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... 12. Explain how the modern theory of plate tectonics developed in the context of the scientific method. ANSWER: The scientific method is based on logical analysis of data to solve problems. The evidence for continental drift and additional data such as magnetic patterns in the ocean-floor were used ...
... 12. Explain how the modern theory of plate tectonics developed in the context of the scientific method. ANSWER: The scientific method is based on logical analysis of data to solve problems. The evidence for continental drift and additional data such as magnetic patterns in the ocean-floor were used ...
Continental Formation - Department of Geosciences
... • We see these eclogites in 12 Ma volcanic rocks (as xenoliths)- we have direct evidence that they ...
... • We see these eclogites in 12 Ma volcanic rocks (as xenoliths)- we have direct evidence that they ...
Oceanic Crust - River Dell Regional School District
... backward angularly) seismic waves created by the earthquakes (see left diagram). That is, changes in the seismic velocity occur as the waves pass through different materials. Measuring these changes tell seismologists how many layers there are and the thickness and physical properties of each layer. ...
... backward angularly) seismic waves created by the earthquakes (see left diagram). That is, changes in the seismic velocity occur as the waves pass through different materials. Measuring these changes tell seismologists how many layers there are and the thickness and physical properties of each layer. ...
Late - to post-orogenic tectonic processes and exhumation
... The end of a Wilson cycle does not mark the end of the tectonic activity in a mountainbelt. In many orogenic belts high-grade rocks formed by the crustal-thickening during collision get quickly exhumed. In many instances the exhumation processes are too fast to be accounted for by erosion alone. We ...
... The end of a Wilson cycle does not mark the end of the tectonic activity in a mountainbelt. In many orogenic belts high-grade rocks formed by the crustal-thickening during collision get quickly exhumed. In many instances the exhumation processes are too fast to be accounted for by erosion alone. We ...
CHAPTER 3
... When the sea floor was finally extensively mapped following WWII, we discovered that there are major structural features that rival, and even surpass, any found on the continents. The sea floor has major mountain ranges, deep trenches, vast plateaus, and enormous faults. Harry Hess, in the early 196 ...
... When the sea floor was finally extensively mapped following WWII, we discovered that there are major structural features that rival, and even surpass, any found on the continents. The sea floor has major mountain ranges, deep trenches, vast plateaus, and enormous faults. Harry Hess, in the early 196 ...
plate boundaries
... _____________________ are bent, reflected, sped up, or delayed by the various layers. The Earth’s crust is divided into _________________major plates, which are moved in various directions. Plates move at very _____________________ rates – from about _________ to _________ centimeters per year; At o ...
... _____________________ are bent, reflected, sped up, or delayed by the various layers. The Earth’s crust is divided into _________________major plates, which are moved in various directions. Plates move at very _____________________ rates – from about _________ to _________ centimeters per year; At o ...
The Moving Story of Plate Tectonics
... United States. One part of California is on what is known as the Pacific plate. The other part of the state is on what is known as the North American plate. Scientists say the Pacific plate is moving toward the northwest, while the North American plate is moving toward the southeast. These two huge ...
... United States. One part of California is on what is known as the Pacific plate. The other part of the state is on what is known as the North American plate. Scientists say the Pacific plate is moving toward the northwest, while the North American plate is moving toward the southeast. These two huge ...
Unit Five Test Review
... 11. Explain our “best-guess” on how the Earth’s magnetic field is generated. 12. What are two uncertainties with our “best-guess” magnetic field explanations? ...
... 11. Explain our “best-guess” on how the Earth’s magnetic field is generated. 12. What are two uncertainties with our “best-guess” magnetic field explanations? ...
Earth Science – Quiz 2
... B) divergent C) convergent D) all plate boundaries 52. Linear, magnetic patterns associated with mid-ocean ridges are configured as ________. A) concentric circles about a rising plume of hot mantle rocks and magma B) reversed magnetizations along the rift valleys and normal magnetizations along the ...
... B) divergent C) convergent D) all plate boundaries 52. Linear, magnetic patterns associated with mid-ocean ridges are configured as ________. A) concentric circles about a rising plume of hot mantle rocks and magma B) reversed magnetizations along the rift valleys and normal magnetizations along the ...
Plate Tectonics Study Guide: Answer key
... Pangaea: Name of supercontinent that Wegener thought existed 250 million years ago. ...
... Pangaea: Name of supercontinent that Wegener thought existed 250 million years ago. ...
The NE-Atlantic system
... 2008; Døssing et al., 2010). Assuming that the onset of deep-water exchange depended on the formation of a narrow, oceanic corridor, the Fram Strait gateway between the Artic and NE-Atlantic oceans probably formed during early Miocene times (20–15 Ma) (Engen et al., 2008). Since the Eocene, mantle m ...
... 2008; Døssing et al., 2010). Assuming that the onset of deep-water exchange depended on the formation of a narrow, oceanic corridor, the Fram Strait gateway between the Artic and NE-Atlantic oceans probably formed during early Miocene times (20–15 Ma) (Engen et al., 2008). Since the Eocene, mantle m ...
Earths Internal Structure ws File
... Crust: The crust is the thin, solid, outermost layer of the Earth. The crust is composed mainly of basalt and granite and, with the uppermost part of the upper mantle, is broken into tectonic plates. The crust is cooler and more rigid than the deeper layers. The thickness of the crust varies conside ...
... Crust: The crust is the thin, solid, outermost layer of the Earth. The crust is composed mainly of basalt and granite and, with the uppermost part of the upper mantle, is broken into tectonic plates. The crust is cooler and more rigid than the deeper layers. The thickness of the crust varies conside ...
Studying collision and subduction mechanisms based on regional
... Along the Kur-Kam arc we observe a clear image of the subducting plate S.Kuriles: thicker and flatter slab; does not penetrate to the lower mantle (ridge push) N.Kuriles-S.Kamchatka: thin in the upper part; large drop in the lower part which penetrates to the lower mantle (slab pull) ...
... Along the Kur-Kam arc we observe a clear image of the subducting plate S.Kuriles: thicker and flatter slab; does not penetrate to the lower mantle (ridge push) N.Kuriles-S.Kamchatka: thin in the upper part; large drop in the lower part which penetrates to the lower mantle (slab pull) ...
Study Guide Geology 303, SDSU Spring PEOPLE for TEST 1: 1
... oldest seafloor rock that is 200 million years old (remember the seafloor is continually recycled). The age of the Earth has to be older than the oldest rocks and minerals, and is about 4.6 billion (4,600 million) years old. 15.(2)-Pangaea: A supercontinent that existed during Late Paleozoic time w ...
... oldest seafloor rock that is 200 million years old (remember the seafloor is continually recycled). The age of the Earth has to be older than the oldest rocks and minerals, and is about 4.6 billion (4,600 million) years old. 15.(2)-Pangaea: A supercontinent that existed during Late Paleozoic time w ...
plate tectonics
... • The upper mantle and crust (lithosphere) lie on the lower mantle which is fluid. The rocks in the lower mantle (asthenosphere) move in a fluid manner because of the high temperatures and pressures in it. • Currents in the lower mantle form convection cells which cause the plates to float. Types of ...
... • The upper mantle and crust (lithosphere) lie on the lower mantle which is fluid. The rocks in the lower mantle (asthenosphere) move in a fluid manner because of the high temperatures and pressures in it. • Currents in the lower mantle form convection cells which cause the plates to float. Types of ...
Plate Tectonics 1
... What was the Evidence Supporting Continental Drift? Alfred Wegner came up with the Continental Drift Hypothesis. His 5 pieces of evidence were: 1) Continents seemed to fit together 2) Similar fossils on each continent 3) Rocks matched (age and composition) 4) Glacial evidence – striations (scratche ...
... What was the Evidence Supporting Continental Drift? Alfred Wegner came up with the Continental Drift Hypothesis. His 5 pieces of evidence were: 1) Continents seemed to fit together 2) Similar fossils on each continent 3) Rocks matched (age and composition) 4) Glacial evidence – striations (scratche ...
Earth`s Structure Learning Targets
... asthenosphere cause the tectonic plate movement. The thermal energy in the core heats up the lower part of the “plastic” molten asthenosphere. Warm currents rise to the top of the asthenosphere. When it begins to cool, it starts to sink toward the bottom of the asthenosphere. Then the current warms ...
... asthenosphere cause the tectonic plate movement. The thermal energy in the core heats up the lower part of the “plastic” molten asthenosphere. Warm currents rise to the top of the asthenosphere. When it begins to cool, it starts to sink toward the bottom of the asthenosphere. Then the current warms ...
Untitled - Triumph Learning
... A model is a representation of an object, system, or process. A model may be a diagram, a three-dimensional object, or a computer program. A model may also be an idea or a mathematical formula. The diagram on page 15 is a model of Earth’s internal structure. Comparing the layers of Earth to the laye ...
... A model is a representation of an object, system, or process. A model may be a diagram, a three-dimensional object, or a computer program. A model may also be an idea or a mathematical formula. The diagram on page 15 is a model of Earth’s internal structure. Comparing the layers of Earth to the laye ...
Chapter 8 and 18 - Mr. Green's Home Page
... formed Grand canyon Rivers cut large plateau into several smaller ones ...
... formed Grand canyon Rivers cut large plateau into several smaller ones ...
Sample 5.3.B.2 Complete
... each works to help you to determine your direction of travel. (5.4.6.D.3) 2. Why will hikers probably get lost if they do not understand the difference between magnetic north and true north? (5.4.6.D.3) Have students investigate what is better for navigation a compass or a global positioning system ...
... each works to help you to determine your direction of travel. (5.4.6.D.3) 2. Why will hikers probably get lost if they do not understand the difference between magnetic north and true north? (5.4.6.D.3) Have students investigate what is better for navigation a compass or a global positioning system ...
Mantle Convection and Structure
... geologic process could enrich or re-enrich the mantle in the incompatible elements removed by melting? The answer is ultimately obvious - you have to introduce melts into the mantle. But how? ...
... geologic process could enrich or re-enrich the mantle in the incompatible elements removed by melting? The answer is ultimately obvious - you have to introduce melts into the mantle. But how? ...
Weathering and Erosion
... Stream Velocity varies from one side to the other side of the “S”, resulting in erosion in some places and deposition of sediments in others. ...
... Stream Velocity varies from one side to the other side of the “S”, resulting in erosion in some places and deposition of sediments in others. ...
Pangaea The Earth is divided into three layers
... We live on the crust and it’s the thinnest layer -the mountains to the desert to the ocean floor. Two thirds of the Earth’s mass is the mantle in between the core and the crust The core is a mystery but through volcanoes some of the mantle reaches us. Hey, it is thought Pangaea was when the continen ...
... We live on the crust and it’s the thinnest layer -the mountains to the desert to the ocean floor. Two thirds of the Earth’s mass is the mantle in between the core and the crust The core is a mystery but through volcanoes some of the mantle reaches us. Hey, it is thought Pangaea was when the continen ...
Y10 Earthquakes - Learning on the Loop
... Erosion loosens and carries away rock debris formed by ...
... Erosion loosens and carries away rock debris formed by ...
Lesson 1 - Humanities.Com
... Mantle - widest section of the Earth. Diameter of approximately 2900km. Made up of semi-molten rock called magma. In the upper parts of the mantle the rock is hard, but lower down the rock is soft and beginning to melt. Crust - outer layer of the earth. A thin layer between 0-60km thick. The crust i ...
... Mantle - widest section of the Earth. Diameter of approximately 2900km. Made up of semi-molten rock called magma. In the upper parts of the mantle the rock is hard, but lower down the rock is soft and beginning to melt. Crust - outer layer of the earth. A thin layer between 0-60km thick. The crust i ...
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.