Profile Of The Ocean Floor
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A bathymetric profile or a profile of the contours of the ocean floor is made with sonar or satellites or a combination of both.
Profile of the ocean floor. From studying the oxygen isotopes of the shells of microfossils in these cores scientists were able to begin studying the earth s past climates in a study known as paleoclimatology. Though people have traveled on the ocean for millennia people have explored only a tiny fraction of the ocean floor. The ocean surface is vast and hides an entire world underneath it. Deep ocean drilling and radiometric dating in the late 1960s gave an accurate stratigraphy and precise date of the ocean floor.
As ocean crust descends toward the hot mantle it melts and becomes recycled into the mantle. Chapter 14 the ocean floor pdf free atlantic ocean floor topography lab diagram of the ocean floor seafloor topography grade 9 free printable tests and modelling the ocean floor lab. Focus on the west coast of south america and in the space below complete the topographic profile of the pacific ocean floor from south america westward about 600 miles 1000 km south america pacific ocean t he deep linear features the lowest points on earth are called acean trenches. The form and topography depth profile of the ocean floor is termed 70.
The rim of fire which is named for its volcanoes and earthquakes is created by a series of subduction zones along the coastlines. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Bathymetric profiles are used for coast line construction and. Approximately what percentage of earth s surface is covered with water.
Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet. Volcanoes and earthquakes are common in subduction zones which often occur at the edges or margins of continents. See more ideas about science projects earth science ocean projects. Whats people lookup in this blog.
Ocean floor topography worksheet answers. Feb 13 2017 explore mariah stacey robinson s board ocean floor project on pinterest.
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