Exam 4 Review Winter 2011

Exam 4 Review - Chapter 27 Earths Interior Exam 4 Review Review Evidences of current model Direct Observations(Drilling Mantle Inclusions

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Exam 4 Review Chapter 27– Earth’s Interior s Review Evidences of current model Direct Observations (Drilling, Mantle Inclusions) Meteorites Seismic Waves (Shadow Zones) Magnetic Field Compositional Model of Earth Structure Mechanical Model of Earth Structure Quiz: The density of the earth’s interior is 1. less than the average density. 2. equal to the average density. 3. greater than the average density. 4. less than the density of the crust. Quiz: Changes in earth’s layers in both the compositional & mechanical models can be understood in terms of 1. Different kinds of matter change state at different temperature and pressure. 2. Dense matter sinks to the center. 3. Both 1 & 2
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The mechanical model of interior Asthenosphere sometimes called the low-velocity zone because of the drop in seismic wave velocity Quiz: There is a shadow zone for S seismic waves. Why? a) S waves cannot travel more than half the diameter of the earth and therefore can’t reach the other side of the earth. b) S waves cannot travel through the mantel of the earth. c) S waves cannot travel through the liquid iron outer core. d) S waves cannot travel through the solid iron inner core. e) S waves reflect and refract at the different boundaries in the interior resulting in regions where there are no waves. Quiz: There is a shadow zone for P waves. Why? a) P waves cannot travel more than half the diameter of the earth and therefore can’t reach the other side of the earth. b) P waves cannot travel through the mantel of the earth. c) P waves cannot travel through the liquid iron outer core. d) P waves cannot travel through the solid iron inner core. e) P waves reflect and refract at the different boundaries in the interior resulting in regions where there are no waves. Chapter 29 (Book) – Plate Tectonic Model s Review Forces that drive plates Basic types of plate interactions and examples of each type Divergent (Spreading) Oceanic Continental Convergent (Collision) Ocean/Ocean Ocean/Continent Continent/Continent Shear (Transform) How continents evolve Hot Spots
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boundary between two continental plates? a) Fold mountain belts b) A trench c) A rift valley d) Explosive volcanoes An overview of geologic features associated with the different boundaries GOOD SUMMARY Quiz: Which of the following is not a piece of evidence for the theory of plate tectonics? 1. The locations where most earthquakes & volcanoes occur 2. The age of rocks on the ocean floor 3. The shadow zone for S-waves passing through the Earth 4. The similarities in the fossils found on many of the continents Chapter 30 (Book) – Geologic Time s Important Principles Principles of Relative Dating Original Horizontality Superposition Cross-cutting Relationships Inclusions Faunal Succession Unconformities Breaks in the rock record Absolute Time
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This note was uploaded on 11/30/2011 for the course PHY S 100 taught by Professor Staff during the Winter '08 term at BYU.

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Exam 4 Review - Chapter 27 Earths Interior Exam 4 Review Review Evidences of current model Direct Observations(Drilling Mantle Inclusions

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