do you notice about the position of the hard
and soft rocks?
Discuss your findings in class and in a sentence
or two, explain what the Tees- Exe line
represents.
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QUESTION- When is erosion not erosion? ANSWER-
when it is weathering!
Erosion is when the material worn from the land
gets removed far from the site of
activity. Weathering is when the particles stay
close to the area and form specific features!
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INTRODUCTION
MASS MOVEMENTS These are the different ways our
three rock types can respond to the processes
that wear them down. There are different types
which you need to learn.
Work your way through the tasks on the next set
of slides, then go home and LEARN THESE NOTES UP!
You will need the Course booklet, pages 3 10.
END