Drawing Of The Seafloor
Next review the seafloor creation and destruction handout by drawing the diagrams on the board smartboard.
Drawing of the seafloor. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. Color coding refer to fig. 7 50 for an example.
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. Have a discussion with your class to standardize your colors and contour lines so different seafloor grids can be compared. Earlier theories by alfred wegener and alexander du toit of continental drift postulated that.
We had such a laugh from drawing badly that. Explain that seafloor spreading and movement is a cyclical process because it is constantly being created and destroyed. Drawing random things from memory.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. Draw another coral by doubling a curved line back upon itself many times. These indicate the sandy seafloor.
Begin by drawing a series of overlapping horizontal curved lines. Draw an oval near the top then band the sponge with curved lines. Todays is just a random video that resulted from taurtis and i drawing spongebob from memory.
He also found out that the temperature near to the mid atlantic ridge was warmer than the surface away from it. Refer back to the demonstration that you performed during the engage portion of the lesson to demonstrate this. Seafloor spreading was proposed by an american geophysicist harry h.
By the use of the sonar hess was able to map the ocean floor and discovered the mid atlantic ridge mid ocean ridge. 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.
