* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Lesson 2.1 Continental Drift
Survey
Document related concepts
History of geology wikipedia , lookup
Post-glacial rebound wikipedia , lookup
Deep sea community wikipedia , lookup
Geochemistry wikipedia , lookup
History of research ships wikipedia , lookup
Marine pollution wikipedia , lookup
Marine habitats wikipedia , lookup
Abyssal plain wikipedia , lookup
History of navigation wikipedia , lookup
Ocean acidification wikipedia , lookup
Large igneous province wikipedia , lookup
Arctic Ocean wikipedia , lookup
Paleoflooding wikipedia , lookup
Physical oceanography wikipedia , lookup
Transcript
*Refer to Chapter 3 in your Textbook Bellringer: 9/10/15 List 3 ways you think the ocean has changed over time (use things like more/less, bigger/smaller…) Reminder: ALL Unit 1 make-up & late work must be turned in by next Thursday, 9/17! Learning Goals: 1. I can explain evidence for the Theory of Plate Tectonics. 2. I can differentiate between the 3 plate boundaries. 3. I can explain how the ocean was formed. 4. I can identify smaller divisions of the ocean. Theory of Continental Drift: = the movement of the continents across the ocean bed Edward Suess (Late 1800’s) Gondwanaland: South America, Africa, Antarctica, Australia, & India Alfred Wegener (1915) Laurasia: North America, Europe, & Asia Pangea: combined Gondwanaland with added Laurasia Theory of Continental Drift Convection H. Hess (1960’s) Convection: force that makes magma in Earth’s mantle move, due to heating and cooling Cool- sinks toward core Heat- rises toward upper mantle/crust Theory of Plate Tectonics = Lithospheric/Tectonic plates move across the asthenosphere Lithosphere: crust & upper mantle, rigid Asthenosphere: part of the lower mantle, viscous Lithospheric Plates Theory of Plate Tectonics Types of Plate Boundaries: Convergent: oceanic-to-continental crust come together Old crust is submerged into the mantle and destroyed Form: Trenches Divergent: oceanic-to-oceanic crust move apart New crust is formed via sea floor spreading Form: Mid-ocean ridges Transform: oceanic-to-oceanic crust scrape past each other in opposite directions Form: Faults & Cliffs Types of Plate Boundaries Formation of the Ocean Tethys Ocean: Between Gondwanaland and Laurasia Closed when India moved into Asia Panthalassic Ocean: Huge ocean surrounding Pangea Became the Pacific Atlantic Ocean: Formed when North America separated from Eurasia Indian Ocean: Formed when Gondwanaland broke apart Formation of the Ocean MYAM YA Today’s Ocean We have one world ocean broken into 5 artificial components Pacific Atlantic Indian Arctic Southern/ Antarctic Smaller Divisions of the Ocean Sea: a smaller body of salt water that is almost completely surrounded by land Example: Mediterranean Sea Gulf: a smaller body of salt water that is partially surrounded by land Example: Gulf of Mexico Estuary: inlet area where salt water meets fresh water Example: St. Lucie Estuary Lagoon: body of water composed of brackish water- a mixture of salt & fresh Example: Indian River Lagoon