Dynamic Crust 4 Plate Tectonics
... Mesosaurus dinosaur fossils found in both South America and Southern Africa ...
... Mesosaurus dinosaur fossils found in both South America and Southern Africa ...
theory of Plate Tectonics ppt
... Paleomagnetism is the natural remnant magnetism in rock bodies; this permanent magnetization acquired by rock can be used to determine the location of the magnetic poles at the time the rock became magnetized. Normal polarity—when rocks show the same magnetism as the present magnetism field Rever ...
... Paleomagnetism is the natural remnant magnetism in rock bodies; this permanent magnetization acquired by rock can be used to determine the location of the magnetic poles at the time the rock became magnetized. Normal polarity—when rocks show the same magnetism as the present magnetism field Rever ...
31. From Continental Drift to Plate Tectonics
... Period there existed a small freshwater reptile called Mesosaurus whose fossils are found in similar rocks in South Africa and in Brazil. A bit later, during the early Triassic Period, a medium-sized reptile called Lystrosaurus left its remains in what are now Brazil, South Africa, India, Antarctica ...
... Period there existed a small freshwater reptile called Mesosaurus whose fossils are found in similar rocks in South Africa and in Brazil. A bit later, during the early Triassic Period, a medium-sized reptile called Lystrosaurus left its remains in what are now Brazil, South Africa, India, Antarctica ...
20081 Study Guide_i-40
... 1. Because the technology for ocean-floor exploration was unavailable during Wegener’s lifetime, he was unable to offer conclusive evidence supporting his hypothesis. Not until the 1960s were scientists able to explore the ocean floor and discover evidence of seafloor spreading and convection curren ...
... 1. Because the technology for ocean-floor exploration was unavailable during Wegener’s lifetime, he was unable to offer conclusive evidence supporting his hypothesis. Not until the 1960s were scientists able to explore the ocean floor and discover evidence of seafloor spreading and convection curren ...
2.00 Bathymetry notes
... - occurs at the ______________ of the slopes & gently slope seaward to the deep sea floor __________________________________ +Occur along active margins (present-day plate boundaries) where _________________________ is taking place +deepest part of the ocean floor, typically 3 - 4 km deeper than sur ...
... - occurs at the ______________ of the slopes & gently slope seaward to the deep sea floor __________________________________ +Occur along active margins (present-day plate boundaries) where _________________________ is taking place +deepest part of the ocean floor, typically 3 - 4 km deeper than sur ...
Name Period
... 4. Wegener hypothesized that the continents formed part of a single land mass, or __________________. a. mid-ocean ridge. b. monocontinent. c. supercontinent. d. world land. 5. When did Wegener think that small continents began forming? ____________________________. a. 25 million years ago. b. 2.5 b ...
... 4. Wegener hypothesized that the continents formed part of a single land mass, or __________________. a. mid-ocean ridge. b. monocontinent. c. supercontinent. d. world land. 5. When did Wegener think that small continents began forming? ____________________________. a. 25 million years ago. b. 2.5 b ...
Geologic Setting and Evolution of Latin America
... The supercontinent cycle refers to the episodic aggregation and dispersal of continental crust Supercontinent is when most of the continental crust is found in a single large mass and is associated with a ‘Superocean’ Supercontinents form as the result of a protracted period of continent-continent c ...
... The supercontinent cycle refers to the episodic aggregation and dispersal of continental crust Supercontinent is when most of the continental crust is found in a single large mass and is associated with a ‘Superocean’ Supercontinents form as the result of a protracted period of continent-continent c ...
The Paleozoic/Mesozoic tectonic evolution of Eastern Australia
... Reconstruction of Eastern Australia in the Silurian (left), and revised APWP (right) Previous Apparent Polar Wander Paths (APWPs) for Gondwana during the mid-Paleozoic have relied on paleomagnetic data from the tectonically active parts of Eastern Australia. By incorporating available paleomagnetic ...
... Reconstruction of Eastern Australia in the Silurian (left), and revised APWP (right) Previous Apparent Polar Wander Paths (APWPs) for Gondwana during the mid-Paleozoic have relied on paleomagnetic data from the tectonically active parts of Eastern Australia. By incorporating available paleomagnetic ...
Journey to the bottom of the ocean (1)
... known point in the ocean. It is located in the western part of the Pacific Ocean near the fourteen Mariana Islands. • The Mariana Trench is a semi-circle that extends from the northeast to the southwest for about two thousand five hundred fifty meters and is seventy kilometers wide. ...
... known point in the ocean. It is located in the western part of the Pacific Ocean near the fourteen Mariana Islands. • The Mariana Trench is a semi-circle that extends from the northeast to the southwest for about two thousand five hundred fifty meters and is seventy kilometers wide. ...
Slide 1
... Since the breakup of Pangaea, the continents have taken about 200 million years to move to their present location. ...
... Since the breakup of Pangaea, the continents have taken about 200 million years to move to their present location. ...
• Internal Structure of Earth and Plate Tectonics • Chapter 2 The
... 135 million years -- North and South Atlantic Oceans begin to open, separating South America and Africa, Mediterranean Sea began to close as Africa began to rotate northward toward Asia 65 million years --North and South Atlantic Oceans joined; South America was new Continent and moving westward ...
... 135 million years -- North and South Atlantic Oceans begin to open, separating South America and Africa, Mediterranean Sea began to close as Africa began to rotate northward toward Asia 65 million years --North and South Atlantic Oceans joined; South America was new Continent and moving westward ...
EGU2009-944-2
... Our thermochronological data and modelled time-temperature histories suggest an earlier, relative fast cooling period during Early Triassic to Early Jurassic. This cooling event coincides temporally with the process of rifting that caused Pangaea continental break-up and the opening of the North Atl ...
... Our thermochronological data and modelled time-temperature histories suggest an earlier, relative fast cooling period during Early Triassic to Early Jurassic. This cooling event coincides temporally with the process of rifting that caused Pangaea continental break-up and the opening of the North Atl ...
Chapter 19, Plate Tectonics
... underlying upper mantle). Underlying convection currents in the mantle are thought to play a role in the movement of these plates. Intense geologic activity occurs where plates move apart (divergent boundaries), collide (convergent boundaries) or slide past one another (transform boundaries). About ...
... underlying upper mantle). Underlying convection currents in the mantle are thought to play a role in the movement of these plates. Intense geologic activity occurs where plates move apart (divergent boundaries), collide (convergent boundaries) or slide past one another (transform boundaries). About ...
Chapter 17 Plate Tectonics
... 5. How does the size of the Pacific Ocean on this map compare with its present size? Standard 2: Students will understand Earth’s internal structure and the dynamic nature of the tectonic plates that form its surface. Objective 2: Describe the development of the current theory of plate tectonics and ...
... 5. How does the size of the Pacific Ocean on this map compare with its present size? Standard 2: Students will understand Earth’s internal structure and the dynamic nature of the tectonic plates that form its surface. Objective 2: Describe the development of the current theory of plate tectonics and ...
Part D: Plate Tectonics: Types of Boundaries: Divergent
... 2. The type of convergence -- called by some a very slow "collision" -- that takes place between plates depends on the kind of lithosphere involved. Convergence can occur between what types of plates? a) b) c) Scroll down to: Oceanic-continental convergence 3. Off the coast of South America along th ...
... 2. The type of convergence -- called by some a very slow "collision" -- that takes place between plates depends on the kind of lithosphere involved. Convergence can occur between what types of plates? a) b) c) Scroll down to: Oceanic-continental convergence 3. Off the coast of South America along th ...
Chapter 11- Student Notes
... El Niño can change the weather around the world, including ___________________& ___________________in ________, and droughts in Africa and Australia. Changing ocean temperatures also cause __________ life to change behaviours. La ________ is a cooling of similar waters, and produces the opposite eff ...
... El Niño can change the weather around the world, including ___________________& ___________________in ________, and droughts in Africa and Australia. Changing ocean temperatures also cause __________ life to change behaviours. La ________ is a cooling of similar waters, and produces the opposite eff ...
Sea-floor spreading
... • Such rocks can form only when molten material hardens quickly after erupting under water • The presence of these rocks showed that molten material has erupted again and again from cracks along the central valley of the mid-ocean ridge. ...
... • Such rocks can form only when molten material hardens quickly after erupting under water • The presence of these rocks showed that molten material has erupted again and again from cracks along the central valley of the mid-ocean ridge. ...
Mr. Burton 2.3 Notes
... Theory of plate tectonics suggests that Earth’s surface is divided into a dozen or so slow-moving plates, or pieces of Earth’s crust. The idea that continents have traveled great distances over millions of years is known as continental drift. Theory, developed by Alfred Wegener, states that th ...
... Theory of plate tectonics suggests that Earth’s surface is divided into a dozen or so slow-moving plates, or pieces of Earth’s crust. The idea that continents have traveled great distances over millions of years is known as continental drift. Theory, developed by Alfred Wegener, states that th ...
Plate Tectonics
... 12. Why did most scientists reject Wegener’s hypothesis of continental drift? 13. Do you think the scientists of Wegener’s time should have accepted his hypothesis? Why or why not? ...
... 12. Why did most scientists reject Wegener’s hypothesis of continental drift? 13. Do you think the scientists of Wegener’s time should have accepted his hypothesis? Why or why not? ...
Unit R072/01 - How scientific ideas have developed - Insert
... and then check whether the lines of print ran smoothly across. If they do, there is nothing left but to conclude that the pieces were in fact joined in this way.” Wegener thought that all the continents had been joined in a super-continent about 300 million years ago. He called the super-continent P ...
... and then check whether the lines of print ran smoothly across. If they do, there is nothing left but to conclude that the pieces were in fact joined in this way.” Wegener thought that all the continents had been joined in a super-continent about 300 million years ago. He called the super-continent P ...
deep-ocean trench
... The coast of different continents are similar (especially the east coast of South America and the west coast of Africa). Similar rock formations and coal deposits found on different continents ...
... The coast of different continents are similar (especially the east coast of South America and the west coast of Africa). Similar rock formations and coal deposits found on different continents ...
Chapter 02 Earth Structure and Plate Tectonics
... 5. The refraction and shadow patterns of seismic P-waves and S-waves indicate the dimensions and properties of Earth's layers. 6. Shear waves do not pass through a solid liquid boundary between Earth's layers. Compressional waves can pass this type of boundary. 7. Oceanic-type crust is more dense th ...
... 5. The refraction and shadow patterns of seismic P-waves and S-waves indicate the dimensions and properties of Earth's layers. 6. Shear waves do not pass through a solid liquid boundary between Earth's layers. Compressional waves can pass this type of boundary. 7. Oceanic-type crust is more dense th ...
Chapter 18 – The Ocean Floor Outline (NOTE NEW CHAPTER TITLE)
... a. Over 70,000 kilometers (43,000 miles) in length b. Twenty-three percent of Earth’s surface c. Winds through all major oceans 3. Along the axis of some segments are deep downfaulted structures called rift valleys 4. Consist of layer upon layer of basaltic rocks that have been faulted and uplifted ...
... a. Over 70,000 kilometers (43,000 miles) in length b. Twenty-three percent of Earth’s surface c. Winds through all major oceans 3. Along the axis of some segments are deep downfaulted structures called rift valleys 4. Consist of layer upon layer of basaltic rocks that have been faulted and uplifted ...
Ch 5 S 4 Sea-Floor Spreading
... c. Subduction and Earth’s Oceans i. Subduction and sea-floor spreading can change the size and shape of the oceans ii. The ocean floor is renewed about every 200 million years iii.The Pacific Ocean covers almost 1/3 of Earth 1. It is shrinking 2. Sometimes a deep ocean trench swallows more oceanic ...
... c. Subduction and Earth’s Oceans i. Subduction and sea-floor spreading can change the size and shape of the oceans ii. The ocean floor is renewed about every 200 million years iii.The Pacific Ocean covers almost 1/3 of Earth 1. It is shrinking 2. Sometimes a deep ocean trench swallows more oceanic ...
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.