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Relative Dating Foldable.Notebook May 02, 2012 Relative Dating Foldable.notebook May 02, 2012 Geologic Principles Learning Target: I can create a foldable about the geologic principles that are used to relatively date rock sequences. 1 Relative Dating Foldable.notebook 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 2 Relative Dating Foldable.notebook May 02, 2012 Six­Tab Foldable Booklet Principle of Superposition Principle of Cross­cutting Principle of Inclusions Principle of Baked Contacts Principle of Original Horizontality Principle of Original Continuity 3 Relative Dating Foldable.notebook May 02, 2012 1st Flap youngest This principle states that the oldest C rock layers are on the bottom. B A oldest Principle of Superposition Principle of Cross­cutting Principle of Inclusions Principle of Baked Contacts Principle of Original Horizontality Principle of Original Continuity 4 Relative Dating Foldable.notebook May 02, 2012 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 5 Relative Dating Foldable.notebook May 02, 2012 Superposition 6 Relative Dating Foldable.notebook May 02, 2012 2nd Flap C Fault This principle states D B C A D that if one geological B intrusion feature cuts across A another, the feature that has been cut is older. Principle of Cross­cutting Principle of Inclusions Principle of Baked Contacts Principle of Original Horizontality Principle of Original Continuity 7 Relative Dating Foldable.notebook May 02, 2012 Principle of Cross­cutting Intrusion http://faculty.icc.edu/easc111lab/labs/labf/igneousintrusion/igneousintrusion.html 8 Relative Dating Foldable.notebook May 02, 2012 Flap 3 This principle states that if an igneous rock intrusion such as a dike contains xenoliths (rock fragments) the rock fragments must be older. C B A .. D intrusion xenolith Principle of Inclusions Principle of Original Horizontality Principle of Original Continuity 9 Relative Dating Foldable.notebook 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 10 Relative Dating Foldable.notebook May 02, 2012 4th Flap An igneous rock intrusion "bakes" (metamorphoses) B surrounding rocks. the A C rock that has been baked is older than the intrusion. Principle of Baked Contacts Principle of Original Horizontality Principle of Original Continuity 11 Relative Dating Foldable.notebook May 02, 2012 Principle of Baked Contacts Orange zone is baked. Lava flow above it. 12 Relative Dating Foldable.notebook May 02, 2012 5th Flap This principle states that Folding is younger sedimentary rock layers are formed in relatively flat layers. Folding and B tilting of layers occur after the rock layers form. A Principle of Original Horizontality Principle of Original Continuity 13 Relative Dating Foldable.notebook May 02, 2012 Principle of Original Horizonality http://faculty.icc.edu/easc111lab/labs/labf/foldingrocks/foldingrocks.html 14 Relative Dating Foldable.notebook May 02, 2012 Flap 6 This principle states that sedimentary rocks are deposited in large continuous sheets. Principle of Original Continuity 15 Relative Dating Foldable.notebook May 02, 2012 Principle of Original Continuity http://faculty.icc.edu/easc111lab/labs/labf/eroded_canyon/erosioncanyon.html 16 Relative Dating Foldable.notebook May 02, 2012 Let's Review.........how is making a PB and J sandwich like relative dating techniques? 17 Relative Dating Foldable.notebook May 02, 2012 Disconformity http://www.wwnorton.com/college/geo/egeo2/content/animations/10_4.htm 18 Relative Dating Foldable.notebook May 02, 2012 Angular Unconformity http://www.wwnorton.com/college/geo/egeo2/content/animations/10_4.htm 19 Relative Dating Foldable.notebook May 02, 2012 Nonconformity http://www.wwnorton.com/college/geo/egeo2/content/animations/10_4.htm 20 Relative Dating Foldable.notebook May 02, 2012 Learning Target 1 Copy into your composition book Pre Post Learning Target Big Ideas Assess 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 21 Relative Dating Foldable.notebook May 02, 2012 Which is older? Based on which principle? C B A 22 Relative Dating Foldable.notebook May 02, 2012 2. D C canyon B A Which layer/feature is youngest? Based on which principle? 23 Relative Dating Foldable.notebook May 02, 2012 3. D fault C B A Which layer/feature is youngest? Based on which geologic feature? 24 Relative Dating Foldable.notebook May 02, 2012 4. C D B A E 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? 25 Relative Dating Foldable.notebook May 02, 2012 6. D B C A Which layer/feature is youngest? Based on which geologic principle? 26 Relative Dating Foldable.notebook May 02, 2012 7. B A Which came first layers A and B or folding? Based on which principle? 27 Relative Dating Foldable.notebook May 02, 2012 28.
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