... against marine acoustical research have caused some scientists to worry about the very future of this research. They say it provides the most useful and important remote sensing tool available for learning about the geological structure of the seabed and discovering sub-sea floor oil and gas reserve ...
- Catalyst
... P- and S- waves are body waves and have higher frequencies and lower amplitudes than surface waves. P-waves have the highest velocities and are compression waves and particles move in the same direction as the wave. S-waves are shear waves and move particles up and down ...
... P- and S- waves are body waves and have higher frequencies and lower amplitudes than surface waves. P-waves have the highest velocities and are compression waves and particles move in the same direction as the wave. S-waves are shear waves and move particles up and down ...
Plate Tectonics 2
... •Magnetic anomalies along the mid-ocean ridges (discussed earlier) can be reconstructed —essentially pushing the plates back together — to trace past plate motion. However, this method only works so far, as the plates are not only created but destroyed (at subduction zones), thus erasing previous ma ...
... •Magnetic anomalies along the mid-ocean ridges (discussed earlier) can be reconstructed —essentially pushing the plates back together — to trace past plate motion. However, this method only works so far, as the plates are not only created but destroyed (at subduction zones), thus erasing previous ma ...
Earth Science EOG Review
... Excess Nutrients Algal Bloom (pond scum) darkness below surface photosynthesis stops decomposers & other organisms use up oxygen ...
... Excess Nutrients Algal Bloom (pond scum) darkness below surface photosynthesis stops decomposers & other organisms use up oxygen ...
Study Guide: Plate Tectonics Test
... 2. Wegener’s Continental Drift Theory was supported by the following evidence: a. Landforms: When Wegener looked at maps of Africa and South America, a mountain range running from east to west in South Africa lined up with a range in Argentina. European coal fields matched up with similar coal field ...
... 2. Wegener’s Continental Drift Theory was supported by the following evidence: a. Landforms: When Wegener looked at maps of Africa and South America, a mountain range running from east to west in South Africa lined up with a range in Argentina. European coal fields matched up with similar coal field ...
Converging Plate Boundaries
... lithospheric slabs, thereby producing an inclined zone of earthquakes that dips into the Earth’s upper mantle typically at angles of 40°– 60° from the horizontal. Earthquakes can occur at any depth within the sinking slab, from shallow (0 - 60 km) to as great as 700 km. Over three-quarters of the wo ...
... lithospheric slabs, thereby producing an inclined zone of earthquakes that dips into the Earth’s upper mantle typically at angles of 40°– 60° from the horizontal. Earthquakes can occur at any depth within the sinking slab, from shallow (0 - 60 km) to as great as 700 km. Over three-quarters of the wo ...
Name:______________________________ o ___________________ Samples
... These rocks only form when molten material cools ___________________ o Magnetic strips The earth’s magnetic poles have ___________________ many times Evidence in the ___________________ on the ocean floor o Drilling Samples The samples far from the ridge are ___________________ The “youn ...
... These rocks only form when molten material cools ___________________ o Magnetic strips The earth’s magnetic poles have ___________________ many times Evidence in the ___________________ on the ocean floor o Drilling Samples The samples far from the ridge are ___________________ The “youn ...
Formation of spreading zones on the ocean floor (by the example of
... Transform plate boundaries representing wide zones of deep faults along which shifting of lithospheric plates occurs, are just such structures in the ocean. The Queen Charlotte fault extending along the Canadian coast and the western part of the Aleutian Trench between Bering Island and Kamchatka ma ...
... Transform plate boundaries representing wide zones of deep faults along which shifting of lithospheric plates occurs, are just such structures in the ocean. The Queen Charlotte fault extending along the Canadian coast and the western part of the Aleutian Trench between Bering Island and Kamchatka ma ...
Seismicity, crustal structure, and morphology of the Louisville Ridge
... overthrusting Indo-Australian and subducting Pacific plates. We have found in previous studies, for example, that seamounts of the type that make up the Louisville Ridge may act as either a barrier or asperity during large subduction zone earthquakes. Shallow earthquakes for the period 1964-present ...
... overthrusting Indo-Australian and subducting Pacific plates. We have found in previous studies, for example, that seamounts of the type that make up the Louisville Ridge may act as either a barrier or asperity during large subduction zone earthquakes. Shallow earthquakes for the period 1964-present ...
Oceans - Learn with Mrs. Schulz
... -If you were to graph the temperature of the ocean as you moved deeper what would it look like? -There are three distinct layers: 1) Mixed Layer – wind and currents mix the water on the surface so it is all the same temperature. Relatively warm because of the Sun. 2) Thermocline – a region about 200 ...
... -If you were to graph the temperature of the ocean as you moved deeper what would it look like? -There are three distinct layers: 1) Mixed Layer – wind and currents mix the water on the surface so it is all the same temperature. Relatively warm because of the Sun. 2) Thermocline – a region about 200 ...
Name:
... 25. The volcanoes in Africa form on a plate boundary where two land plates pull apart from one another. These volcanoes form by … a. Rifting b. Sea floor spreading c. hot spot d. subduction 26. An underwater volcano is called a: ________________________. Matching: Volcanic features that are not VOLC ...
... 25. The volcanoes in Africa form on a plate boundary where two land plates pull apart from one another. These volcanoes form by … a. Rifting b. Sea floor spreading c. hot spot d. subduction 26. An underwater volcano is called a: ________________________. Matching: Volcanic features that are not VOLC ...
Contours Lesson Plan - Schmidt Ocean Institute
... 4. Groups research their individual ocean feature using leading questions such as: How are these types of features formed? What does this feature say about the geologic history of the area? What might the composition of the ocean floor be? What might have been going on in the rest of the world when ...
... 4. Groups research their individual ocean feature using leading questions such as: How are these types of features formed? What does this feature say about the geologic history of the area? What might the composition of the ocean floor be? What might have been going on in the rest of the world when ...
Plate Tectonics 1
... • Sea floor increases in age and is more deeply buried by sediment away from the ridge because sediments have had a longer time to collect. • Rates of sea-floor spreading vary from 1 to 10 cm per year for each side of the ridge and can be determined by dating magnetic anomaly stripes of the sea floo ...
... • Sea floor increases in age and is more deeply buried by sediment away from the ridge because sediments have had a longer time to collect. • Rates of sea-floor spreading vary from 1 to 10 cm per year for each side of the ridge and can be determined by dating magnetic anomaly stripes of the sea floo ...
Midlittoral Zone Mid-Ocean Ridge
... There is no rift valley or prominent axial valley or graben on fast-spreading MORs, but along most of the axial crest, there is a narrow, linear depression or trough, which is typically 5 to 40 meters (16.4 to 130 feet) deep and 40 to 250 meters (130 to 820 feet) wide, that marks the locus of the ne ...
... There is no rift valley or prominent axial valley or graben on fast-spreading MORs, but along most of the axial crest, there is a narrow, linear depression or trough, which is typically 5 to 40 meters (16.4 to 130 feet) deep and 40 to 250 meters (130 to 820 feet) wide, that marks the locus of the ne ...
Chapter 3.4 - 3.5 Marine Provinces
... What do you think???? What kind of organisms live around hydrothermal vents? If there is no light, what organisms are the base of the food ...
... What do you think???? What kind of organisms live around hydrothermal vents? If there is no light, what organisms are the base of the food ...
Deep Ocean Technology & The Ocean Floor
... •A seamount is a volcanic mountain on the ocean floor. •Guyot is a submarine volcanic mountain with a flat top. •Islands are seamounts that rise above the water surface. •The mid-ocean ridge is a mountain range that runs through all the world’s oceans. It is almost 64,000 kilometers (40,000 miles) l ...
... •A seamount is a volcanic mountain on the ocean floor. •Guyot is a submarine volcanic mountain with a flat top. •Islands are seamounts that rise above the water surface. •The mid-ocean ridge is a mountain range that runs through all the world’s oceans. It is almost 64,000 kilometers (40,000 miles) l ...
The Dynamic Earth - Moore Public Schools
... • Salinity is a measure of the amount of dissolved salts in a given amount of liquid. ...
... • Salinity is a measure of the amount of dissolved salts in a given amount of liquid. ...
Answers to the study guide
... 18. What evidence was gathered to explain the movements of the continents? a. The age of the sea floor gets older as you move away from the mid ocean ridge at divergent boundaries. The age of the floor gets older at the same rate on either side of the mid-ocean ridge b. The temperature and density ...
... 18. What evidence was gathered to explain the movements of the continents? a. The age of the sea floor gets older as you move away from the mid ocean ridge at divergent boundaries. The age of the floor gets older at the same rate on either side of the mid-ocean ridge b. The temperature and density ...
Divergent Plate Boundaries (plates move )
... A_________ is formed where it bends down. As the oceanic lithosphere descends, it triggers _________ due to the release of the salt _________ it contains. The _______ rises creating a chain of __________ called a continental _________ _____. An example is the ___________ mountains and Mt. St._______ ...
... A_________ is formed where it bends down. As the oceanic lithosphere descends, it triggers _________ due to the release of the salt _________ it contains. The _______ rises creating a chain of __________ called a continental _________ _____. An example is the ___________ mountains and Mt. St._______ ...
Subduction Zones
... Spreading centers form the longest mountain chain in the world, almost 60,000 km. They are areas of recently formed ocean crust, and have reasonable levels of shallow seismicity. ...
... Spreading centers form the longest mountain chain in the world, almost 60,000 km. They are areas of recently formed ocean crust, and have reasonable levels of shallow seismicity. ...
Quiz 1 (Key)
... Multiple Choice: Answer each question with the one most appropriate answer (10 pts) 1. Reversals of the Earth’s magnetic poles: a) are not well understood; b) provide evidence, through paleomagnetism, for seafloor spreading; c) are recorded in the permanent magnetism of lavas millions of years old; ...
... Multiple Choice: Answer each question with the one most appropriate answer (10 pts) 1. Reversals of the Earth’s magnetic poles: a) are not well understood; b) provide evidence, through paleomagnetism, for seafloor spreading; c) are recorded in the permanent magnetism of lavas millions of years old; ...
Evidence for Sea-Floor Spreading
... happens to the ocean floor at deep ocean trenches? • At trenches, 2 plates collide causing the denser of the 2 plates to dive back to the mantle. This process is known as subduction. • Over millions of years, this material may rise again as new oceanic crust. ...
... happens to the ocean floor at deep ocean trenches? • At trenches, 2 plates collide causing the denser of the 2 plates to dive back to the mantle. This process is known as subduction. • Over millions of years, this material may rise again as new oceanic crust. ...
THE OCEAN FLOOR
... Deep, extremely flat features. Possibly the most level places on earth. The sediments that make up abyssal plains are carried there by turbidity currents or deposited as a result of suspended sediments settling. ...
... Deep, extremely flat features. Possibly the most level places on earth. The sediments that make up abyssal plains are carried there by turbidity currents or deposited as a result of suspended sediments settling. ...