For Creative Minds - Arbordale Publishing
... are available online. Go to ArbordalePublishing.com and click on the book’s cover to explore all the links. ...
... are available online. Go to ArbordalePublishing.com and click on the book’s cover to explore all the links. ...
The Sea Floor
... 10. Which of the following is not true of oceanic crust? A. It is thinner than continental crust B. It is denser than continental crust C. It is geologically younger than continental crust D. It lies below sea level E. It consists mostly of granite 11. Which of the following is not true of mid-ocea ...
... 10. Which of the following is not true of oceanic crust? A. It is thinner than continental crust B. It is denser than continental crust C. It is geologically younger than continental crust D. It lies below sea level E. It consists mostly of granite 11. Which of the following is not true of mid-ocea ...
Modeling the Ocean Floor Lab
... varying slope that stretches from the beach to the Ocean Basin Floor. The Margin is divided into three different areas determined by the slope of their features. The Continental Shelf is flat like a shelf used to hold items in a house. The Continental Slope is a steep cliff-like area that contains m ...
... varying slope that stretches from the beach to the Ocean Basin Floor. The Margin is divided into three different areas determined by the slope of their features. The Continental Shelf is flat like a shelf used to hold items in a house. The Continental Slope is a steep cliff-like area that contains m ...
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 ...
Zone
... • Rate at which an ecosystem’s producers convert solar energy into chemical energy stored in their tissues ...
... • Rate at which an ecosystem’s producers convert solar energy into chemical energy stored in their tissues ...
Homework Set 1
... 3. Does every earthquake-producing fault extend all the way from the surface of the Earth down to the base of the seismogenic zone? Explain your answer with a short paragraph that describes the size and extent of faults in both the vertical and horizontal directions inside the Earth’s crust. (or in ...
... 3. Does every earthquake-producing fault extend all the way from the surface of the Earth down to the base of the seismogenic zone? Explain your answer with a short paragraph that describes the size and extent of faults in both the vertical and horizontal directions inside the Earth’s crust. (or in ...
Oceanography Review! Told you it was short!
... 6. Due to landforms and the Earth’s rotation, ocean currents form huge circuits (circles) in the world’s oceans called what? 10. The oceans contain approximately _____________% of all the Earth’s water. ...
... 6. Due to landforms and the Earth’s rotation, ocean currents form huge circuits (circles) in the world’s oceans called what? 10. The oceans contain approximately _____________% of all the Earth’s water. ...
Chapter 18 – The Ocean Floor Outline (NOTE NEW CHAPTER TITLE)
... b. Twenty-three percent of Earth’s surface c. Winds through all major oceans 3. Along the axis of some segments are deep downfaulted structures called rift valleys 4. Consist of layer upon layer of basaltic rocks that have been faulted and uplifted 5. Mid-Atlantic Ridge has been studied more thoroug ...
... b. Twenty-three percent of Earth’s surface c. Winds through all major oceans 3. Along the axis of some segments are deep downfaulted structures called rift valleys 4. Consist of layer upon layer of basaltic rocks that have been faulted and uplifted 5. Mid-Atlantic Ridge has been studied more thoroug ...
plate tectonic study guide
... more dense as it is pushed further to the sides and eventually sinks into a subduction zone. The old oceanic crust then goes to the asthenosphere where it melts and recycles back to the mid-ocean ridge. 22. Where do most faults occur? (at transform boundary- earthquakes) - a fault is a break in the ...
... more dense as it is pushed further to the sides and eventually sinks into a subduction zone. The old oceanic crust then goes to the asthenosphere where it melts and recycles back to the mid-ocean ridge. 22. Where do most faults occur? (at transform boundary- earthquakes) - a fault is a break in the ...
Earthsci1
... of sea-floor spreading, then some must be getting smaller, otherwise the total volume of the earth would also have to increase commensurate with the increase in size of the surface area of the Earth. Since the Atlantic ocean is increasing in size whereas the Pacific is decreasing in size, the infere ...
... of sea-floor spreading, then some must be getting smaller, otherwise the total volume of the earth would also have to increase commensurate with the increase in size of the surface area of the Earth. Since the Atlantic ocean is increasing in size whereas the Pacific is decreasing in size, the infere ...
Name: Date: Period:____ Study Guide for Plate Tectonics Key 1
... 1. What is the theory of continental drift? Who was founded the theory? ...
... 1. What is the theory of continental drift? Who was founded the theory? ...
KEY
... 2. What are the relationships among mantle convection, ocean ridges, and subduction zones? Upward mantle convection is thought to be associated with ridges, while downward mantle convection is associated with subduction zones. 3. Hypothesize what might happen to mantle convection currents beneath a ...
... 2. What are the relationships among mantle convection, ocean ridges, and subduction zones? Upward mantle convection is thought to be associated with ridges, while downward mantle convection is associated with subduction zones. 3. Hypothesize what might happen to mantle convection currents beneath a ...
File
... Pangaea. Pangaea split and the continents drifted into their current positions. Describe all the types of evidence that supports Wegener’s theory of continental drift. Be specific and very detailed! ~ continents fit together like puzzle pieces ~ fossils of plants and animals from different continent ...
... Pangaea. Pangaea split and the continents drifted into their current positions. Describe all the types of evidence that supports Wegener’s theory of continental drift. Be specific and very detailed! ~ continents fit together like puzzle pieces ~ fossils of plants and animals from different continent ...
inside earth
... Name of single landmass that broke apart 200 million years ago and gave rise to today’s continents. ...
... Name of single landmass that broke apart 200 million years ago and gave rise to today’s continents. ...
Subduction zones
... Plates come together and are destroyed at converging plate boundaries. The great pressures exerted when plates collide create spectacular features. ...
... Plates come together and are destroyed at converging plate boundaries. The great pressures exerted when plates collide create spectacular features. ...
and Wilson cycle tectonics
... mountain belts have a close relationship to the opening and closure of oceans with oceanic lithosphere. Hence he introduced the term ”the Proto-Atlantic” as a name for the postulated ocean that according to the model once opened and closed to produce the Appalachians and the Caledonides ...
... mountain belts have a close relationship to the opening and closure of oceans with oceanic lithosphere. Hence he introduced the term ”the Proto-Atlantic” as a name for the postulated ocean that according to the model once opened and closed to produce the Appalachians and the Caledonides ...
Dynamic Earth
... the East Pacific Rise (latitude 21° north) in 1979. Such geothermal vents--called smokers because they resemble chimneys--spew dark, mineral-rich, fluids heated by contact with the newly formed, stillhot oceanic crust. This photograph shows a black smoker, but smokers can also be white, grey, or cle ...
... the East Pacific Rise (latitude 21° north) in 1979. Such geothermal vents--called smokers because they resemble chimneys--spew dark, mineral-rich, fluids heated by contact with the newly formed, stillhot oceanic crust. This photograph shows a black smoker, but smokers can also be white, grey, or cle ...
Name: Class: Date: Divergent Boundaries (All answers must be in
... Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge ...
... Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge ...
Geological Features
... It is made up of low hills and flat plains. The flat area of the ocean basin is called the abyssal plain. Seamounts are generally formed on the ocean basin. 5-3.3 - Compare continental and oceanic landforms. It is essential for students to know that Earth is made of solid land. Some of the land ...
... It is made up of low hills and flat plains. The flat area of the ocean basin is called the abyssal plain. Seamounts are generally formed on the ocean basin. 5-3.3 - Compare continental and oceanic landforms. It is essential for students to know that Earth is made of solid land. Some of the land ...
Plate Tectonics Study guide - Grants Pass School District 7
... 13. _____ Place where sea-floor spreading takes place. ...
... 13. _____ Place where sea-floor spreading takes place. ...
C16: THE MARINE ENVIRONMENT
... d. if not carrying all the sediment it can, it will erode the surfaces it passes by 5. rip currents = narrow currents that flow seaward at right angles to shoreline a. flow out to sea through gaps in longshore bar b. return water spilled into longshore trough to open ocean c. can reach speeds of sev ...
... d. if not carrying all the sediment it can, it will erode the surfaces it passes by 5. rip currents = narrow currents that flow seaward at right angles to shoreline a. flow out to sea through gaps in longshore bar b. return water spilled into longshore trough to open ocean c. can reach speeds of sev ...
full spreading rate
... If new sea floor is being created at spreading centres, then old sea floor must be being destroyed somewhere else. The oldest sea floor lies adjacent to deep ocean trenches, which are major topographic features that partially surround the Pacific Ocean and are found in the peripheral regions of othe ...
... If new sea floor is being created at spreading centres, then old sea floor must be being destroyed somewhere else. The oldest sea floor lies adjacent to deep ocean trenches, which are major topographic features that partially surround the Pacific Ocean and are found in the peripheral regions of othe ...
Tectonic Plates
... • Sea‐floor spreading is where new oceanic lithosphere forms as magma rises toward the surface and solidifies. ...
... • Sea‐floor spreading is where new oceanic lithosphere forms as magma rises toward the surface and solidifies. ...
Inside Earth - Davis` Dazzlers
... o At the mid-ocean ridge, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. The molten rock cools and forms new land (salt) as the plates move. The older plate sinks below the other plate and can make mountains and/ ...
... o At the mid-ocean ridge, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. The molten rock cools and forms new land (salt) as the plates move. The older plate sinks below the other plate and can make mountains and/ ...
Types of plate boundaries
... Some of the worlds larges mountain chains are formed along these boundaries • Alps and Himalayas are examples ...
... Some of the worlds larges mountain chains are formed along these boundaries • Alps and Himalayas are examples ...
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.