Crust movement - PowerPoint PPT Presentation

Seafloor Spreading

Seafloor Spreading. Mapping of Ocean Floor. 40’s – 50’s use of echo sounding—using sound waves to map ocean floor to locate mountains and valleys. Mapping of Ocean Floor. Mid-ocean ridge – underwater mountain range. Theory of Seafloor Spreading.

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386 views • 10 slides

Distribution of Earth’s Water

Distribution of Earth’s Water. The Oceans Water covers about 75% of the Earth’s surface 97% is salt water 3% is fresh water only 1% of fresh water can be used. There are 4 major bodies of water: Atlantic Ocean Pacific Ocean Indian Ocean Arctic Ocean.

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2.44k views • 8 slides

Volcano Power

Volcano Power. Kevin Kwong and Tyler Szwarc. http://www.volcano.si.edu/world/find_regions.cfm. Rising Ash Plume. Volcano Power. Cooling of Erupted Material. Total energy = movement of volcanic material + energy lost due to cooling of ejected material. Crust.

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216 views • 5 slides

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