Plate Tectonic Theory
... Proposed that hot, less dense mantle material rises toward the mid-ocean ridges ...
... Proposed that hot, less dense mantle material rises toward the mid-ocean ridges ...
Earth Science Chapter 17: Plate Tectonics
... • As the two sides of the ridge spread apart, the rising magma fills the gap that is created. • When the magma solidifies, a small amount of new ocean floor is added to Earth’s surface. ...
... • As the two sides of the ridge spread apart, the rising magma fills the gap that is created. • When the magma solidifies, a small amount of new ocean floor is added to Earth’s surface. ...
Week 23 Lesson Plan Science 8 all classes
... TSW describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Hertzsprung-Russell diagram for classification. TSW recognize that the sun is a medium-sized star near the edge of a disc-shaped galaxy of stars many thousands of times closer to the earth tha ...
... TSW describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Hertzsprung-Russell diagram for classification. TSW recognize that the sun is a medium-sized star near the edge of a disc-shaped galaxy of stars many thousands of times closer to the earth tha ...
Chapter 22.4: Plate Tectonics
... fit together like puzzle pieces 2. Fossil records show similar plant and animal fossils on continents separated by oceans … suggesting that continents were once one land mass (mesosaur; lystrosaur) on different continents ...
... fit together like puzzle pieces 2. Fossil records show similar plant and animal fossils on continents separated by oceans … suggesting that continents were once one land mass (mesosaur; lystrosaur) on different continents ...
Plate Tectonic Theory
... • Wegener’s theory did not go over well in the scientific community… – no explanation how the continents “drift” – continents plow through sea floor , really??? ...
... • Wegener’s theory did not go over well in the scientific community… – no explanation how the continents “drift” – continents plow through sea floor , really??? ...
tectonic plate boundaries
... Restless Continents Look at pg. 400! Alfred Wegener In the early 1900s, ___________ ___________ continental wrote about his hypothesis of ____________ drift ______. continents once Continental drift = the _____________ landmass formed a single ______________, then broke up, and drifted to the ...
... Restless Continents Look at pg. 400! Alfred Wegener In the early 1900s, ___________ ___________ continental wrote about his hypothesis of ____________ drift ______. continents once Continental drift = the _____________ landmass formed a single ______________, then broke up, and drifted to the ...
1. Evidence for the rearrangement of crustal plates and continental
... underneath. As convection currents move within the mantle the crustal plates move slowly on the surface (up to 10 cm each year). Sometimes the plates bump into each other, e.g. Australia into Asia or Africa into Europe. Some plates slide past each other, e.g. Pacific Ocean plate is sliding north rel ...
... underneath. As convection currents move within the mantle the crustal plates move slowly on the surface (up to 10 cm each year). Sometimes the plates bump into each other, e.g. Australia into Asia or Africa into Europe. Some plates slide past each other, e.g. Pacific Ocean plate is sliding north rel ...
Plate Tectonics - Gull Lake Community Schools
... toward the ocean; this is only possible if continents formed one large massive continent (Pangea) ...
... toward the ocean; this is only possible if continents formed one large massive continent (Pangea) ...
marine provinces, part a
... 2. Gravitational pulls exist from different parts of the bottom of the ocean. High seamounts create bulges, while deep trenches cause indents. 3. Once waves, tides, currents and atmospheric effects are taken out of the equation, the only thing remaining reveals the bathymetry of the ocean floor. ...
... 2. Gravitational pulls exist from different parts of the bottom of the ocean. High seamounts create bulges, while deep trenches cause indents. 3. Once waves, tides, currents and atmospheric effects are taken out of the equation, the only thing remaining reveals the bathymetry of the ocean floor. ...
continental drift and plate tectonics
... Wegener also found fossils of the same plants and animals on different continents now separated by vast oceans. They could only be found this way if the continents had once been joined together. ...
... Wegener also found fossils of the same plants and animals on different continents now separated by vast oceans. They could only be found this way if the continents had once been joined together. ...
Plate Tectonic Theory
... • Wegener’s theory did not go over well in the scientific community… – no explanation how the continents “drift” – continents plow through sea floor , really??? ...
... • Wegener’s theory did not go over well in the scientific community… – no explanation how the continents “drift” – continents plow through sea floor , really??? ...
11.1 Pangaea While looking at a map of the world, have you ever
... discoveries. The evidence that Alfred Wegener collected to support an ancient supercontinent is valid today. And our understanding of plate tectonics has allowed us to answer other questions such as: • Why are volcanoes and earthquakes located where they are? • Where can we find oil, gas, gold, and ...
... discoveries. The evidence that Alfred Wegener collected to support an ancient supercontinent is valid today. And our understanding of plate tectonics has allowed us to answer other questions such as: • Why are volcanoes and earthquakes located where they are? • Where can we find oil, gas, gold, and ...
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... • Continental slope: steep, boundary between continental and oceanic crust. Submarine canyons. To 3,000 - 4,000 M depth. • Continental rise: sediment accumulation. Turbidity currents. Mud and sand. • Abyssal plain: 4,500 - 6,000 M depth. Oceanic crust below. Mostly flat and soft sediment. Mangane ...
... • Continental slope: steep, boundary between continental and oceanic crust. Submarine canyons. To 3,000 - 4,000 M depth. • Continental rise: sediment accumulation. Turbidity currents. Mud and sand. • Abyssal plain: 4,500 - 6,000 M depth. Oceanic crust below. Mostly flat and soft sediment. Mangane ...
Unit Three Review Guide: Plate Tectonics
... Lesson 3 Review 1. Explain the theory of plate tectonics. 2. Describe the processes that happen at: a. Divergent Plate Boundaries b. Transform Plate Boundaries c. Convergent Plate Boundaries 3. Where is new oceanic crust formed? 4. Where is older oceanic crust destroyed? 5. Which type of boundary do ...
... Lesson 3 Review 1. Explain the theory of plate tectonics. 2. Describe the processes that happen at: a. Divergent Plate Boundaries b. Transform Plate Boundaries c. Convergent Plate Boundaries 3. Where is new oceanic crust formed? 4. Where is older oceanic crust destroyed? 5. Which type of boundary do ...
Preview Sample 1
... 1. The process of plate tectonics is occurring today in the same way as in the past. Can you project future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see fig., 2.5)? What oceans are growing and which are shrinking? Where wil ...
... 1. The process of plate tectonics is occurring today in the same way as in the past. Can you project future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see fig., 2.5)? What oceans are growing and which are shrinking? Where wil ...
mid-ocean ridge
... • Scientists combined what they knew about sea-floor spreading, Earth’s plates, and plate motions into a theory called plate tectonics . The theory of plate tectonics states that Earth’s plates are in slow, constant motion, driven by convection currents in the mantle. Plate tectonics explains the fo ...
... • Scientists combined what they knew about sea-floor spreading, Earth’s plates, and plate motions into a theory called plate tectonics . The theory of plate tectonics states that Earth’s plates are in slow, constant motion, driven by convection currents in the mantle. Plate tectonics explains the fo ...
File
... The rigid, outermost layer of the Earth comprising the crust and upper mantle is called the lithosphere. New oceanic lithosphere forms through volcanism in the form of fissures at mid-ocean ridges which are cracks that encircle the globe. Heat escapes the interior as this new lithosphere emerges fro ...
... The rigid, outermost layer of the Earth comprising the crust and upper mantle is called the lithosphere. New oceanic lithosphere forms through volcanism in the form of fissures at mid-ocean ridges which are cracks that encircle the globe. Heat escapes the interior as this new lithosphere emerges fro ...
The Origin of Continents and Oceans
... Organisms have left fossil evidence of their existence on continents across oceans. ...
... Organisms have left fossil evidence of their existence on continents across oceans. ...
Mapping the Ocean Floor
... 4. Name of the most northern trench found on the floor of the Pacific Ocean. ...
... 4. Name of the most northern trench found on the floor of the Pacific Ocean. ...
Chapter 4: Plate - Frankfort School District 157c
... separated by a large salt water ocean? Wegener hypothesized that this reptile must have lived on both continents when they were joined ...
... separated by a large salt water ocean? Wegener hypothesized that this reptile must have lived on both continents when they were joined ...
Pangaea
Pangaea or Pangea (/pænˈdʒiːə/) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 300 million years ago, and it began to break apart about 175 million years ago. In contrast to the present Earth and its distribution of continental mass, much of Pangaea was in the southern hemisphere and surrounded by a super ocean, Panthalassa. Pangaea was the last supercontinent to have existed and the first to be reconstructed by geologists.