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Relative Dating Foldable.notebook
1
May 02, 2012
Geologic Principles
Learning Target:I can create a foldable about the geologic principles that are used to relatively date rock sequences.
Relative Dating Foldable.notebook
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May 02, 2012
Geologic Principles Foldable
• You will need 3 pieces of paper to make your foldable.• Stagger the papers out so that you have a 1inch tab for each different color.• Hold the 3 papers together staggered and fold in half• Staple the papers along the binding
Relative Dating Foldable.notebook
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May 02, 2012
SixTab Foldable Booklet
Principle of Crosscutting
Principle of Baked Contacts
Principle of Inclusions
Principle of Superposition
Principle of Original Continuity
Principle of Original Horizontality
Relative Dating Foldable.notebook
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May 02, 2012
Principle of Superposition
This principle states that the oldest rock layers are on the bottom.
ABC
youngest
oldest
Principle of Crosscutting
Principle of Inclusions
Principle of Baked Contacts
Principle of Original Horizontality
Principle of Original Continuity
1st Flap
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Principle of Superposition – This principle states that The oldest rock layers are on the bottom.
http://faculty.icc.edu/easc111lab/labs/labf/prelab_f.htm
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Su
perp
osit
ion
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Principle of Baked Contacts
Principle of Crosscutting
Principle of Original Horizontality
Principle of Inclusions
Principle of Original Continuity
This principle states that if one geological feature cuts across another, the feature that has been cut is older.
ABC
D Fault
ABC
Dintrusion
2nd Flap
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Principle of Crosscutting
Intrusionhttp://faculty.icc.edu/easc111lab/labs/labf/igneousintrusion/igneousintrusion.html
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May 02, 2012
Principle of Inclusions
This principle states that if an igneous rock intrusion such as a dike contains xenoliths (rock fragments) the rock fragments must be older.
ABC
Dintrusion..
xenolith
Principle of Original Horizontality
Principle of Original Continuity
Flap 3
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May 02, 2012
Principle of Inclusions
Xenoliths
xenoliths
http://faculty.icc.edu/easc111lab/labs/labf/lrg_scale_inclusion/lrgscaleinclusions.html
http://faculty.icc.edu/easc111lab/labs/labf/sm_scale/sm_scale.html
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May 02, 2012
An igneous rock intrusion"bakes" (metamorphoses) surrounding rocks. the rock that has been baked is older than the intrusion.
BA C
Principle of Baked Contacts
Principle of Original Horizontality
Principle of Original Continuity
4th Flap
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Principle of Baked Contacts
Orange zone is baked. Lava flow above it.
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May 02, 2012
Principle of Original Horizontality
Principle of Original Continuity
This principle states that sedimentary rock layers are formed in relatively flat layers. Folding and tilting of layers occur after the rock layers form. A
B
Folding is younger
5th Flap
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Principle of Original Horizonality
http://faculty.icc.edu/easc111lab/labs/labf/foldingrocks/foldingrocks.html
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May 02, 2012
Principle of Original Continuity
This principle states that sedimentary rocks are deposited in large continuous sheets.
Flap 6
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May 02, 2012
Principle of Original Continuity
http://faculty.icc.edu/easc111lab/labs/labf/eroded_canyon/erosioncanyon.html
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May 02, 2012
Let's Review.........how is making a PB and J sandwich like relative dating techniques?
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May 02, 2012
http://www.wwnorton.com/college/geo/egeo2/content/animations/10_4.htm
Disconformity
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May 02, 2012
http://www.wwnorton.com/college/geo/egeo2/content/animations/10_4.htm
Angular Unconformity
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Nonconformity
http://www.wwnorton.com/college/geo/egeo2/content/animations/10_4.htm
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Learning Target 1Copy into your composition book
Learning Target PreAssess Big Ideas Post
Assess
I can apply geologic principles in order to correctly sequence (relative date) rock layers
I can do that *I can do that with review ? can't do that
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A
B
C
Which is older? Based on which principle?
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ABCD
2.
Which layer/feature is youngest? Based on which principle?
canyon
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BC
Dfault
A
3.
Which layer/feature is youngest?Based on which geologic feature?
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May 02, 2012
A
B
C
D
E
4.
A. Which layer is older B or D? Based on which geologic principle?
B. In the diagram above, which is older? D the intrusion or E the xenolith? Based on which principle?
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May 02, 2012
AB C
D
6.
Which layer/feature is youngest? Based on which geologic principle?
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May 02, 2012
A
B
Which came first layers A and B or folding?Based on which principle?
7.
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May 02, 2012