Download Topic Description Continental Crust Thicker and less dense. Doesn`t

Topic
Description
Green
revision
guide
Continental Crust Thicker and less dense.
Doesn’t sink
Very old 3-4 billion years old
Pg 3
Oceanic Crust
5-10 km thin plates
Sinks beneath mantle
Forms constantly at constructive plate boundaries
Pg 3
Fold MountainsCase study Alps
farming, hydroelectric power, mining, tourism and how people
adapt to limited communications, steep relief, poor soils.
Pg 4 & 5
Volcanic eruption A case study of a volcanic eruption – its cause; primary and
– Montserrat
secondary effects; positive and negative impacts; immediate and
1997
long term responses. Monitoring and predicting volcanic
eruptions.
Pg 7
Supervolcanoes
Pg 8
The characteristics of a supervolcano and the
likely effects of an eruption.
Earthquakes case Rich country- L’Aquila , Italy, 6th April 2009, 6.3 on the Richter scale Pg 10
studies
Poor Country-Kashmir, Pakistan, 8th October, 2005, 7.6 on the
Richter scale
Tsunamis- Case
study
Indian Ocean Tsunami in 2004 (Boxing Day Tsunami ), 9.1, Almost
300,000 people killed, Indonesia worse hit 230,000 killed.
Pg 11
Key terms
Earthquakes
epicentre
The point on the Earth’s surface
straight above the focus
focus
The point in the Earth where the
earthquake starts.
shock
waves
They cause damage. There are two
types of seismic wave - p-waves
and s-waves.
Richter
Scales
This measures the amount of
energy released by an
earthquake. Logarithmic scale
Mercalli
Scales
Measures the effects of an
earthquake using observations.