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... Describe Alfred Wegener’s theory of continental drift. Be specific and very detailed! About 225 million years ago, all the continents were one huge supercontinent, called Pangaea. Pangaea split and the continents drifted into their current positions. Describe all the types of evidence that supports ...
... Describe Alfred Wegener’s theory of continental drift. Be specific and very detailed! About 225 million years ago, all the continents were one huge supercontinent, called Pangaea. Pangaea split and the continents drifted into their current positions. Describe all the types of evidence that supports ...
IGCSE Physical Geography
... An earthquake is the vibration of the Earth’s crust caused by shock waves travelling outwards from sudden movement deep within the crust. The source is the focus which is directly below the epicentre on the surface. Shockwaves are measured on a seismograph which measures the magnitude on the Richter ...
... An earthquake is the vibration of the Earth’s crust caused by shock waves travelling outwards from sudden movement deep within the crust. The source is the focus which is directly below the epicentre on the surface. Shockwaves are measured on a seismograph which measures the magnitude on the Richter ...
Year 4-Tectonic Landscapes Exam Skills 1
... located example, of the Mid-Atlantic constructive boundary. ...
... located example, of the Mid-Atlantic constructive boundary. ...
Volcanoes and Igneous Activity Earth
... igneous activity Plate motions provide the mechanism by which mantle rocks melt to form magma • Convergent plate boundaries • Descending plate partially melts • Magma slowly rises upward • Rising magma can form • Volcanic island arcs in an ocean (Aleutian Islands) • Continental volcanic arcs (Andes ...
... igneous activity Plate motions provide the mechanism by which mantle rocks melt to form magma • Convergent plate boundaries • Descending plate partially melts • Magma slowly rises upward • Rising magma can form • Volcanic island arcs in an ocean (Aleutian Islands) • Continental volcanic arcs (Andes ...
ES11_Ch09_Lecture
... igneous activity Plate motions provide the mechanism by which mantle rocks melt to form magma • Convergent plate boundaries • Descending plate partially melts • Magma slowly rises upward • Rising magma can form • Volcanic island arcs in an ocean (Aleutian Islands) • Continental volcanic arcs (Andes ...
... igneous activity Plate motions provide the mechanism by which mantle rocks melt to form magma • Convergent plate boundaries • Descending plate partially melts • Magma slowly rises upward • Rising magma can form • Volcanic island arcs in an ocean (Aleutian Islands) • Continental volcanic arcs (Andes ...
Earth`s Structure - SD43 Teacher Sites
... will find rock. Earth’s outer layer of rock is called crust. The crust extends under the ocean and is between less then 5Km thick to 50Km thick. This is not very thick when you compare it to the center of the Earth (approx 6441Km). The crust is approx. 10ºC. ...
... will find rock. Earth’s outer layer of rock is called crust. The crust extends under the ocean and is between less then 5Km thick to 50Km thick. This is not very thick when you compare it to the center of the Earth (approx 6441Km). The crust is approx. 10ºC. ...
Color and Lenses - Thomas C. Cario Middle School
... 8. The _____________ is made up of the crust and upper mantle (100 km deep). ...
... 8. The _____________ is made up of the crust and upper mantle (100 km deep). ...
Study Guide: Academic Standard 8-3 Earth`s Structure and Processes
... Convection currents deep inside Earth can cause the asthenosphere to flow slowly carrying with it the plates of the lithosphere. This movement of plates changes the sizes, shapes and positions of Earth’s continents and oceans. Divergent Boundary: Where two plates are moving apart: most located a ...
... Convection currents deep inside Earth can cause the asthenosphere to flow slowly carrying with it the plates of the lithosphere. This movement of plates changes the sizes, shapes and positions of Earth’s continents and oceans. Divergent Boundary: Where two plates are moving apart: most located a ...
Cenozoic Tectonics & Life
... • North American plate came into contact with the Pacific Plate moving in different directions, the San Andreas Fault formed. • Because of this there is little volcanic activity beneath central and southern California ...
... • North American plate came into contact with the Pacific Plate moving in different directions, the San Andreas Fault formed. • Because of this there is little volcanic activity beneath central and southern California ...
Chapter 4: geography and earth questions
... At the base of what structure do you find deep sea fans? (submarine canyons) Where do you find a megaplume? (above hydrothermal vents) What element is often a large part of a megaplume? (Sulfur) How long is the chain of midoceanic ridges? (65,000km or 40,000 miles) What forms at the divergent plate ...
... At the base of what structure do you find deep sea fans? (submarine canyons) Where do you find a megaplume? (above hydrothermal vents) What element is often a large part of a megaplume? (Sulfur) How long is the chain of midoceanic ridges? (65,000km or 40,000 miles) What forms at the divergent plate ...
Chapter 4: geography and earth questions
... At the base of what structure do you find deep sea fans? (submarine canyons) Where do you find a megaplume? (above hydrothermal vents) What element is often a large part of a megaplume? (Sulfur) How long is the chain of midoceanic ridges? (65,000km or 40,000 miles) What forms at the divergent plate ...
... At the base of what structure do you find deep sea fans? (submarine canyons) Where do you find a megaplume? (above hydrothermal vents) What element is often a large part of a megaplume? (Sulfur) How long is the chain of midoceanic ridges? (65,000km or 40,000 miles) What forms at the divergent plate ...
Terrestrial and Extraterrestrial Basalts
... and mineralogies that are broadly similar to terrestrial basalts. • Eucrites and Howardites all have ancient crystallization ages of ~4.6 Ga. Again very different from Earth and the Moon. • Oxygen isotopic ratios are distinct from terrestrial rocks, thus they are derived from a different region in t ...
... and mineralogies that are broadly similar to terrestrial basalts. • Eucrites and Howardites all have ancient crystallization ages of ~4.6 Ga. Again very different from Earth and the Moon. • Oxygen isotopic ratios are distinct from terrestrial rocks, thus they are derived from a different region in t ...
Inferred Properties about Earth`s Interior
... 4. Now we are ready to practice reading this chart. ...
... 4. Now we are ready to practice reading this chart. ...
plate tectonics - Trupia
... earth by drawing together many branches of the earth sciences. It has provided explanations to questions that scientists had speculated ...
... earth by drawing together many branches of the earth sciences. It has provided explanations to questions that scientists had speculated ...
Word format
... The theory of plate tectonics began as an unproven concept of introduced in 1910 by Alfred Wegener, called: A. seafloor spreading B. subduction C. continental drift D. paleomagnetic reversals E. jigsaw geology Evidence that North America used to be connected to Europe is given by the fact that the f ...
... The theory of plate tectonics began as an unproven concept of introduced in 1910 by Alfred Wegener, called: A. seafloor spreading B. subduction C. continental drift D. paleomagnetic reversals E. jigsaw geology Evidence that North America used to be connected to Europe is given by the fact that the f ...
8.1 Earth has several layers
... Oceanic-oceanic subduction (ocean and ocean) • oceanic-oceanic subduction—occurs where one plate with oceanic crust sinks under another plate with oceanic crust • When oceanic crusts meet, the older crust sinks because it is colder and denser than the younger crust • The older crust sinks into the ...
... Oceanic-oceanic subduction (ocean and ocean) • oceanic-oceanic subduction—occurs where one plate with oceanic crust sinks under another plate with oceanic crust • When oceanic crusts meet, the older crust sinks because it is colder and denser than the younger crust • The older crust sinks into the ...
ReviewTest3-4-14-15-16-17-18
... 38. Which of the following combinations should favor folding rather than faulting? a. high temperature and low confining pressure b. low confining pressure and low temperature c. high confining pressure and low temperature d. high temperature and high confining pressure 39. Compressional stress can ...
... 38. Which of the following combinations should favor folding rather than faulting? a. high temperature and low confining pressure b. low confining pressure and low temperature c. high confining pressure and low temperature d. high temperature and high confining pressure 39. Compressional stress can ...
Semester 1 Exam Study Guide Stars ESS1-1 1. HS-ESS1
... A. stratovolcanoes associated with subduction and a convergent plate boundary B. shield volcanoes associated with a mid-Pacific ridge and spreading center C. shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate D. stratovolcanoes associated with a mid-Pacific transform ...
... A. stratovolcanoes associated with subduction and a convergent plate boundary B. shield volcanoes associated with a mid-Pacific ridge and spreading center C. shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate D. stratovolcanoes associated with a mid-Pacific transform ...
Earthquake Notes
... Fault - A fracture in the earthʼs crust where there has already been some movement Focus - Point of origin of earthquakes where waves travel outward in all directions Crust - Outermost layer of the earth Mantle - A layer of earth that lies beneath the crust Lithosphere - Outer portion of the earth c ...
... Fault - A fracture in the earthʼs crust where there has already been some movement Focus - Point of origin of earthquakes where waves travel outward in all directions Crust - Outermost layer of the earth Mantle - A layer of earth that lies beneath the crust Lithosphere - Outer portion of the earth c ...
Plate Tectonics - MsPetersensScienceScholars
... 2. Click on the assignment that says “Tectonic Forces” 3. Click “Start Here” at the bottom of the screen and listen to the information. Then, close out that window. 4. Click a boundary from the box that says “Choose a type of boundary” at the top of the screen. 5. Click the white circles to see what ...
... 2. Click on the assignment that says “Tectonic Forces” 3. Click “Start Here” at the bottom of the screen and listen to the information. Then, close out that window. 4. Click a boundary from the box that says “Choose a type of boundary” at the top of the screen. 5. Click the white circles to see what ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.