1 Science 8 Unit 1: Water Systems on Earth Chapter 2: Oceans
... - Glaciers move materials towards the oceans. ...
... - Glaciers move materials towards the oceans. ...
Unit 1_homework (.doc)
... the atmosphere. The Southern Ocean takes up approximately 60 percent of the anthropogenic heat produced on Earth and 40 to 50 percent of the anthropogenic carbon dioxide.” Here’s what the article says about how atmospheric CO2 is taken up: “In conducting photosynthesis, the phytoplankton take up car ...
... the atmosphere. The Southern Ocean takes up approximately 60 percent of the anthropogenic heat produced on Earth and 40 to 50 percent of the anthropogenic carbon dioxide.” Here’s what the article says about how atmospheric CO2 is taken up: “In conducting photosynthesis, the phytoplankton take up car ...
Ocean basins
... Earth (that’s more than 1.5x the circumference of the Earth) • In some places, these ridges actually project upward to the surface to form islands, such as Iceland, the Azores, and Easter Island • Oceanic ridges rise 1.5 miles above the seafloor and account for 22% of the world’s solid surface area ...
... Earth (that’s more than 1.5x the circumference of the Earth) • In some places, these ridges actually project upward to the surface to form islands, such as Iceland, the Azores, and Easter Island • Oceanic ridges rise 1.5 miles above the seafloor and account for 22% of the world’s solid surface area ...
Marine Science Unit 7 1. are underwater, volcanic mountains with
... separated over time and _____________ to their present locations. 15. A theory known as ___________________ suggests that Earth’s outermost layer, or _____________, is separated into 12 or more large pieces or plates. 16. The ____________________ is the 5-mile-thick plate which lies beneath oceans. ...
... separated over time and _____________ to their present locations. 15. A theory known as ___________________ suggests that Earth’s outermost layer, or _____________, is separated into 12 or more large pieces or plates. 16. The ____________________ is the 5-mile-thick plate which lies beneath oceans. ...
Picture Review Name
... zones, 23.5- 66.5 degrees N and S are the temperate zones, United States is in the Northern zone. 0- 23.5 degrees is the tropical zone. 113. Which zones are polar zones? 114. Which zone is a tropical zone? 115. Which zones are temperate zones? 116. Which continent lies almost completely within the t ...
... zones, 23.5- 66.5 degrees N and S are the temperate zones, United States is in the Northern zone. 0- 23.5 degrees is the tropical zone. 113. Which zones are polar zones? 114. Which zone is a tropical zone? 115. Which zones are temperate zones? 116. Which continent lies almost completely within the t ...
2015-16 - School of Earth Sciences
... On Jupiter, pressures reach 100 GPa at a depth of 12,000 km. Using the expression in ii., estimate the pressure [in GPa] at the centre of the planet at the depth of 72,000 km. ...
... On Jupiter, pressures reach 100 GPa at a depth of 12,000 km. Using the expression in ii., estimate the pressure [in GPa] at the centre of the planet at the depth of 72,000 km. ...
Name:
... 1. What is a volcano? ________________________________________________________________ 2. A molten mixture of rock-forming substance, gases, and water from the mantle is referred to as __________. 3. When magma reaches the surface, it is called ___________. Volcanoes and Plate Boundaries (p. 217-218 ...
... 1. What is a volcano? ________________________________________________________________ 2. A molten mixture of rock-forming substance, gases, and water from the mantle is referred to as __________. 3. When magma reaches the surface, it is called ___________. Volcanoes and Plate Boundaries (p. 217-218 ...
What are the causes of plate Movement?
... A thin layer on the outside of the earth. The crust is broken into smaller pieces, these pieces are known as plates. Plates float on the mantle and can move around. Plate A huge section of the earths crust that floats on the mantle ...
... A thin layer on the outside of the earth. The crust is broken into smaller pieces, these pieces are known as plates. Plates float on the mantle and can move around. Plate A huge section of the earths crust that floats on the mantle ...
ch7 answers to SG
... plate subducts under the continental plate. 24. What type of fault occurs on a transform boundary? Strike-slip Fault 25. The core of the earth is divided into a liquid outer core and a solid inner core, but both are made of what element? Iron 26. Thermal energy transfer is responsible for the convec ...
... plate subducts under the continental plate. 24. What type of fault occurs on a transform boundary? Strike-slip Fault 25. The core of the earth is divided into a liquid outer core and a solid inner core, but both are made of what element? Iron 26. Thermal energy transfer is responsible for the convec ...
Moving Plates: Restless Earth
... Wegener’s theory stated that over the years, Pangaea split into the continents and drifted apart. A problem with Wegener’s theory, though, was that he thought the continents floated on the ocean floor like icebergs. In the 1960’s, scientists used new discoveries about the sea floor to develop a theo ...
... Wegener’s theory stated that over the years, Pangaea split into the continents and drifted apart. A problem with Wegener’s theory, though, was that he thought the continents floated on the ocean floor like icebergs. In the 1960’s, scientists used new discoveries about the sea floor to develop a theo ...
PLATE TECTONICS
... • During break up of a continent Rifting, basaltic eruptions, uplift Extension- normal faults, rift valley (graben) forms Shallow focus earthquakes • Continental crust separates Fault blocks along edges Oceanic crust created Rock salt may develop in rift DIVERGENT BOUNDARIES • Continuing divergence ...
... • During break up of a continent Rifting, basaltic eruptions, uplift Extension- normal faults, rift valley (graben) forms Shallow focus earthquakes • Continental crust separates Fault blocks along edges Oceanic crust created Rock salt may develop in rift DIVERGENT BOUNDARIES • Continuing divergence ...
11 EG SP Exam 1 Review
... How old is the Earth? What is thought to have caused the extinctions of the dinosaurs? Diagram the rock cycle Diagram the hydrologic cycle Chapter 2 Minerals Do minerals with the lowest silica content melt at the lowest temperatures? What is the definition of a mineral? Which of the following is not ...
... How old is the Earth? What is thought to have caused the extinctions of the dinosaurs? Diagram the rock cycle Diagram the hydrologic cycle Chapter 2 Minerals Do minerals with the lowest silica content melt at the lowest temperatures? What is the definition of a mineral? Which of the following is not ...
File - First Colonial Oceanography
... He saw lava oozing from an area where two plates of the Earth's crust are spreading apart. In which ocean was this discovery made? (38°N, 32°W) 1975: The United States established the first National Marine Sanctuary to protect the wreck of a Civil War ship that sank in an 1862 storm. The ship, calle ...
... He saw lava oozing from an area where two plates of the Earth's crust are spreading apart. In which ocean was this discovery made? (38°N, 32°W) 1975: The United States established the first National Marine Sanctuary to protect the wreck of a Civil War ship that sank in an 1862 storm. The ship, calle ...
Quick Quiz Plate Tectonics Introduction to Plate Tectonics
... Link segments of the spreading areas ...
... Link segments of the spreading areas ...
9.4 Testing Plate Tectonics 9.5 Mechanisms of Plate Motions
... • Scientists found a close link between deep-focus earthquakes and ocean trenches. • The absence of deep-focus earthquakes along the oceanic ridge system was shown to be consistent with the new theory. ...
... • Scientists found a close link between deep-focus earthquakes and ocean trenches. • The absence of deep-focus earthquakes along the oceanic ridge system was shown to be consistent with the new theory. ...
Notes # ______ Sea Floor Spreading Mid Ocean Ridge underwater
... Subduction and sea floor spreading are changing the size and shape of the oceans. The Mid Atlantic Ridge is spreading the Atlantic Ocean at a rate of about 1 inch per year. There are only a few small trenches in the Atlantic Ocean, so the Atlantic is spreading faster than it is being ...
... Subduction and sea floor spreading are changing the size and shape of the oceans. The Mid Atlantic Ridge is spreading the Atlantic Ocean at a rate of about 1 inch per year. There are only a few small trenches in the Atlantic Ocean, so the Atlantic is spreading faster than it is being ...
Earth, continental drift, plate tectonics, sea floor spreading
... beneath a deepocean trench and back into the mantle; allows part of the ocean floor to sink back into the mantle ...
... beneath a deepocean trench and back into the mantle; allows part of the ocean floor to sink back into the mantle ...
European Research Council funds 2D ultra
... Earth and has hosted a series of large earthquakes, including the 1994 Mw=7.1 earthquake. It is approximately 40 km wide, and consists of a deep valley reaching to a water depth of 6200 m along our profile, bounded by ridges that rise up to 1700 m below the sea surface. These fracture zones have als ...
... Earth and has hosted a series of large earthquakes, including the 1994 Mw=7.1 earthquake. It is approximately 40 km wide, and consists of a deep valley reaching to a water depth of 6200 m along our profile, bounded by ridges that rise up to 1700 m below the sea surface. These fracture zones have als ...
Picture Review Name
... zones, 23.5- 66.5 degrees N and S are the temperate zones, United States is in the Northern zone. 0- 23.5 degrees is the tropical zone. 113. Which zones are polar zones? 114. Which zone is a tropical zone? 115. Which zones are temperate zones? 116. Which continent lies almost completely within the t ...
... zones, 23.5- 66.5 degrees N and S are the temperate zones, United States is in the Northern zone. 0- 23.5 degrees is the tropical zone. 113. Which zones are polar zones? 114. Which zone is a tropical zone? 115. Which zones are temperate zones? 116. Which continent lies almost completely within the t ...
Earth and Space Science Semester 2 Exam Review Part 1
... - Lithospheric plates converge at a Convergent Plate Boundary (Oceanic-Continental, Continental-Continental and Oceanic-Oceanic convergence). -With the exception of Continental-Continental convergence, the subducting plate is consumed and recycled as it descends into the Mantle. ...
... - Lithospheric plates converge at a Convergent Plate Boundary (Oceanic-Continental, Continental-Continental and Oceanic-Oceanic convergence). -With the exception of Continental-Continental convergence, the subducting plate is consumed and recycled as it descends into the Mantle. ...
ES 104 key points about tectonics 1. The oceanic ridge system is the
... ES 104 key points about tectonics 1. The oceanic ridge system is the most prominent topographic feature on Earth’s surface a. It is a product of high heat flow lifting the lithosphere at the upwelling of a convection cell. The rift valley in the central area is a minor feature. b. Magma is created a ...
... ES 104 key points about tectonics 1. The oceanic ridge system is the most prominent topographic feature on Earth’s surface a. It is a product of high heat flow lifting the lithosphere at the upwelling of a convection cell. The rift valley in the central area is a minor feature. b. Magma is created a ...
Powerpoint Presentation Physical Geology, 10/e
... Abyssal Plains • Abyssal plains: – Very flat regions at base of continental rise. – Composed of horizontal sediment layers probably deposited by turbidity currents. – Flattest features on the Earth. ...
... Abyssal Plains • Abyssal plains: – Very flat regions at base of continental rise. – Composed of horizontal sediment layers probably deposited by turbidity currents. – Flattest features on the Earth. ...
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.