DISCUSSIONS
Topics for discussion sessions and links to information on these topics
RESOURCES
Access to class materials and reference to relevant text chapters for each topic
ASSIGN.
Details of assignments and resources on these topics
A summary of course themes and learning objectives
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PLEASE complete the Discussion Topic #2 Survey on Oncourse before investigating the Links below
Questions Concerning the Growth of the Continents
- What processes control the formation of the Earth's crust?
- Where is new crust being formed today?
- Crust is either oceanic or continental
- Have the processes of crustal formation remained uniform over geological time?
- What controls crust formation?
- How might the conditions that control crust formation have changed through Earth history?
- Would the crust formed early in Earth history be similar
to today's newly forming crust?
- How do oceanic and continental crust differ and why?
- What is different about their formation?
- What is different about their chemical compositions, minerals and rock types?
- How have the continents and oceans evolved over time?
- Has the relative proportions of continents and oceans remained constant?
- How are ancient continents differ from younger continents?
- How do continents grow?
Websites with Resources and Information on Tectonics, Crust Formation and Early Continents
- History of Development of Concepts in Plate Tectonics
- Principles of the Rock Cycle, Crustal Formation and Tectonics
- Summary of Evolutionary Events in Early Earth History, including Crust Formation
- The First Continent?
- Notes on Characteristics of the Early Crust
- Maps and Links to Animations of Changes in Continents over Time
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Department of Geological Sciences,
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Phone: (812) 855-5582 Last updated: 18 February 2004
Comments: simon@indiana.edu
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