Sea Floor Spreading Blank Diagram

A model of seafloor spreading key 1.

Sea floor spreading blank diagram.

Seafloor spreading is the creation of new seafloor or new oceanic crust 5. Read the definitions below then label the seafloor spreading plate divergence diagram. Spreading rates determine if the ridge is fast intermediate or slow. The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid ocean ridge is the spreading half rate and is equal to half of the spreading rate.

Lower mantle semi rigid the deepest parts of the mantle just above the core. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. 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. Magma molten rock withing the earth s mantle.

A long narrow and very deep canyon where the ocean floor bends down toward the mantle is called a. Ocean floor topography worksheet answers. Whats people lookup in this blog. Ocean floor diagram worksheet answers.

The earth does not get bigger. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. For instance the atlantic ocean is believed to be expanding because of its few trenches. 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.

Seafloor spreading model of sea floor spreading sea floor spreading worksheet sea floor spreading homework whats people lookup in this blog. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. The oldest sections should be the sections on both sides furthest from the middle 4. Sea floor spreading worksheet key ocean floor diagram quizlet diagram of the ocean floor model of sea floor spreading sea floor spreading worksheet.

How did drilling samples show that sea floor spreading really has taken place. In seafloor spreading. Fill in the blank. Subduction and sea floor spreading are processes that could alter the size and form of the ocean.

The process by which the ocean sinks beneath a deep ocean trench and back into the mantle is. Fill in the blank. Atlantic ocean floor topography lab diagram of the ocean floor seafloor topography grade 9 free printable tests and modelling the ocean floor lab. Whats people lookup in this blog.

Seafloor spreading blank diagram. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.