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Geography M1 Intrusive Volcanic
The document discusses various intrusive volcanic features formed below the Earth's surface, including sills, dykes, laccoliths, lopoliths, and batholiths. It provides objectives, introduces the key differences between intrusive and extrusive features, and includes diagrams and explanations of each intrusive feature. The presentation aims to help students identify and understand how different intrusive volcanic features are formed within the crust and later exposed at the surface through erosion.
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Geography M1 Intrusive Volcanic
- 1. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X GeographyGeography Module 1Module 1 Unit 4Unit 4 Lesson 26Lesson 26
- 2. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X You would have studied extrusive volcanic features that are formed on the surface of the earth, and is easily seen by all. This presentation will help you to become familiar with how intrusive volcanic features are formed within the earth’s crust . Intrusive volcanic features only become exposed after weathering and erosion. Nevertheless they contribute to spectacular features on the earth’s surface. 2
- 3. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X At the end of the lesson, you will be able to: 1. identify sills, dykes, laccoliths, lopoliths, batholiths and plugs. 2. describe each intrusive volcanic feature. 3. explain how each intrusive volcanic feature is formed. 4. explain the process that takes place for each intrusive volcanic feature to be exposed at the surface of the earth, giving an example of each. 5. demonstrate an appreciation for volcanic landforms. 6. develop an interest in the volcanic activities occurring within the earth. 3
- 4. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X 4 EXTRUSIVEEXTRUSIVE Above theAbove the earth’s surfaceearth’s surface INTRUSIVEINTRUSIVE Below theBelow the earth’s surfaceearth’s surface
- 5. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Can you identify the intrusive volcanic features seen here? 5 CHECK
- 6. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Can you identify the intrusive volcanic features seen here? Click the ANIMATE button. 6 ANIMATE Laccolith Dike Sill Batholith
- 7. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Can you identify the intrusive volcanic features seen here? 7 Did you see these features? CLICK here
- 8. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Can you identify the intrusive volcanic features seen here? Click the ANIMATE button. 8 Did you see these features? CLICK here ANIMATE
- 9. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Did you see these features? See diagram below. 9
- 10. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Can you identify the sill in this diagram? 10 It is the feature highlighted inIt is the feature highlighted in blue-greenblue-green..
- 11. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Instructions: 1. Read each question and type your response in the box below. Click the CHECK button for feedback. 2. You need to be in slide show view to type and edit text. 1. A sill is a sheet like injection of magma between layers of sedimentary rock. It ranges from a few feet to hundreds of feet thick. 2. A sill is formed when magma cools and solidifies along the bedding plane. 11
- 12. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X SILLSILL 12
- 13. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X SILLSILL 13
- 14. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Instructions: 1. Read each question and type your response in the box below. Click the CHECK button for feedback. 2. You need to be in slide show view to type and edit text. The dyke is the feature highlighted in blue-greenblue-green. The dyke cuts across the bedding plane whereas the sill runs along the bedding plane. 14
- 15. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X 15 The dyke tends to be vertical or near vertical whereas the sill tends to be horizontal or slightly inclined. The dyke may reach the surface whereas the sill is usually exposed at the surface after erosion takes place. Continue Continue Click for Photo
- 16. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X 16 DYKEDYKE PLUGPLUG DYKEDYKE PLUGPLUG
- 17. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Can you identify the laccolith in this diagram? Do you notice its shape? 17 The laccolith is highlighted in the blue-greenblue-green colour. The laccolith has a dome shape. Click for Photo
- 18. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Laccolith 18
- 19. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Both formed when magma cools and solidifies. Do you notice the difference in their shape? Lopolith – saucer shaped CHECKCHECKCHECKCHECK 19 Laccolith – dome shaped
- 20. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X A batholith is highlighted in the blue-greenblue-green colour in the diagram below. How is a batholith formed? 20 The largest intrusive body. A large former magma chamber at shallow depth. Dome-shaped intrusions of magma occurring at the base of mountains or deep within the earth’s crust. Click for Photo
- 21. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X 21 Batholiths
- 22. OBJECTIVESOBJECTIVES IntrusiveIntrusive VolcanicVolcanic FeaturesFeatures Sills & DykesSills& Dykes Laccoliths &Laccoliths & LopolithsLopoliths BatholithsBatholiths INTRODUCTIONINTRODUCTION X Batholith, Dyke, Lacolith, http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneou s_rock_bodies.htm#batholith Intrusive Volcanic Features http://www.uwgb.edu/dutchs/EarthSC202Notes/igneous.htm Laccolith http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneou s_rock_bodies.htm#batholith Laccolith and Lopolith http://vankid.deviantart.com/art/Laccolith- and-Lopolith-86364109 Sill http://www.summitpost.org/palisades/607012 Volcanic Landforms: http://www.indiana.edu/~geol105/images/gaia_chapter_5/dike&sil l.jpg Intrusive explanatory diagrams http://www.indiana.edu/~geol116/week4/wk4.html Intrusive Features http://1two3.co.za/geography/geogwiki/grade- 10/geomorphology/introduction/
Editor's Notes
- #2 Read this before viewing as slide show. Note. If you are using PowerPoint 2007, before you begin, look for the Security Warning below the ribbon, above this slide and click the Options button. In the Security Alert box, click “Enable This Content”. If the Security Warning does not appear, then view the presentation as Slide Show. If you are using PowerPoint 2013, look below the ribbon. If you see a Security Warning, click Enable Content before viewing in Slide Show View.
- #6 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/dike&sill.jpg
- #7 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/dike&sill.jpg
- #8 Source: http://www.uwgb.edu/dutchs/EarthSC202Notes/igneous.htm
- #9 Source: http://www.uwgb.edu/dutchs/EarthSC202Notes/igneous.htm
- #11 Batholith, Dyke, Loccolith, http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #13 Source: http://www.summitpost.org/palisades/607012
- #14 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #15 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #16 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #17 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #18 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #19 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #20 Source: http://vankid.deviantart.com/art/Laccolith-and-Lopolith-86364109
- #21 Batholith, Dyke, Loccolith, http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith
- #22 Source: http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_bodies.htm#batholith