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Geology
Rivers
| Term | Definition |
|---|---|
| geology | the study of how the Earth was formed |
| barrier island | created after a river abandons is delta; they support a diversity of wildlife |
| brackish | mixture of fresh and salt water |
| coastal plain | relatively low, flat region, built up by river sediment |
| coastal marsh | wet grassland formed by river sediment deposited along the coast |
| delta | forms when a river flows into an ocean |
| flood plain | serves as a reservoir to hold excess water when the river floods |
| natural levee | elevated land along the river bank created by floods |
| meander | Louisiana rivers wind across the floodplain in a looping and curving pattern (snake) |
| oxbow lake | cresent or horse shoe shaped, formed when a river floods |
| reservoirs | manmade lake |
| high relief | hilly land |
| Atchafalya River | longest distributary or the Mississippi River; the basin supplies 23 million pounds of crawfish per year |
| Pearl River | forms boundary with Mississippi at the toes of the Louisiana boot |
| Pangea | 250 million years ago, the worlds landmass was one giant continent. "all land" |
| continental shelf | the edge of landmass where the Gulf's floor drops off into very deep water |
| cultural geography | study of how people have interacted with, changed, and adapted to different places of Earth |
| Mississippi River | fourth largest river in the world |
| Ouchita River | begins in the mountains of Arkansas and runs through northeast Louisiana |
| Intercoastal Waterway | 3,000 mile waterway that allows ships to go from Texas to Florida |
| population density | the average number of people living within an area |
| salt dome | ancient sea dried up, leaving a layer of salt and other minerals on the ocean floor exposed |
| sediment | suspended particles of dirt and sand carried by rivers |
| geography | the study of places, their locations, and their physical and human characteristics |
| low relief | flat land |
| Red River | 2nd longest river in Louisiana; has frequently change course |
| Sabine River | forms the border between Texas and Louisiana |
| depression lake | created when land sinks along a fault and fills with water |
| human environment interaction | when humans interfere with nature |
| physical geography | study of landforms, oceans, weather and climate |
Created by:
Ashley87923
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