Article Summary The tectonic plates do not
... at a major scientific conference on subduction processes in June 1994 that "subduction . . . plays a more fundamental role than seafloor spreading in shaping the earth's surface features" and "running the plate tectonic machinery." The gravity-controlled sinking of a cold, denser oceanic slab into t ...
... at a major scientific conference on subduction processes in June 1994 that "subduction . . . plays a more fundamental role than seafloor spreading in shaping the earth's surface features" and "running the plate tectonic machinery." The gravity-controlled sinking of a cold, denser oceanic slab into t ...
Plate Tectonics
... come together, or converge. The result of the plates hitting together is called a collision. ...
... come together, or converge. The result of the plates hitting together is called a collision. ...
plate tectonics
... mantle is forced upward to the surface at midocean ridges and cools to form new sea floor. Movement in Earth’s mantle forces sections of crust apart, allowing magma to flow onto Earth’s surface and form new crust. Therefore, the Atlantic Ocean is wider today than it was when Christopher Columbus cro ...
... mantle is forced upward to the surface at midocean ridges and cools to form new sea floor. Movement in Earth’s mantle forces sections of crust apart, allowing magma to flow onto Earth’s surface and form new crust. Therefore, the Atlantic Ocean is wider today than it was when Christopher Columbus cro ...
Lecture 2 - School of Earth and Environment
... • When the currents in the mantle carry one plate down • It melts and volcanoes are produced ...
... • When the currents in the mantle carry one plate down • It melts and volcanoes are produced ...
Chapter2.pdf
... gases (labeled as other gases on the diagram). Trace gases consist of compounds like carbon dioxide (CO2) and methane (CH4). Although trace gases are present in very small amounts, they play important roles in climate warming because they tend to absorb and reflect back to the surface long-wave radi ...
... gases (labeled as other gases on the diagram). Trace gases consist of compounds like carbon dioxide (CO2) and methane (CH4). Although trace gases are present in very small amounts, they play important roles in climate warming because they tend to absorb and reflect back to the surface long-wave radi ...
Plate Tectonics Crossword
... Alfred _______ is credited with developing the theory of continental drift. ...
... Alfred _______ is credited with developing the theory of continental drift. ...
PowerPoint Lecture Chapter 12
... volcanic island arcs 2). As plates converge, stress builds, which could be released as tsunami-causing earthquakes ...
... volcanic island arcs 2). As plates converge, stress builds, which could be released as tsunami-causing earthquakes ...
Plate Tectonics for Website
... Atlantic Ocean was created by this process. The mid-Atlantic Ridge is an area where new sea floor is being created. As the rift valley expands two continental plates have been constructed from the original one. The molten rock continues to push the crust apart creating new crust as it does. As the r ...
... Atlantic Ocean was created by this process. The mid-Atlantic Ridge is an area where new sea floor is being created. As the rift valley expands two continental plates have been constructed from the original one. The molten rock continues to push the crust apart creating new crust as it does. As the r ...
FINAL PROJECT
... generated by a sudden dislocation of segments of the crust, by a volcanic eruption, or event by manmade explosions. Most destructive quakes, however, are caused by dislocations of the crust. ...
... generated by a sudden dislocation of segments of the crust, by a volcanic eruption, or event by manmade explosions. Most destructive quakes, however, are caused by dislocations of the crust. ...
Name
... _____ 14. Seismic waves that travel along Earth’s surface are a. surface waves. b. body waves. c. secondary waves. _____ 15. Which of the following is the fastest type of seismic wave? a. surface waves b. S waves c. P waves _____ 16. An S wave is unable to travel through a. solids. b. liquid. c. roc ...
... _____ 14. Seismic waves that travel along Earth’s surface are a. surface waves. b. body waves. c. secondary waves. _____ 15. Which of the following is the fastest type of seismic wave? a. surface waves b. S waves c. P waves _____ 16. An S wave is unable to travel through a. solids. b. liquid. c. roc ...
Study outline for Oceanography
... 7. Compare and contrast Protoearth, and early Earth with modern Earth. 8. Describe density stratification in Earth and the resultant chemical structure. Be able to rouighly characterize the crust, mantle, and inner and outer core with respect to density and composition. 9. Describe the physical stru ...
... 7. Compare and contrast Protoearth, and early Earth with modern Earth. 8. Describe density stratification in Earth and the resultant chemical structure. Be able to rouighly characterize the crust, mantle, and inner and outer core with respect to density and composition. 9. Describe the physical stru ...
the proof-----seafloor spreading
... •An American scientist named Harry Hess proposed the seafloor spreading theory in ...
... •An American scientist named Harry Hess proposed the seafloor spreading theory in ...
File
... Atlantic Ocean floor. How many grams of Potassim-40 will be left from a 80g sample after 3,000 years? (If you forgot this, go watch the videos in Unit 1…) ...
... Atlantic Ocean floor. How many grams of Potassim-40 will be left from a 80g sample after 3,000 years? (If you forgot this, go watch the videos in Unit 1…) ...
Material properties and microstructure from
... +7 ± 3 ppm relative to the modern convecting mantle in a 2.7 Gyr old tholeiitic lava flow from the Abitibi Greenstone Belt in the Canadian Craton. Our result effectively extends the early Archean convective mixing time to ~1.8 Gyr, i.e. even longer than present-day mantle mixing timescale [3], despi ...
... +7 ± 3 ppm relative to the modern convecting mantle in a 2.7 Gyr old tholeiitic lava flow from the Abitibi Greenstone Belt in the Canadian Craton. Our result effectively extends the early Archean convective mixing time to ~1.8 Gyr, i.e. even longer than present-day mantle mixing timescale [3], despi ...
Grade 8 Science
... Plate Tectonics – huge rock plates that slip and slide under the earth’s crust and on top of the mantle. Glaciation – freezing of fresh water into large slabs of ice that usually does not thaw easily. Continental margin – the continental shelf and slope together. Continiental shelf – made from erosi ...
... Plate Tectonics – huge rock plates that slip and slide under the earth’s crust and on top of the mantle. Glaciation – freezing of fresh water into large slabs of ice that usually does not thaw easily. Continental margin – the continental shelf and slope together. Continiental shelf – made from erosi ...
Plate Tectonics Vocabulary
... Directions: Cut out the definitions below and paste them next to the correct vocabulary word. ...
... Directions: Cut out the definitions below and paste them next to the correct vocabulary word. ...
Earth Science Vocabulary
... 7. Core – Earth’s innermost layer (center) a.) outer is composed of liquid iron & nickel b.) inner is composed of solid iron & nickel 8. Crust – Earth’s outermost layer (thinnest layer) a.) continental is found under the continents, composed of granite b.) oceanic is found under the oceans, composed ...
... 7. Core – Earth’s innermost layer (center) a.) outer is composed of liquid iron & nickel b.) inner is composed of solid iron & nickel 8. Crust – Earth’s outermost layer (thinnest layer) a.) continental is found under the continents, composed of granite b.) oceanic is found under the oceans, composed ...
Standard 1a
... 1. The tectonic plates make the world look like a jigsaw puzzle. a. They fit together nicely. b. Some plates contain both oceanic and continental plates. 2. How fast do the plates move? a. Usually so slow you can’t see or feel it move. i. They move centimeters per year. ...
... 1. The tectonic plates make the world look like a jigsaw puzzle. a. They fit together nicely. b. Some plates contain both oceanic and continental plates. 2. How fast do the plates move? a. Usually so slow you can’t see or feel it move. i. They move centimeters per year. ...
Plate tectonics
... Pre-assessment 1. Earth’s mantle plays an important role in plate tectonics. Why is the mantle so important to this process? A. B. C. D. ...
... Pre-assessment 1. Earth’s mantle plays an important role in plate tectonics. Why is the mantle so important to this process? A. B. C. D. ...
SIO15 Final Exam, Friday Dec. 9, 2016 TEST VARIATION: 2
... b) a few years c) a few decades d) a few centuries e) a few thousand years 98) What happens to fisheries off the coast of Peru during an El Niño? a) huge increase b) huge decrease c) marked increase in salmon d) a decline as a result of particularly high catches by fishermen 99) What originally trig ...
... b) a few years c) a few decades d) a few centuries e) a few thousand years 98) What happens to fisheries off the coast of Peru during an El Niño? a) huge increase b) huge decrease c) marked increase in salmon d) a decline as a result of particularly high catches by fishermen 99) What originally trig ...
Plate Tectonics
... earth and become part of the “ground water” (infiltration). Some water infiltrates deep into the ground and replenishes aquifers (saturated subsurface rock), which store huge amounts of freshwater for long periods of time. Some infiltration stays close to the land surface and can seep back into surf ...
... earth and become part of the “ground water” (infiltration). Some water infiltrates deep into the ground and replenishes aquifers (saturated subsurface rock), which store huge amounts of freshwater for long periods of time. Some infiltration stays close to the land surface and can seep back into surf ...
Unit 10 video notes
... ________________________________. Convection currents are caused by the very ________________________ at the deepest part of the mantle _____________, then __________________ and __________________ again --____________________this cycle over and over. The Outer Core The core of the Earth is like a _ ...
... ________________________________. Convection currents are caused by the very ________________________ at the deepest part of the mantle _____________, then __________________ and __________________ again --____________________this cycle over and over. The Outer Core The core of the Earth is like a _ ...
Post-glacial rebound
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Post-glacial rebound (sometimes called continental rebound) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostatic depression. Post-glacial rebound and isostatic depression are different parts of a process known as either glacial isostasy, glacial isostatic adjustment, or glacioisostasy. Glacioisostasy is the solid Earth deformation associated with changes in ice mass distribution. The most obvious and direct affects of post-glacial rebound are readily apparent in northern Europe (especially Scotland, Estonia, Latvia, Fennoscandia, and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, the coastal region of the US state of Maine, parts of Patagonia, and Antarctica. However, through processes known as ocean siphoning and continental levering, the effects of post-glacial rebound on sea-level are felt globally far from the locations of current and former ice sheets.