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Phytoplankton Blooms are caused by an explosive growth rate of plankton in surface waters.
Hawaiian Hot Spot
How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.
Arctic Ocean Seafloor
Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor.
Deepest Ocean Trench
Deepest Part of the Ocean The Mariana Trench is the deepest point in the ocean.
Storm Surge can be the most damaging and deadly aspect of a hurricane.
What Causes a Tsunami? Learn how plate motions trigger earthquakes and tsunamis.
A Gallery of Sand Sand from around the world photographed by Dr. Gary Greenberg.
Gifts That Rock
Gifts That Rock - What are the most popular gift items in the Geology.com store?
Sand is a diverse material. This gallery includes photos of sand from around the world.
Pacific Ocean Tsunamis Surrounded by plate boundaries, that can produce tsunami.
Who Owns The Arctic?
Who Owns The Arctic? USGS estimates that 25% of all new oil & gas will be found in the Arctic.
The Northwest Passage can now being used in summer and fall for commercial shipping.
Atlantic Ocean Tsunamis Rare events that can cause damage and threaten millions of people.
Arctic Ocean Map
Arctic Ocean Map A physical map of the Arctic Ocean.
Draw Plate Tectonics
Teaching Plate Tectonics with easy-to-draw illustrations. Students love to draw.
Indian Ocean Tsunamis
Indian Ocean Tsunamis Deadly tsunamis triggered by earthquakes and volcanoes.
Loihi Seamount is a submarine volcano that could become an island in the Hawaiian Chain.
Bathyscaphe Trieste Diving to the deepest part of the ocean in 1960.
Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.