Articles tagged "sediment"

Unit_3_The_Earths_Crust

Pulsating planet: Superhot rocks make the Earth roll

The river valleys are in the North Sea, north of Scotland, beneath a kilometre of water and a further 2 kilometres of sediment. The sea floor here has been slowly sinking ever since it formed. Yet 55 million years ago, something very strange happened. In a geological

April 09, 2011

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Underwater Volcanoes a hotbed of clues to Earth's movements

Nearly half a mile of rock retrieved from beneath the seafloor is yielding new clues about how underwater volcanoes are created and whether the underlying hot spots of molten rock that lead to their formation have moved over time.Geoscientists have just completed an

February 18, 2011

ocean_biomass_map

Understanding the patterns of seafloor biomass

The vast majority of the biological production in the world's oceans occurs within sunlit surface waters - the so-called photic zone. Through the process of photosynthesis, tiny marine plants called phytoplankton use the energy of sunlight to build the carbon-rich

February 11, 2011