Practical 3: Igneous and metamorphic rocks

Practical 3: Igneous and metamorphic rocks

Section 1: Common  minerals

In this section we will take a look at some of the minerals that are common in sedimentary rocks.  Look at the questions in section 1 and answer based upon the minerals you see below.

Mineral 1 (above)

 

Mineral 2 (above)

 

Mineral 3 (above)

Mineral 4 (above)

Mineral 5 (above)

Section 2: Mafic Igneous rocks

 

Basalt

Gabbro

 

Vesicular basalt


Pillow Lavas forming

Section 3: Intermediate igneous rocks

Andesite

Section 4: Felsic igneous rocks and continental volcanism

 

Granite. Click HERE for a full-screen 3D model.

Click on the map above to open the geological tour of Brisbane.

 

Click on the map above to open the geological tour of Brisbane. Go to “Point Lookout” for this section on the eastern part of the map.

Volcanic spindle bomb

Brisbane Tuff with a plant embedded in it.  We “retrieved” this from the worksite when they were digging drainage trenches in the Great Court at UQ.

Brisbane Tuff Gigapixel image.  Click on the red circles to view magnified images.

Part 2 Metamorphic rocks

Section 5 Regionally metamorphosed rocks


Folded phyllite

Schist

Schist gigapixel image


Video of schist.  Look at the surface as it moves, you will see it catch the light.  Does this help you work out what minerals may be present?

3D model of a gneiss.  

Gniess gigapixel images.  Click to open and click red circles to view magnified images.  This is a different gneiss from the 3D model but shares similar characteristics.

Section 6: Contact metamophism
3D model of hornfels and the “pink rock” which it is in contact with.

Gigapixel image of hornfels and the “pink rock” (click on circles for higher resolution images)

 

 

Gigapixel and 3D imagery field and laboratory science