The Hydrosphere


Video Study Guide: The Ocean Floor (VK788; 25 minutes)


What is the Mid-Atlantic Ridge?


What is Alvin's new high pressure sphere made of, and how deep can it go?


What are the most common rocks found on the seafloor?


What types of sediment are covering the pillows?


Describe the formation of a typical pillow.


How often do eruptions occur in any particular portion of the spreading ridge?


How does GLORIA map the seafloor?


How does a drilling ship "stay on station?"


Describe the "Hot Spot Theory."


What effect does the heat from the volcanoes have on the seafloor environment?


What are Black Smokers?


Where are most hydrothermal hot springs found?


What are pelagic sediments?


What are turbidite currents?


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