Seafloor Spreading Lecture

Evidence for sea floor spreading a ocean floor topography bathymetry plains oceanic ridge undersea mountain range 80 000 km long with central rift valley global map global map.

Seafloor spreading lecture.

Get detailed illustrated notes covering entire syllabus. Seafloor spreading slides from lectures preceding seaflor spreading exercise eileen herrstrom herrstro illinois edu 2018. Start studying sea floor spreading notes. Students will observe seafloor spreading in the classroom through a paper towel spreading center demonstration illustrating the relative motion of the plates.

Explains the discovery of sea floor spreading and what evidence there is to support it. Alfred wegener german meteorologist who. 3 questions raised after sea floor mapping 4. 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.

All land was once one large continent later it broke apart moved to present places when. Mapping the mid ocean ridge the mid ocean ridge is thelongest chain of mountains in theworld in the 1950s scientist mappedthe mid ocean ridge using sonar sonar is an instrument that usessound waves to measuredistance it bounces sound waves offunderwater objects and recordsthe echoes of these. Sea floor spreading new ocean rock created at oceanic ridge moves laterally away from there gets destroyed at trenches where it sinks into mantle figure. Learn vocabulary terms and more with flashcards games and other study tools.

Provides mechanism for movement of continents. 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. Point by point for high retention. Sea floor spreading notes jenny 1.

1 mechanism explaining sea floor spreading basics for plate tectonics youtube lecture handouts get unlimited access to the best preparation resource for ugc. An associated lecture will explain the process of seafloor spreading in detail and solidify key points. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.