Bethany Goodine and Brittany Hood November 2010 Science.

Slides:

Advertisements

Similar presentations

The Theory of Plate Tectonics

Advertisements

Plate Tectonics 6.E.2.2 Explain how crustal plates and ocean basins are formed, move and interact using earthquakes, heat flow and volcanoes.

Restless Continents.

Types of plate boundaries

The Theory of Plate Tectonics

Plate Tectonics.

Plate Tectonics Mr. Q and Mrs. Wolfe 6 th Grade Earth Science.

The Theory of Plate Tectonics

Plate Tectonics.

Chapter 4 Lesson 1 Plate Tectonics. What Are Earth’s Layers.

Chapter 10 Plate Tectonics. Alfred Wegener Proposed they hypothesis of continental drift Proposed they hypothesis of continental drift CONTINENTAL DRIFT-

Plate Tectonics Chapter 17. The Earth’s Drifting Continents German scientist Alfred Wegener, 1900’s proposed the Theory of Continental Drift It was.

EQ: How do lithospheric plates move and how do they affect the Earth’s surface?

Obj: What is the Theory of Plate Tectonics? Copy the following questions in your notebook: TABLE 1 (7)- What is a mid ocean ridge? TABLE 2 (8)-What is.

The Birth of a Theory: Continental Drift. Throughout history, most people believed that the continents had always been in the same positions that they.

Theory of Plate Tectonics. Plates Meet at Boundaries Hot, mantle moves the plates. Tectonic Plates.

THE USE OF SONAR, AND THE THEORY OF SEAFLOOR SPREADING. By: Rishon Pryce, Kaylee French Period – 6 09/21/15.

The Problem with Continental Drift While Wegener was able to find evidence of continental drift, there were 2 major problems with his ideas: – Wegener.

“Restless Continents”. A. One scientist who looked at the pieces of this puzzle was Alfred Wegener. 1. In the early 1900s, he wrote about his hypothesis.

Do Now. The theory of plate tectonics explains that earth’s lithosphere moves due to the unbalanced forces occurring within the mantle. Alfred Wegner.

 J Tuzo Wilson- lithosphere is broken into separate sections called plates.  Combine all information from continental drift, sea-floor spreading, and.

Lesson 2 Earth’s Bodies of Water

Divergent Boundaries (aka constructive boundaries) Rising convection currents force 2 plates apart Release of pressure on asthenosphere causes it to.

Chapter 1-5.  Canadian scientist J. Tuzo Wilson observed that lithosphere is separated into different sections or plates  Plates carry continents,

Continental Drift Theory The hypothesis that Earth’s continents move on Earth’s surface. Wegner proposed this theory Sea Floor Spreading a process in which.

The Theory of Plate Tectonics:. The Lithosphere is broken into separate sections called plates. The plates fit together along cracks in the lithosphere.

 In 1915 Alfred Wegener proposed the Theory of Continental Drift  = continents are not fixed and in the past all continents had been joined.

 Alfred Wegener – developed the Continental Drift hypothesis  The continents were once joined as one single “supercontinent”  Pangea was the name given.

Plate Tectonics Chapter 4.4. Who is J. Tuzo Wilson and what was his idea? J.Tuzo Wilson proposed that all the lithosphere is broken into separate sections.

+ Unit 4: Lesson 2: Theory of Plate Tectonics. + REVIEW What layer of the Earth is broken into tectonic plates? What layer of the Earth has convection.

 Alfred Wegener wrote about his hypothesis of continental drift in the 1900s.  Continental drift is the hypothesis that states that the continents.

Plate Tectonics Study Guide. Alfred Wegener = Continental Drift Continents were once part of a single land mass called Pangaea (all lands). During the.

 How does the distribution of fossils provide evidence for continental drift?  How does the location of mountain chains provide evidence of continental.

Chapter 9 Plate Boundaries.

Plate Tectonics Scientist, Tuzo Wilson, combined the knowledge of sea-floor spreading, earths plates, and continental drift into a single theory- The Theory.

Plate Boundaries.

Continental Drift and Plate Tectonics (notes pt. 2)

Plate Tectonics Sea-floor Spreading.

Theory of Plate Tectonics

Continental Drift Theory

3 Movements at plate boundaries

Plate Tectonics The crust in motion.

Plate Tectonics EQ: How do lithospheric plates move and how do they affect the Earth’s surface?

Earth’s Water (cont.) Glacier - large moving mass of ice

Seafloor Spreading.

Evidence of Plate Tectonics

Continental Drift Theory

Plate Tectonics Mr. Q and Mrs. Wolfe 6th Grade Earth Science.

The Theory of Plate Tectonics

Theory of Seafloor Spreading

9-3 Theory of Plate Tectonics

Theory of Plate Tectonics

What Goes On Beneath Our Feet

Plate Tectonics Mr. Q and Mrs. Wolfe 6th Grade Earth Science.

Physical Geography.

Plate Movements.

Part 2 of # 8 Continental Drift and Plate Tectonic Notes

9.3 Actions at Plate Boundaries

Plate Tectonics Chapter 4.5.

Jeopardy Final Jeopardy Tectonic Plates Divergent Transform Convergent

The Structure of the Earth and Plate Tectonics

Unit 1 Vocab Earth Science Unit

Plate Tectonics Geo Science.

Sea Floor Spreading.

5.5 Key concepts: What is the theory of plate tectonics?

Divergent Plate Boundaries

Plate Tectonics.

Presentation transcript:

Bethany Goodine and Brittany Hood November 2010 Science

 What is a continental drainage system? - in North America, the continuous ridge of mountain summits dividing the continent in to two main drainage systems. On one side rivers and streams go to the pacific and on the other they go to Hudson’s Bay or the Gulf of Mexico.  What is an Ocean Basin? - Ocean basins are deep wide depressions in the Earth’s surface that contain the oceans.

 In the late 60’s, J. Tuzo Wilson realized that if continents rift apart to create ocean basins, then other oceans must have been closed in the process. This has happened in Earth’s history and might be repeated in the future.  For example. The Iapetus ocean between England & Scotland closed in the Caledonian and later it opened as the Atlantic Ocean in almost the exact same place.  This process is called the Wilson cycle.

 According to ure3/lecture3.html, there are 4 steps in the process: ure3/lecture3.html  (1) Rifting of continents by mantle diapirism.  (2) Continental drift, seafloor spreading & formation of ocean basins.  (3) Progressive closure of ocean basins by subduction of ocean lithosphere.  (4) Continental collision and final closure of ocean basin.

 Ocean basins are formed by tectonic forces and processes.  In history, tectonic plates moved and created large basins which filled with water and now hold the worlds oceans and seas.

 These systems develop so that water can efficiently run off land.  Drainage Systems are created so water from small drainage basins surrounded by land empties into the ocean.  Drainage basins empty into streams, which empty into more streams etc. until the empty into the ocean.

 Plate Tectonics. -These are moving because of currents in the magma and affects the drainage patterns of the continents.  Glaciers. - They melt because of climate change and the water has to flow out into the ocean and creates paths that create new drainage systems.

 Rift: an opening made by splitting, cleaving, etc.

 Streams and drainage systems. (2010, November 15). Retrieved from ms.htm  /article/122 /article/122  treams.htm treams.htm