Zusammenfassung der Ressource
Geology
- principle of uniformitarianism
- This is when processes that are happening now are used to find out the
past
- for example: transport in water leads to rounded pebbles. So if we
found a bed of rounded pebbles we would know there was a river
there
- Catastrophism
- Geological Processes that happen over very short periods of time.
For example: Volcanism Meteorite, Impacts, Earthquakes
- Gradualism
- Geological Processes that happen over very long periods of
time. Erosion Oceans getting wider Mountain Building
- Forming
Minerals
- From the Crystallisation from
magma or lava Igneous Minerals
inside a lava flow or batholith
- Quartz, Mica, Feldspar
- From Precipitation from water as it
dribbles through gaps in rocks Limescale
on your kettle or a stalactite or binding a
sandstone
- Calcite
- From the crystallisation from hydrothermal
fluids that travel through faults -
weaknesses = veins Like the setting of a
Jelly as it cools.
- Galena,
Haematite
- Some Recrystallise in the formation of a
metamorphic rock At a destructive
Continental-Continental collision
- Calcite, Garnet
- Some Crystallise from evaporating sea-water
Imagine you are at the beach and just been
for a swim As you dry naturally, you have a
thin layer of salt on you
- Halite
- predicting volcanoes
- gas emissions- magma is
moving around underground
releasing gas
- ground temperature-
magma is moving
underground
- acidity level in streams-
Sulphur is being released
as magma is moving
around.
- Bulges on volcano side-
Magma is moving up to
surface
- Magmatic Quakes- Magma
moving around cracking rocks
to create space