Deformation and Metamorphism

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Thermal Metamorphism 1. What is thermal metamorphism? 2. What is a metamorphic aureole? 3. Some examples of igneous intrusions are shown in the diagrams below. Shade in the metamorphic aureoles in each case. Topics 1.3.3 & 1.3.4 Deformation & Metamorphism Page 26 of 33
4. What can you say about the relative amounts of heat energy produced by the batholith and the dyke shown in the diagrams above? 5. Compare the degree of metamorphic change you would expect in the rocks around the dyke with that around the batholith. 6. How would the size of the metamorphic aureole around the dyke compare with the metamorphic aureole around the batholith? 7. Collect specimens of the sedimentary rock shale and the metamorphic rock hornfels, which is formed by thermal metamorphism of shale. Use the table below to compare their properties. Feature Shale Rock type Hornfels Colour Texture 'Hardness' Density Mineralogy Layering present? Topics 1.3.3 & 1.3.4 Deformation & Metamorphism Page 27 of 33
Page 1 and 2: Student: ……………………
Page 3 and 4: Regional Processes Metamorphism Met
Page 5 and 6: 2. Temperature Changes in temperatu
Page 7 and 8: (Tightly) folded rock formation at
Page 9 and 10: 1.3 - Regional Processes 1.3.4 - Me
Page 11 and 12: THERMAL (CONTACT) METAMORPHISM Ther
Page 13 and 14: Over many millions of years, two co
Page 15 and 16: Orogenic activity, and hence region
Page 17 and 18: Foliated Rocks As shown in the diag
Page 19 and 20: Both the original bedding planes an
Page 21 and 22: 3. Use the table below to summarise
Page 23 and 24: 9. Label the adjacent diagram, whic
Page 25: Factors Affecting Metamorphism 1. I
Page 29 and 30: Regional Metamorphism 1. Describe,
Page 31 and 32: 7. a. Give the words that are used
Page 33: 11. Summarise the characteristics o

Deformation and Metamorphism

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