Real Life Sea Floor Spreading

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Real life sea floor spreading.

What does the magnet represent. The magnet represents the earth s magnetic field 4. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. What does the paper strip used in the model represent in real life.

For instance the atlantic ocean is believed to be expanding because of its few trenches. For a general explanation of mid oceanic ridges see mid oceanic ridge and seafloor spreading. Learn more about sea floor spreading and how it works with this demo. 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.

Free background music no copyright music brvtvs dead times freebackgroundmusic webs. 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. Pulling out the strips of paper represents the process of seafloor spreading 3.

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. 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. When the strips of paper are pulled out what process does this represent. Whats people lookup in this blog.

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. 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. Paper strip represents seafloor 2. Subduction and sea floor spreading are processes that could alter the size and form of the ocean.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.