Video Study Guide: Earth Revealed
... How do divergent and convergent boundaries work to keep earth the same size? ...
... How do divergent and convergent boundaries work to keep earth the same size? ...
Passive continental margins
... • Over 70,000 kilometers (43,000 miles) in length • Twenty-three percent of Earth’s surface • Winds through all major oceans ...
... • Over 70,000 kilometers (43,000 miles) in length • Twenty-three percent of Earth’s surface • Winds through all major oceans ...
Chapter 8 Study Guide – Earthquakes 1. What is an earthquake
... Continental puzzle, matching fossils, rock types and structures, ancient climates 3. By finding identical fossils in Africa and South America, what does this suggest? Africa and South America had once been joined together 4. Name the countries and continents glossopteris is found on. South America, ...
... Continental puzzle, matching fossils, rock types and structures, ancient climates 3. By finding identical fossils in Africa and South America, what does this suggest? Africa and South America had once been joined together 4. Name the countries and continents glossopteris is found on. South America, ...
plate tectonics - Trupia
... supercontinent Pangea began splitting apart and since then the continents have moved to their ...
... supercontinent Pangea began splitting apart and since then the continents have moved to their ...
Ocean Basin Profile
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
Plate Tectonics
... The tectonic plates are made up of the Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puz ...
... The tectonic plates are made up of the Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puz ...
Ocean Basin Profiles Description
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
Deep crustal structure of the northeastern margin of the Arabian
... UAE-Oman mountain belt is reasonably well known through the exploitation of a diverse range of techniques, information on deeper structure remains little. Moreover, the mechanisms by which dense oceanic crustal and mantle rocks are emplaced onto less dense and more buoyant continental crust are stil ...
... UAE-Oman mountain belt is reasonably well known through the exploitation of a diverse range of techniques, information on deeper structure remains little. Moreover, the mechanisms by which dense oceanic crustal and mantle rocks are emplaced onto less dense and more buoyant continental crust are stil ...
Continental Drift and Seafloor
... recorded by rocks in strips parallel to ridges. 2. These iron rich rocks point towards magnetic North wherever it is at the time they cool. ...
... recorded by rocks in strips parallel to ridges. 2. These iron rich rocks point towards magnetic North wherever it is at the time they cool. ...
Chapter 8 study guide: Plate Tectonics
... 31. How is the stress from the collision released to some degree? ...
... 31. How is the stress from the collision released to some degree? ...
Grade 6 Chapter 1 Study Guide
... at a deep-ocean trench and this keeps a balance of new ocean floor being created while older crust is subducted into the mantle. Know that the sea-floor spreads at an average rate of between 2-10 centimeters a year and that the ocean floor is renewed about every 200 million years. ...
... at a deep-ocean trench and this keeps a balance of new ocean floor being created while older crust is subducted into the mantle. Know that the sea-floor spreads at an average rate of between 2-10 centimeters a year and that the ocean floor is renewed about every 200 million years. ...
RM 1 Snack Tectonics Lab Sheet
... 3. Gently push the continental crust towards the oceanic crust until the two overlap and the graham cracker is on top. (Oceanic plate should be subducting below the continental plate.) 4. Draw what you observed and label your drawing in the data table. 5. What types of crustal features form at cont ...
... 3. Gently push the continental crust towards the oceanic crust until the two overlap and the graham cracker is on top. (Oceanic plate should be subducting below the continental plate.) 4. Draw what you observed and label your drawing in the data table. 5. What types of crustal features form at cont ...
to Ch. 9 Notes
... 5. divergent boundary: a region where the rigid plates are moving apart, typified by oceanic ridges 6. convergent boundary: a boundary in which two plates move together 7. transform fault boundary: a boundary in which two plates slide past each other without creating or destroying lithosphere 8. oce ...
... 5. divergent boundary: a region where the rigid plates are moving apart, typified by oceanic ridges 6. convergent boundary: a boundary in which two plates move together 7. transform fault boundary: a boundary in which two plates slide past each other without creating or destroying lithosphere 8. oce ...
Plate Tectonics Reading Passage
... that’s not the case at all. The ocean floor is always moving, though at a very slow rate. In the past, geologists have mapped the ocean floor. By doing so, they discovered a large mountain range that lies underwater in between continents. This mountain range is called the mid‐ oceanic ...
... that’s not the case at all. The ocean floor is always moving, though at a very slow rate. In the past, geologists have mapped the ocean floor. By doing so, they discovered a large mountain range that lies underwater in between continents. This mountain range is called the mid‐ oceanic ...
answers
... 41. Divergent boundaries between two oceanic plates would most likely create: a. folded mountains b. coastal mountain ranges c. mid-ocean ridge, new sea floor d. volcanic island arcs 42. Two continental plates converging would create which of the following: a. volcanic arcs b. coastal mountain rang ...
... 41. Divergent boundaries between two oceanic plates would most likely create: a. folded mountains b. coastal mountain ranges c. mid-ocean ridge, new sea floor d. volcanic island arcs 42. Two continental plates converging would create which of the following: a. volcanic arcs b. coastal mountain rang ...
Plate Tectonics: The Mechanism
... planet with similar ages have the same magnetic characteristics. ...
... planet with similar ages have the same magnetic characteristics. ...
Picture Review Name
... Weathering, erosion, deposition, lithification Heat and pressure, metamorphism Rises, sinks Sinks, rises Supercontinent Two broken continents of Pangaea Convection current in the asthenosphere Continents are drifting apart ( Alfred Wegener ) What explains the continental drift theory. Plates move be ...
... Weathering, erosion, deposition, lithification Heat and pressure, metamorphism Rises, sinks Sinks, rises Supercontinent Two broken continents of Pangaea Convection current in the asthenosphere Continents are drifting apart ( Alfred Wegener ) What explains the continental drift theory. Plates move be ...
File
... o Extends from the shoreline to the ______ ocean. o Divided into the ______________ __________ (shallow), ______________ ___________ (steep), and the __________________ _________ (at the base of the slope). o Sediments collect here. Abyssal Plains – are large, flat areas of the seafloor that extend ...
... o Extends from the shoreline to the ______ ocean. o Divided into the ______________ __________ (shallow), ______________ ___________ (steep), and the __________________ _________ (at the base of the slope). o Sediments collect here. Abyssal Plains – are large, flat areas of the seafloor that extend ...
20081 Study Guide_77-120
... 1. The waters of the Gulf of Mexico off Tallahassee have a lower salinity than the waters of the Atlantic Ocean off Miami; therefore, Tallahassee would be the better choice. 2. off the coast of Israel, because highly saline water has an abundance of dissolved solids and is thus denser 3. neritic; be ...
... 1. The waters of the Gulf of Mexico off Tallahassee have a lower salinity than the waters of the Atlantic Ocean off Miami; therefore, Tallahassee would be the better choice. 2. off the coast of Israel, because highly saline water has an abundance of dissolved solids and is thus denser 3. neritic; be ...
Sea-Floor Spreadingx
... As the seafloor spreads apart at a mid-ocean ridge, new seafloor is created The older seafloor moves away from the ridge in opposite directions This helped explain how the crust could move — something that the continental drift hypothesis could not do ...
... As the seafloor spreads apart at a mid-ocean ridge, new seafloor is created The older seafloor moves away from the ridge in opposite directions This helped explain how the crust could move — something that the continental drift hypothesis could not do ...
deep-ocean basin
... Deep-Ocean Basins, continued Mid-Ocean Ridges • The most prominent features of ocean basins are the mid-ocean ridges, which form underwater mountain ranges that run along the floors of all oceans. • Mid-ocean ridges rise above sea level in only a few places, such as in Iceland. • * are called abyssa ...
... Deep-Ocean Basins, continued Mid-Ocean Ridges • The most prominent features of ocean basins are the mid-ocean ridges, which form underwater mountain ranges that run along the floors of all oceans. • Mid-ocean ridges rise above sea level in only a few places, such as in Iceland. • * are called abyssa ...
File
... When a continental plate and an oceanic plate collide common features include: volcanoes along the ...
... When a continental plate and an oceanic plate collide common features include: volcanoes along the ...
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.