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| Content Provider | PBS LearningMedia |
|---|---|
| Copyright Year | 2019 |
| Description | During the floods of 1993 and 2008, Coralville Lake in Coralville, Iowa exceeded its capacity, and excess water flowed over the emergency spillway. The 1993 overflow continued for 28 days and washed away road, campground, and up to 17 feet of soil and rock, exposing the Devonian bedrock, a 375 million-year-old seafloor. The area was widened in 2008 when floodwaters again swept through. This location in the Devonian Fossil Gorge shows large, flat, overlapping slabs, deposited by the flood waters. |
| Sponsorship | REAP - Resource Enhancement and Protection |
| Language | English |
| Publisher | PBS Learning Media |
| Publisher Date | 2019-02-08 |
| Access Restriction | Open |
| Rights Holder | PBS |
| Subject Keyword | Science Earth and Space Science Earth's Geosphere Earth's Structure Earth's Surface Processes Geologic Record Social Studies Geography Tools and Methods Maps and Globes State Types of Landforms |
| Content Type | Video |
| Educational Role | Teacher Student |
| Time Required | PT2M22S |
| Education Level | Class XI Class VII Class VIII Class IX Class XII Class VI Class X |
| Resource Type | Broadcast |
| Subject | Structure of the Earth: Crust, Mantle and Core |
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