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PHS 111 Test 1 Review Chapters 20-22
... How did seafloor spreading suggest a driving force for continental drift? Youngest seafloor is found near continents; Seafloor spreading pushes continents; Mantle convection causes irreversible slippage; Subduction creates the youngest seafloor. Plate tectonics states that: the continents move throu ...
... How did seafloor spreading suggest a driving force for continental drift? Youngest seafloor is found near continents; Seafloor spreading pushes continents; Mantle convection causes irreversible slippage; Subduction creates the youngest seafloor. Plate tectonics states that: the continents move throu ...
What is the name of the SUPERCONTINENT that was once one land
... • Heat transfers by movement of currents in liquids and gasses. This is caused by differences in temperature and density. An example of this type of heat transfer occurs when mantle rock moves from near the core, towards the crust, and back again. A. Radiation B. Conduction C. Convection D. Compact ...
... • Heat transfers by movement of currents in liquids and gasses. This is caused by differences in temperature and density. An example of this type of heat transfer occurs when mantle rock moves from near the core, towards the crust, and back again. A. Radiation B. Conduction C. Convection D. Compact ...
Currents: Upwelling What is an upwelling current? Why are they
... along coastlines. The phenomenon is known as an Ekman current or the Ekman Spiral. Along the margins of continents where strong winds prevail, upwelling is an important feature of oceanic circulation. It brings the cold, nutrient-rich deeper waters to the surface, providing a supply of nutrients to ...
... along coastlines. The phenomenon is known as an Ekman current or the Ekman Spiral. Along the margins of continents where strong winds prevail, upwelling is an important feature of oceanic circulation. It brings the cold, nutrient-rich deeper waters to the surface, providing a supply of nutrients to ...
Earth`s Interior
... speed, geologists can determine the interior of the Earth. A Journey to the Center of Earth Temperature and pressure both increases from the surface to the center. The Earth has three main parts: 1. The crust is a layer of rock that forms Earth’s outer skin. There are two types of crust basalt (the ...
... speed, geologists can determine the interior of the Earth. A Journey to the Center of Earth Temperature and pressure both increases from the surface to the center. The Earth has three main parts: 1. The crust is a layer of rock that forms Earth’s outer skin. There are two types of crust basalt (the ...
IDS 102 Plate Tectonics Questions Part I: Observations
... decreases the pressure on the peridotite causing the partial melting forming basalt from the peridotite. The basaltic magma then moves toward the Earth’s surface because it is less dense. ...
... decreases the pressure on the peridotite causing the partial melting forming basalt from the peridotite. The basaltic magma then moves toward the Earth’s surface because it is less dense. ...
History of Marine Science 2
... 1872, HMS Challenger was the first scientific voyage. It lasted only 3 years, but took 20 years to analyze the data collected. ...
... 1872, HMS Challenger was the first scientific voyage. It lasted only 3 years, but took 20 years to analyze the data collected. ...
plates - bethwallace
... pudding in a pan you can watch the convection currents move in the liquid. When the convection currents flow in the mantle they also move the crust. The crust gets a free ride with these currents. A conveyor belt in a factory moves boxes like the convection currents in the mantle moves the plates of ...
... pudding in a pan you can watch the convection currents move in the liquid. When the convection currents flow in the mantle they also move the crust. The crust gets a free ride with these currents. A conveyor belt in a factory moves boxes like the convection currents in the mantle moves the plates of ...
06SC_TEST7 - Secondary Science Wiki
... One hundred million years later, this supercontinent began to break up and move apart. Not until about 30 years ago did scientists understand why this movement occurred. The theory of plate tectonics was supported by many scientists because it answered the questions they had about the connections be ...
... One hundred million years later, this supercontinent began to break up and move apart. Not until about 30 years ago did scientists understand why this movement occurred. The theory of plate tectonics was supported by many scientists because it answered the questions they had about the connections be ...
6th Grade Science Formative Assessment 5 Multiple Choice
... One hundred million years later, this supercontinent began to break up and move apart. Not until about 30 years ago did scientists understand why this movement occurred. The theory of plate tectonics was supported by many scientists because it answered the questions they had about the connections be ...
... One hundred million years later, this supercontinent began to break up and move apart. Not until about 30 years ago did scientists understand why this movement occurred. The theory of plate tectonics was supported by many scientists because it answered the questions they had about the connections be ...
Student report - cloudfront.net
... reactions. This website also showed diffuse flow and chimneys. The life forms of the vents depend on this process for survival. Life in the vent community was a surprise discovery in 1979. Due to the toxic chemicals and lack of light, only certain organisms can survive. Another difficult aspect is t ...
... reactions. This website also showed diffuse flow and chimneys. The life forms of the vents depend on this process for survival. Life in the vent community was a surprise discovery in 1979. Due to the toxic chemicals and lack of light, only certain organisms can survive. Another difficult aspect is t ...
Plate Tectonic Theory
... earth sciences must contribute evidence toward unveiling the state of our planet in earlier times, and that the truth of the matter can only be reached by combing all this evidence. . . It is only by combing the information furnished by all the earth sciences that we can hope to determine 'truth' he ...
... earth sciences must contribute evidence toward unveiling the state of our planet in earlier times, and that the truth of the matter can only be reached by combing all this evidence. . . It is only by combing the information furnished by all the earth sciences that we can hope to determine 'truth' he ...
PLATE TECTONICS REVIEW SHEET Write rock or metal to indicate
... 16. What happens along the Ring of Fire and what type of boundary is to blame? _Volcanic Eruptions caused by convergent plate boundaries with subduction.___________________________________________________ 17. The North American plate is diverging from the Eurasian plate. What is happening to the Atl ...
... 16. What happens along the Ring of Fire and what type of boundary is to blame? _Volcanic Eruptions caused by convergent plate boundaries with subduction.___________________________________________________ 17. The North American plate is diverging from the Eurasian plate. What is happening to the Atl ...
tectonics2a
... Mid-Ocean Ridges Mid-ocean ridges are long mountains formed parallel to oceanic rifts. ...
... Mid-Ocean Ridges Mid-ocean ridges are long mountains formed parallel to oceanic rifts. ...
Word
... (2) it must be an oceancontinent plate boundary B. (1) a crater (2) it must be a volcano C. (1) constant elevation (2) the collision between India and Asia is now complete D. (1) glacial features (2) it used to be near the south pole as part of Gondwana E. (1) sea shell fossils (2) it is made of old ...
... (2) it must be an oceancontinent plate boundary B. (1) a crater (2) it must be a volcano C. (1) constant elevation (2) the collision between India and Asia is now complete D. (1) glacial features (2) it used to be near the south pole as part of Gondwana E. (1) sea shell fossils (2) it is made of old ...
PHS 111 Test 1 Review Answers Chapters 20-22
... the continents has moved; our radioactive dating techniques have been inaccurate; the continents have always been widely separated. How did seafloor spreading suggest a driving force for continental drift? Youngest seafloor is found near continents; continents; Mantle convection causes irreversible ...
... the continents has moved; our radioactive dating techniques have been inaccurate; the continents have always been widely separated. How did seafloor spreading suggest a driving force for continental drift? Youngest seafloor is found near continents; continents; Mantle convection causes irreversible ...
Exam 1
... 20. When magma rises toward the surface from deep in the mantle, a. the decrease in pressure promotes further melting b. the pressure increases and causes the rock to solidify c. no change in pressure can occur d. the decrease in pressure usually prevents volcanism 21. A rock with large amphibole ph ...
... 20. When magma rises toward the surface from deep in the mantle, a. the decrease in pressure promotes further melting b. the pressure increases and causes the rock to solidify c. no change in pressure can occur d. the decrease in pressure usually prevents volcanism 21. A rock with large amphibole ph ...
Driving along the ocean floor
... Hydrothermal vents, which are much like geysers, are often found near underwater volcanoes. These are holes in the ocean floor. They can be small cracks or large formations that look like chimneys. They release hot water, around 350 degrees Celsius, that is rich with minerals.Islands formed by volca ...
... Hydrothermal vents, which are much like geysers, are often found near underwater volcanoes. These are holes in the ocean floor. They can be small cracks or large formations that look like chimneys. They release hot water, around 350 degrees Celsius, that is rich with minerals.Islands formed by volca ...
Marine Mineral Resources - International Seabed Authority
... Polymetallic massive sulphides are types of minerals discovered in the oceans in 1979 that were previously known only from deposits that have been mined on land since pre-classical times for copper, iron, zinc, silver and gold. Massive sulphides are deposited around seafloor hot springs (the most im ...
... Polymetallic massive sulphides are types of minerals discovered in the oceans in 1979 that were previously known only from deposits that have been mined on land since pre-classical times for copper, iron, zinc, silver and gold. Massive sulphides are deposited around seafloor hot springs (the most im ...
Plate Boundary
... Which is not something that was used to support Continental drift hypothesis? A. The fit of the continents B. The alignment of mountains C. The locations of fossils on various continents D. The arrangement of unique rocks on continents E. All of the above were used to support Continental Drift hypo ...
... Which is not something that was used to support Continental drift hypothesis? A. The fit of the continents B. The alignment of mountains C. The locations of fossils on various continents D. The arrangement of unique rocks on continents E. All of the above were used to support Continental Drift hypo ...
Unit 4.2 Test Review Layer Composition Thickness State of Matter
... 12. Continental crust is _more / less _ dense than oceanic crust. 13. When two plates slide past each other in opposite directions they can cause ____earthquakes____ such as those found along the San Andreas Fault in California. 14. A stress is a ____force____ that acts on a rock to change its shape ...
... 12. Continental crust is _more / less _ dense than oceanic crust. 13. When two plates slide past each other in opposite directions they can cause ____earthquakes____ such as those found along the San Andreas Fault in California. 14. A stress is a ____force____ that acts on a rock to change its shape ...
requirements necessary to obtain an Oceanography Merit Badge
... ocean affect the chemical composition of seawater. Explain how differences in evaporation and precipitation affect the salt content of the oceans. 6. Describe some of the biologically important properties of seawater. Define benthos, nekton, and plankton. Name some of the plants and animals that mak ...
... ocean affect the chemical composition of seawater. Explain how differences in evaporation and precipitation affect the salt content of the oceans. 6. Describe some of the biologically important properties of seawater. Define benthos, nekton, and plankton. Name some of the plants and animals that mak ...
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.