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Ch 2 test
... 16. The continental rise is located ____________. a. at the top of a mid-ocean ridge b. at the top of the continental slope c. between an abyssal plain and continental slope d. at the seaward edge of a deep ocean trench ...
... 16. The continental rise is located ____________. a. at the top of a mid-ocean ridge b. at the top of the continental slope c. between an abyssal plain and continental slope d. at the seaward edge of a deep ocean trench ...
Plate Tectonics
... Lithosphere is broken into plates Plates float on moving asthenosphere (upper mantle) Plate motion driven by heat in mantle Plates interact – especially at edges ...
... Lithosphere is broken into plates Plates float on moving asthenosphere (upper mantle) Plate motion driven by heat in mantle Plates interact – especially at edges ...
Ocean and Climate
... Atmosphere is vertically structured with high altitude events impacting climate. The role of ocean is limited to the surface layers Atmospheric currents (winds) are largely unbounded. Oceans are laterally bounded by continents (except for southern ocean where fluid can pass around the globe) ...
... Atmosphere is vertically structured with high altitude events impacting climate. The role of ocean is limited to the surface layers Atmospheric currents (winds) are largely unbounded. Oceans are laterally bounded by continents (except for southern ocean where fluid can pass around the globe) ...
Plate Tectonics 2006
... -Convection is the movement of heated material due to differences in density caused by differences in temperature. The Earth is a convection system! Heat (energy) comes from radioactive elements within the Earth’s core. ...
... -Convection is the movement of heated material due to differences in density caused by differences in temperature. The Earth is a convection system! Heat (energy) comes from radioactive elements within the Earth’s core. ...
Convergent Plate Boundary Diagrams
... 3._________________________________________ 6. _________________________________________ a. What is created during a continental-continental collision? ...
... 3._________________________________________ 6. _________________________________________ a. What is created during a continental-continental collision? ...
Notes: The Theory of Plate Tectonics
... These _________ formed a ring around the Pacific, characterized by ___________ and strong _____________ called the “________ ____ _______ ” With the discovery that ______ crust was being formed at Mid-Ocean ________ and _______ crust was being recycled at ________, Wegener’s ideas got a new leas ...
... These _________ formed a ring around the Pacific, characterized by ___________ and strong _____________ called the “________ ____ _______ ” With the discovery that ______ crust was being formed at Mid-Ocean ________ and _______ crust was being recycled at ________, Wegener’s ideas got a new leas ...
How Do Earthquakes Tell Us About the Earth`s Interior?
... • Transform-fault margins: – Two plates slide past one another ...
... • Transform-fault margins: – Two plates slide past one another ...
chapter7 - Everglades High School
... About 3.5% (35‰) of seawater consists of dissolved substances. These almost always exist as ions – “salts” do not exist in the ocean. The most abundant ions dissolved in seawater are chloride, sodium, and sulfate. Seawater is not concentrated river water or rain water – its chemical composition has ...
... About 3.5% (35‰) of seawater consists of dissolved substances. These almost always exist as ions – “salts” do not exist in the ocean. The most abundant ions dissolved in seawater are chloride, sodium, and sulfate. Seawater is not concentrated river water or rain water – its chemical composition has ...
Example
... are in slow, constant motion, driven by convection currents in the mantle. • PT explains the formation, movement, and subduction of Earth’s plates ...
... are in slow, constant motion, driven by convection currents in the mantle. • PT explains the formation, movement, and subduction of Earth’s plates ...
Marine Microbial Processes Outline
... • Small phytoplankton cells enhance the importance of microbial grazers and increases the level of nitrogen recycling in the upper ...
... • Small phytoplankton cells enhance the importance of microbial grazers and increases the level of nitrogen recycling in the upper ...
Chapter 23 Test Review Notes
... One method of obtaining a sample of sea-floor sediment with its layers preserved involves using a gravity corer. Passive continental margins are characterized by the presence of coastal plains. Suppose sound travels at an average rate of 1500 meters per second through seawater above a particul ...
... One method of obtaining a sample of sea-floor sediment with its layers preserved involves using a gravity corer. Passive continental margins are characterized by the presence of coastal plains. Suppose sound travels at an average rate of 1500 meters per second through seawater above a particul ...
Plate Tectonics
... mapping the ocean floor with a fathometer - a type of sonar that used echo sounding to help ships know where the bottom of the ocean floor was. He proposed that hot, less dense material below the crust rises toward the surface at the mid ocean ridges, flowing sideways, carrying the seafloor away fro ...
... mapping the ocean floor with a fathometer - a type of sonar that used echo sounding to help ships know where the bottom of the ocean floor was. He proposed that hot, less dense material below the crust rises toward the surface at the mid ocean ridges, flowing sideways, carrying the seafloor away fro ...
Earth,Notes,RevQs,Ch13
... mainly by passive, continental margins and turbidity currents with their sediment load can move far out into the deeper parts of the ocean basin. The abyssal plain marks the smooth, upper surface of turbidity current sediments deposited on the original, basaltic bedrock of the ocean floor. For the m ...
... mainly by passive, continental margins and turbidity currents with their sediment load can move far out into the deeper parts of the ocean basin. The abyssal plain marks the smooth, upper surface of turbidity current sediments deposited on the original, basaltic bedrock of the ocean floor. For the m ...
The Diversity of Ocean Life
... slope The neritic zone is often shallow enough to put all of it in the photic zone, and is so rich with life that it supports 90% of the world’s commercial fisheries Oceanic Zone – area beyond the continental shelf Surface waters in the oceanic zone tend to not have many nutrients as they sink down ...
... slope The neritic zone is often shallow enough to put all of it in the photic zone, and is so rich with life that it supports 90% of the world’s commercial fisheries Oceanic Zone – area beyond the continental shelf Surface waters in the oceanic zone tend to not have many nutrients as they sink down ...
Name - Schoolwires.net
... together in a single landmass and have drifted apart.. Wegener also speculated on sea-floor spreading and the role of the mid-ocean ridges Continental drift hypothesis that continents are in constant motion plate tectonic-theory that says the Earth’s surface is made up of rigid rock or plates that m ...
... together in a single landmass and have drifted apart.. Wegener also speculated on sea-floor spreading and the role of the mid-ocean ridges Continental drift hypothesis that continents are in constant motion plate tectonic-theory that says the Earth’s surface is made up of rigid rock or plates that m ...
1-4 Section Summary
... At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle, over tens of millions of years. The processes of subduction and sea-floor spreading can change the size and shape of the oceans. Because of these processes, the ocean floor is renewed about every 200 mill ...
... At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle, over tens of millions of years. The processes of subduction and sea-floor spreading can change the size and shape of the oceans. Because of these processes, the ocean floor is renewed about every 200 mill ...
An Introduction to the Seafloor and Plate Tectonics
... relative to others: divergent, convergent, and transform (or strike-slip) margins. The following diagram shows the movement of one plate with respect to another for the three types of margins, and plates are bound on all sides by one or more of these types: Divergent Margins ...
... relative to others: divergent, convergent, and transform (or strike-slip) margins. The following diagram shows the movement of one plate with respect to another for the three types of margins, and plates are bound on all sides by one or more of these types: Divergent Margins ...
amino acids
... It is released from the rocks and sediment through chemical weathering. It is usually released from sediments in the form of phosphate (PO4-3), which is very soluble and can be absorbed from the soil by plants. Phosphorus is a limiting factor in the growth of plants, so plants that are exposed to ...
... It is released from the rocks and sediment through chemical weathering. It is usually released from sediments in the form of phosphate (PO4-3), which is very soluble and can be absorbed from the soil by plants. Phosphorus is a limiting factor in the growth of plants, so plants that are exposed to ...
Oceanic Lithosphere
... surface are caused by normal faults in the subducting oceanic lithosphere. As the plate is subducted, it is forced to bend, so the upper part is put under tension, this causes the normal faulting. Another reason why shallow earthquakes occur is due to the process of “underthrusting”, where the subdu ...
... surface are caused by normal faults in the subducting oceanic lithosphere. As the plate is subducted, it is forced to bend, so the upper part is put under tension, this causes the normal faulting. Another reason why shallow earthquakes occur is due to the process of “underthrusting”, where the subdu ...
The dangers of ocean acidification.
... Another way to document this process is to make repeated measurements of carbon on the same piece of ocean. One must be careful to distinguish the fossil carbon from the various biological sources of this element in the sea. And the observations need to span a decade or more to reveal the overall tr ...
... Another way to document this process is to make repeated measurements of carbon on the same piece of ocean. One must be careful to distinguish the fossil carbon from the various biological sources of this element in the sea. And the observations need to span a decade or more to reveal the overall tr ...
Week 3 (Norton), part b (pdf, 5.7 MB)
... Note that along the mid-Atlantic ridge only spreading is taking place. The only convergence zone being experienced by the edges of the Eurasian Plate is where the Indian Plate is jamming into its southern edge, where the Himalayan upthrust is taking place. Major convergences where marine crust is su ...
... Note that along the mid-Atlantic ridge only spreading is taking place. The only convergence zone being experienced by the edges of the Eurasian Plate is where the Indian Plate is jamming into its southern edge, where the Himalayan upthrust is taking place. Major convergences where marine crust is su ...
Cycles presentation
... and animals to make proteins. Nitrogen makes up about 78% of the atmosphere. However, nitrogen deficiency is the most common cause of poor plant growth. Why are plants unable to use the nitrogen straight from the air? Nitrogen gas (N2) is unreactive and is not easily converted into other compounds. ...
... and animals to make proteins. Nitrogen makes up about 78% of the atmosphere. However, nitrogen deficiency is the most common cause of poor plant growth. Why are plants unable to use the nitrogen straight from the air? Nitrogen gas (N2) is unreactive and is not easily converted into other compounds. ...
Anoxic event
![](https://commons.wikimedia.org/wiki/Special:FilePath/Aquatic_Dead_Zones.jpg?width=300)
Oceanic anoxic events or anoxic events (Anoxia conditions) refer to intervals in the Earth's past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - euxinia refers to anoxic waters that contain H2S hydrogen sulfide. Although anoxic events have not happened for millions of years, the geological record shows that they happened many times in the past. Anoxic events coincide with several mass extinctions and may contribute to these events. These mass extinctions include some that geobiologists use as time markers in biostratigraphic dating. It is believed oceanic anoxic events are strongly linked to slowing of ocean circulation, climatic warming and elevated levels of greenhouse gases. Enhanced volcanism (through the release of CO2 and other greenhouse gases) is the proposed central external trigger for the development of these events.