Real Life Sea Floor Spreading

Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometers to measure the magnetism of the ocean floor in the 1950s what they discovered was that the magnetism of the ocean floor around. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. Seafloor spreading definition a process in which new ocean floor is created as molten material from the earth s mantle rises in margins between plates or ridges and spreads out.

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Real life sea floor spreading.

For a general explanation of mid oceanic ridges see mid oceanic ridge and seafloor spreading. Due to this continuous seafloor spreading occurs and makes atlantic ocean floor to be connected to other continental crust making the ocean gets wider over the time. 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. Paper strip represents seafloor 2.

Subduction and sea floor spreading are processes that could alter the size and form of the ocean. Seafloor spreading real life examples. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. The magnet represents the earth s magnetic field 4.

The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. The ridge sits atop a geologic feature known as the mid atlantic rise which is a progressive bulge that runs the length of the atlantic ocean with the ridge resting on the highest point of this linear bulge this bulge is thought to be caused by upward convective forces in the asthenosphere pushing. For instance the atlantic ocean is believed to be expanding because of its few trenches. Sea floor spreading plate tectonic evidence you seafloor spreading theory joshiscience theory and evidence of seafloor spreading earth eclipse plate tectonics seafloor spreading.

Learn more about sea floor spreading and how it works with this demo. Whats people lookup in this blog. This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.

Pulling out the strips of paper represents the process of seafloor spreading 3. What does the paper strip used in the model represent in real life. When the strips of paper are pulled out what process does this represent. What does the magnet represent.

The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century.

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