Lesson plan
Mitchell Plain
The Mitchell Plain is a karst area in Indiana of relatively low relief. The extensive underlying cave system developed in Mississippian age limestone bedrock. Surface drainage is rare due to most streams in the area disappearing into caves or joints within the rock. The limestone is a vestige of an early shallow cratonic sea that covered what would become Indiana, while the north–south linearity of the region is left over from the Cincinnati Uplift, sloping the rock layers from a high in the East sloping downward towards Cairo, Illinois. The Mitchell Plain is bound by the older rocks of Norman Upland on the East and the younger rocks of Crawford Upland on the West.
Article summary
The Mitchell Plain is a karst area in Indiana of relatively low relief. The extensive underlying cave system developed in Mississippian age limestone bedrock. Surface drainage is rare due to most streams in the area disappearing into caves or joints within the rock. The limestone is a vestige of an early shallow cratonic sea that covered what would become Indiana, while the north–south linearity of the region is left over from the Cincinnati Uplift, sloping the rock layers from a high in the East sloping downward towards Cairo, Illinois. The Mitchell Plain is bound by the older rocks of Norman Upland on the East and the younger rocks of Crawford Upland on the West.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.