Plate Tectonics Notes
... Matching rocks on different continents Land animals on different continents Glacial marks in now tropical areas Tropical plants in Antarctica ...
... Matching rocks on different continents Land animals on different continents Glacial marks in now tropical areas Tropical plants in Antarctica ...
Plate Tectonics, Layers, and Continental Drift Mini
... 20. If a diverging boundary took place on land what would form over time? a. mountain b. seafloor spreading c. volcano d. rift valley 21. What was the name of the single large landmass Wegener thought once existed? a. North America b. Pangaea c. Gondwana d. Euroasia 22. The continents are thought to ...
... 20. If a diverging boundary took place on land what would form over time? a. mountain b. seafloor spreading c. volcano d. rift valley 21. What was the name of the single large landmass Wegener thought once existed? a. North America b. Pangaea c. Gondwana d. Euroasia 22. The continents are thought to ...
Obj. 2.1.1 Layers of the Earth A
... 6. What is the major type of stress that occurs at convergent plate boundaries? a. shear stress c. tensional stress b. compressional stress d. erosional stress 7. Which of the following mountain ranges was formed by a continental-continental convergent boundary? a. the Andes Mountains c. the Himalay ...
... 6. What is the major type of stress that occurs at convergent plate boundaries? a. shear stress c. tensional stress b. compressional stress d. erosional stress 7. Which of the following mountain ranges was formed by a continental-continental convergent boundary? a. the Andes Mountains c. the Himalay ...
Plate Tectonics I
... able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
... able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
• earthquake locations define plate boundaries. • subduction of
... deeper earthquakes are in the subduction boundaries (continent - oceanic) earthquakes occour in the subducted part of the oceanic lithosphere, and moves deeper as the subducted oceanic plates sink downwards locations of earthquake sources in these regions reveal the geometry of the already subducted ...
... deeper earthquakes are in the subduction boundaries (continent - oceanic) earthquakes occour in the subducted part of the oceanic lithosphere, and moves deeper as the subducted oceanic plates sink downwards locations of earthquake sources in these regions reveal the geometry of the already subducted ...
History of Plate Tectonics PPT
... Is slab-pull accepted? • This is a relatively new idea, so it is not yet widely accepted by all of the scientific community even though it helps explain things like why the Pacific Ocean is shrinking while the Atlantic Ocean is growing. • There is a lot of controversy among geophysicists about whet ...
... Is slab-pull accepted? • This is a relatively new idea, so it is not yet widely accepted by all of the scientific community even though it helps explain things like why the Pacific Ocean is shrinking while the Atlantic Ocean is growing. • There is a lot of controversy among geophysicists about whet ...
Pd Study Guide
... small to swim in the ocean) --tropical plant fossils found in artic regions --coastlines of the continents fit together like puzzle pieces --mountain ranges on different continents lineup (Africa and South America) --coal found in artic regions --glacial grooves (Africa) found in rocks match up (war ...
... small to swim in the ocean) --tropical plant fossils found in artic regions --coastlines of the continents fit together like puzzle pieces --mountain ranges on different continents lineup (Africa and South America) --coal found in artic regions --glacial grooves (Africa) found in rocks match up (war ...
Plate Tectonics
... – Lithosphere (solid crust and upper mantle) is broken into plates. – Tectonic Plate- A large, solid piece of the earth’s crust that includes the continents and ocean floor. – These plates float or ride on the asthenosphere. ...
... – Lithosphere (solid crust and upper mantle) is broken into plates. – Tectonic Plate- A large, solid piece of the earth’s crust that includes the continents and ocean floor. – These plates float or ride on the asthenosphere. ...
1 IDS 102 Plate Tectonics Questions Part I: Observations
... Plate boundaries are divergent, oceanic-continental convergent, oceanic-oceanic convergent, continental-continental convergent, and transform. From our discussions of the plate boundary characteristics in class and your observations in Part I of this handout, label the boundaries of the plates shown ...
... Plate boundaries are divergent, oceanic-continental convergent, oceanic-oceanic convergent, continental-continental convergent, and transform. From our discussions of the plate boundary characteristics in class and your observations in Part I of this handout, label the boundaries of the plates shown ...
Water Fluxing - Research at UVU
... 1. Hot mantle rock rises to fill the gap created by the diverging plates. At hot spots, mantle rock rises because it is hotter than surrounding rock, much the way wax rises in a lava lamp. 2. As the hot mantle rock rises, it feels less pressure (it decompresses), yet its temperature doesn't change m ...
... 1. Hot mantle rock rises to fill the gap created by the diverging plates. At hot spots, mantle rock rises because it is hotter than surrounding rock, much the way wax rises in a lava lamp. 2. As the hot mantle rock rises, it feels less pressure (it decompresses), yet its temperature doesn't change m ...
Title: Physiography of the Ocean Basins
... asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by ...
... asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by ...
Plate Tectonics Basics – Tutorial Script - FOG
... asthenosphere will cause heat to pile up under certain portions of the lithosphere and cold material to sink under other parts. What does that do to the lithosphere? It causes it to break into pieces we call plates. Where heat rises, material must be pushed away in opposite directions to make room f ...
... asthenosphere will cause heat to pile up under certain portions of the lithosphere and cold material to sink under other parts. What does that do to the lithosphere? It causes it to break into pieces we call plates. Where heat rises, material must be pushed away in opposite directions to make room f ...
Continental Crust
... Iceland: An example of continental rifting • Iceland has a divergent plate boundary running through its middle ...
... Iceland: An example of continental rifting • Iceland has a divergent plate boundary running through its middle ...
The Benthic Zone
... - Project FAMOUS) discovered unique hydrothermal vent communities. • Vent communities found in all oceans at depths 1-2 miles down. ...
... - Project FAMOUS) discovered unique hydrothermal vent communities. • Vent communities found in all oceans at depths 1-2 miles down. ...
Print flyer - Loch Ness Productions
... pressures and temperatures of their alien environment. In addition to teaching about marine biology and ocean exploration, Into the Deep documents submersible exploration, and describes the basic physical principles that allow humans to venture safely into these otherworldly landscapes. Audiences wi ...
... pressures and temperatures of their alien environment. In addition to teaching about marine biology and ocean exploration, Into the Deep documents submersible exploration, and describes the basic physical principles that allow humans to venture safely into these otherworldly landscapes. Audiences wi ...
C3.3 The crust C3.3.1 Oceanic crust
... • Above is an example of non-uniqueness. Two models with different Moho depths both fit the same data. • We now know that the crust is composed of lighter material, formed over geological time through a process of differentiation and fractionation. ...
... • Above is an example of non-uniqueness. Two models with different Moho depths both fit the same data. • We now know that the crust is composed of lighter material, formed over geological time through a process of differentiation and fractionation. ...
Z SR Midterm Test Review
... Draw and label an example of sea floor spreading in the box below. Be sure to include and label: molten material (magma) convection current motion and direction mid-ocean ridge crust direction direction of rock/crust movement crust, lithosphere, asthenosphere, lower mantle location of ...
... Draw and label an example of sea floor spreading in the box below. Be sure to include and label: molten material (magma) convection current motion and direction mid-ocean ridge crust direction direction of rock/crust movement crust, lithosphere, asthenosphere, lower mantle location of ...
Mid-Ocean Ridges que..
... 5. How far does the sea-floor spread each year on average? Tectonic Processes at the Mid-Ocean Ridge 1. The tectonic processes at diverging plate boundaries are less violent than at other types of boundaries. Suggest three reasons for this. 2. The most common type of volcanic activity in the world o ...
... 5. How far does the sea-floor spread each year on average? Tectonic Processes at the Mid-Ocean Ridge 1. The tectonic processes at diverging plate boundaries are less violent than at other types of boundaries. Suggest three reasons for this. 2. The most common type of volcanic activity in the world o ...
Plate Tectonic Study Guide 2014-Answer Guide
... asthenosphere which causes the material to circulate ...
... asthenosphere which causes the material to circulate ...
plates
... What evidence do we have to support this idea? o Mid-ocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Mid-ocean ridge rocks are younger than surrounding ocean floor rocks o Mid-ocean ridge volcanoes are younger than volcanoes further away ...
... What evidence do we have to support this idea? o Mid-ocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Mid-ocean ridge rocks are younger than surrounding ocean floor rocks o Mid-ocean ridge volcanoes are younger than volcanoes further away ...
Theory of Plate Tectonics
... bends downward and digs deep into the Earth. A trench forms at the bend. All that folding and bending makes rock in both plates break and slip, causing earthquakes. As the edge of the oceanic plate digs into Earth's hot interior, some of the rock in it melts. The melted rock rises up through the con ...
... bends downward and digs deep into the Earth. A trench forms at the bend. All that folding and bending makes rock in both plates break and slip, causing earthquakes. As the edge of the oceanic plate digs into Earth's hot interior, some of the rock in it melts. The melted rock rises up through the con ...
2013年1月12日托福写作真题回忆
... On the other hand, the theory is implausible because convection does not normally occur along lines, and it certainly does not occur along lines broken by frequent offsets (an abrupt bend in an object by which one part is turned aside out of line) or changes in direction, as the ridge is. Also it is ...
... On the other hand, the theory is implausible because convection does not normally occur along lines, and it certainly does not occur along lines broken by frequent offsets (an abrupt bend in an object by which one part is turned aside out of line) or changes in direction, as the ridge is. Also it is ...
Name: Class: Date: Convergent Boundaries (All answers must be in
... The size of the Earth has not changed significantly during the past 600 million years, and very likely not since shortly after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmis ...
... The size of the Earth has not changed significantly during the past 600 million years, and very likely not since shortly after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmis ...
Abyssal plain
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. Abyssal plains are key geologic elements of oceanic basins (the other elements being an elevated mid-ocean ridge and flanking abyssal hills). In addition to these elements, active oceanic basins (those that are associated with a moving plate tectonic boundary) also typically include an oceanic trench and a subduction zone.Abyssal plains were not recognized as distinct physiographic features of the sea floor until the late 1940s and, until very recently, none had been studied on a systematic basis. They are poorly preserved in the sedimentary record, because they tend to be consumed by the subduction process. The creation of the abyssal plain is the end result of spreading of the seafloor (plate tectonics) and melting of the lower oceanic crust. Magma rises from above the asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons down into deeper water. The remainder of the sediment is composed chiefly of pelagic sediments. Metallic nodules are common in some areas of the plains, with varying concentrations of metals, including manganese, iron, nickel, cobalt, and copper. These nodules may provide a significant resource for future mining ventures.Owing in part to their vast size, abyssal plains are currently believed to be a major reservoir of biodiversity. The abyss also exerts significant influence upon ocean carbon cycling, dissolution of calcium carbonate, and atmospheric CO2 concentrations over timescales of 100–1000 years. The structure and function of abyssal ecosystems are strongly influenced by the rate of flux of food to the seafloor and the composition of the material that settles. Factors such as climate change, fishing practices, and ocean fertilization are expected to have a substantial effect on patterns of primary production in the euphotic zone. This will undoubtedly impact the flux of organic material to the abyss in a similar manner and thus have a profound effect on the structure, function and diversity of abyssal ecosystems.