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What do geologists believe the land masses on the earth looked like 250 million years ago? |
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What does the word Pangaea mean? |
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What was different about North and South America and the Gulf of Mexico 250 million years ago? |
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When did Pangaea begin breaking apart? |
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What was the continental drift? |
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During the time of the Continental Drift, where was the Gulf of Mexico located? |
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How was Louisiana formed? |
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Why is the formation of Louisiana considered unique? |
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Definition
because it formed from sediment |
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What happened to water levels during the Ice Age? |
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Where did Louisiana's coastline extend during this time? |
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Definition
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What is the continental shelf? |
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Definition
the edge of all the gulfs land masses |
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How and when did the Louisiana coastline and Gulf of Mexico reach its present day appearance? |
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Definition
when rivers flow into an ocean |
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Term
What is the most famous delta? |
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Definition
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What is a popular place to visit along Louisiana's coast? |
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What is so unusual about Grand Isle? |
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Term
How much does Grand Isle move in a year? |
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What happened to Grand Isle in 2005? |
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What is one of the greatest threats facing Louisiana today? |
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Definition
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How much land disappears in a year? |
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Definition
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How much land did hurricane Katrina destroy in a day? |
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Definition
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Term
How do we control the Mississippi River? |
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Definition
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Term
What has been a result of the levees? |
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Definition
no longer overflow natural levees and deposit more sediment |
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Term
All of Louisiana was created by _____. |
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Definition
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Term
All native rock in Louisiana is _____. |
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Definition
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When do geologists believe most Louisiana rock was formed? |
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Definition
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In geologic time, where is the land oldest in Louisiana? |
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How old is the oldest exposed rock? |
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Where is the oldest exposed rock located? |
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How do earthquakes occur? |
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Louisiana has _____ earthquakes. |
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Definition
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Where have earthquakes occurred in Louisiana? |
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