Geology 12 - Unit 2B (PLO B1, B3, B4 & E4)
Earth Materials
1. Read
A. Earth: Then and Now
-“Igneous Rocks and Processes” pp. 33 – 48
-Read to help complete:
Handout ‘Igneous Rocks and Processes’ – 16 MARKS
B. Lab Manual in Physical Geography
-“Rocks Forming Process and the Rock Cycle” pp. 75 – 88
-Handourt: Figure 4.13 (Rock Cycle) – 5 MARKS
-complete according to instruction at bottom of page
C. A. Earth: Then and Now
-“Igneous Rocks and Processes” pp. 33 – 48
-Read to help complete:
Handout ‘Igneous Bodies’ – 10 MARKS
D. Lab Manual in Physical Geography
“Igneous Rocks and Volcanic Hazards” pp. 89 - 108
-Complete: - 5 MARKS
1. Draw/Copy p. 91, Figure 5.1 ‘Intrusive & Extrusive Bodies’
2. Under each term label it as:
i. Extrusive/Intrusive
ii. Concordant/Discordant
e.g. Sill
-Intrusive, Concordant
2. Know
Terms ‘Student Achievement’ p. 40
- be able to define term within context of PLO
- e.g. Bowen’s reaction series = B3
3. Powerpoint(s) – See Toews homework page Unit 2
-Take notes/ Use to complete handouts (see above)
4. Projects See other side
5. Test
One big test for UNIT 2A, 2B & 2C
Projects
A. Bowen’s Reaction Series PLO B3.3, B3.5 – 15 MARKS
i. Go to website
http://www.geologyrocks.co.uk/tutorials/introduction_to_igneous_petrology
-or just TOEWS’ homework page, open ‘3 geology ign rx0.ppt’, play slideshow
and click through until you find full slide image of ‘Bowen’s Reaction Series’ –
double click on this title and ride to the site
ii. Complete Handout ‘Introduction to Igneous Petrology’
B. ‘Description and Interpretation of Igneous Rock Samples Mineral’
PLO B3 – 20 MARKS
i. Turn to Lab Manual p. 105, Question 8, all letters
ii. Choose a partner and together pick 8 Igneous rocks
iii. Together, USE THE LAB MANUAL to complete:
Handout Figure 5.24 ‘Igneous Rocks Worksheet’
 Mistakes are OK, but every space must be filled
iv. Then use the Internet to correct, where possible, the mistakes and create a
perfect answer key.
v. I expect a rough copy and a good copy to be submitted
‘Introduction to Igneous Petrology’ – 15 marks
Feel free to use other paper.
1. 2 marks Explain what is meant when we say igneous rocks are crystalline.
2. 2 marks Explain differentiation and how the process relates to the evolution of
Igneous rocks.
3. 5 marks Use pencil crayons/markers to illustrate the 1,2, 3’s/ A, B, C’s (see
bottom of page 1) of Bowen’s Reaction Series. Do not colour Bowen’s
reaction series, rather create a simple diagram. (Separate piece of paper).
4. 2 marks Give the common names for Na2O, K2O, CaO, FeO and MgO. How
does knowing about these compounds help identify igneous rock?
5. 2 marks Define euhedral and anhedral. What type of diamond would you
rather have and why?
6. 2 marks Explain the difference between Basalt and Gabbro.
‘Igneous Rocks and Processes’ – 16 marks - (3 geology ign rx.ppt)
1. 3 marks
List and briefly explain 3 ways magma forms.
2. 2 marks
Explain briefly the effect of ____ on the melting temperature of rock
a. changes in pressure
b. presence of water.
3. 2 marks
Refer to Bowen’s Reaction series. How do the continuous and
discontinuous branches differ?
4. 4 marks
Draw and label two ways magma is modified.
5. 3 marks
Define each of the following terms:
A. Phaneritic B. Aphanitic
C. Porphyritic
6. a. 1 mark How is the grain size of an igneous rock related to its cooling rate?
7. b. 1 mark What does a porphyritic texture indicate?
8. 1 mark
Assimilation of felsic rocks by mafic magmas is more common than
the reverse. Why?
9. 1 mark
All igneous rock are classified by: (2 things)
‘Igneous Bodies’ – 10 marks – Igneous Bodies Chp 4.ppt)
1. 1 mark
What is a pluton?
2. 2 marks
What is a kimberlite pipe? Explain its relationship to diamonds.
3. 7 marks
DIAGRAM
VISCOSITY
TYPE of
LAVA
e.g.
Felsic/Mafic
LOCATION
COLOUR
Create a table/chart that explains the difference between
Volcanoes: I suggest using your own piece of paper.
.Composite/Strato Lava
Cinder
Shield
Dome
Cone
Basalt
Flood