Physical Geology – Barrier Islands – Vitrual Field Trip

Physical Geology – Barrier Islands – Vitrual Field Trip

>>Dr. Doug Elmore: Let’s take a virtual field trip to several barrier islands. Here’s a picture of a beach in Louisiana. It’s composed of sand, there’s symmetrical ripples, and there’s seaward-dipping planar laminae, which I’ll talk about more in the next slide. It’s of course it’s covered daily, twice daily, with saltwater. And it’s inhabited by burrowers, crabs, worms, and

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Physical Geology – Barrier Islands – Summary

Physical Geology – Barrier Islands – Summary

>>Dr. Doug Elmore: This will be the summary for barrier islands. So what are barrier islands? They’re elongate islands that parallel the coast. Generally very long, but not very wide. They mostly occur on shallow trailing edge shelves like the Atlantic Coast of North America. They’re separated by inlets, and they’re separated from the mainland by bays, lagoons, or marshes.

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