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Rock and Minerals lesson

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Aidan Bigham

on 18 October 2018

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Transcript of Rock and Minerals lesson

Aidan Bigham
Rock and Minerals
What are the diagnostic properties of minerals?
Diagnostic properties of minerals
What is a mineral?
How do you decide what each type of mineral is?
Orthoclase Feldspar
Plagiocase Feldspar
Any naturally-occuring, homogenous solid that has a definite chemical composition and a distinctive internal crystal structure
Streak Colour
Other (density, acid test, luminescence etc)
In groups - list each mineral - research and write up properties to decide how each mineral can be named
A table is on the board to show what you will fill out
What is a rock?
Diagnostic Properties of Rocks
What are the three different types of rock and ways of telling them apart?
Group these rocks into sedimentary, igneous or metamorphic
Granite, rhyolite, conglomerate, marble, hornfels, basalt, gabbro, sandstone, quartzite, slate, phyllite, greywacke, siltstone, mudstone, obsidian, pumice, argillite, diorite, schist, gneiss, andesite, claystone, limestone, coal, ignimbrite, chert
Now within each rock group how can you tell the differences between igneous, metamorphic and sedimentary?
Rocks in NZ
In groups of 3-4
Draw New Zealand on a piece of paper
An Andesitic Volcano,
A Rhyolite dome
A Caldera
A major glacier
A major earthquake
On your picture of NZ,
Plate Tectonics
Aidan Bigham
On a piece of paper
Sketch a convergent plate boundary in a New Zealand Setting
(10 minutes)
Include as much information as you can
Your diagram should include:
Descending lithosphere plate (oceanic crust and upper mantle)
Shallow-intermediate-deep earthquakes defining Benioff Zone
Rising magma in overlying mantle wedge
Continental crust with arrow for relative movement
Relative sizes of crusts
Volcanoes on continental crust
Oceanic trench
Arrows showing compression
Accretionary wedge
Labels of asthenosphere and lithosphere
There are 3 types of plate boundaries
Name them, with an example of each
In your groups, list as many evidences that support Continental Drift as you can (3 minutes)
What are the main differences between oceanic and continental crust (2 minutes)
Explain the origin of the following geological features (5 minutes)
Southern Alps
Taupo volcanic Zone
How are tectonic plates monitored? (2 minutes)
How many earthquakes have occurred in New Zealand in the last week (magnitude larger than 2.5).
Canterbury Earthquake
These are your tasks this week
Why have they occurred at these places?
I'll fill this out when needed
Richter scale vrs
Modified Mercalli Scale
How earthquakes happen
Which do you think would have the most active volcanoes on them?
How do plate tectonics relate to life?
Basalt, granite, ignimbrite
Greywacke, limestone, coal
Gneiss, marble, schist
Sketch the plate boundary, the directions of the plates and the names of the plates
Place on your map where you would find..
Why are there so many different characteristics between minerals?
Do the science kits at kmart make real minerals (the grow your own pack)?
Where do Minerals come from?
Full transcript