Chapter 13
... Spreading boundaries are marked by midoceanic ridges on the ocean floor and rift valleys on continents. New ocean crust is formed along spreading boundaries. ...
... Spreading boundaries are marked by midoceanic ridges on the ocean floor and rift valleys on continents. New ocean crust is formed along spreading boundaries. ...
SCI Ch2 Study Guide.doc
... When there is compression between two plate boundaries, __________ might form. Study and know the chart illustrating the movements of different types of convergent plate boundaries on page 219. Suggestion: Use the back of this paper to draw each of them with the basic plate movements labeled with ar ...
... When there is compression between two plate boundaries, __________ might form. Study and know the chart illustrating the movements of different types of convergent plate boundaries on page 219. Suggestion: Use the back of this paper to draw each of them with the basic plate movements labeled with ar ...
Chapter 9: Plate Tectonics Review
... • Geological theory that states that pieces of Earth's lithosphere are in constant, slow motion ...
... • Geological theory that states that pieces of Earth's lithosphere are in constant, slow motion ...
Ch. 1 Jeopardy
... North American plate are scraping past each other along the San Andreas Fault. Crust is not being formed or destroyed. ...
... North American plate are scraping past each other along the San Andreas Fault. Crust is not being formed or destroyed. ...
Warm- Up
... igneous rock is each mostly made of? Provide the 4 pieces of evidence presented by Wegener to defend continental drift. Which later of Earth contains the greatest volume and what percentage of Earth’s volume does it make up? What are the 2 metals that make up the core? ...
... igneous rock is each mostly made of? Provide the 4 pieces of evidence presented by Wegener to defend continental drift. Which later of Earth contains the greatest volume and what percentage of Earth’s volume does it make up? What are the 2 metals that make up the core? ...
QR-5 Plate Tectonics Answer each of the following questions and
... 3. Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis. 4. What two aspects of Wegener’s continental drift hypotheses were objectionable to most Earth scientists? 5. What major ocean floor feature ...
... 3. Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis. 4. What two aspects of Wegener’s continental drift hypotheses were objectionable to most Earth scientists? 5. What major ocean floor feature ...
Plate Tectonics II: Transform Faults, Subduction Zones, and Ho
... b. Of the plate boundaries you identified above, which has the deepest earthquakes? c. Along western South America, what is the position of the earthquakes with respect to the trenches? d. What major types of geologic features are common in subduction zones? e. What geologic events are common at sub ...
... b. Of the plate boundaries you identified above, which has the deepest earthquakes? c. Along western South America, what is the position of the earthquakes with respect to the trenches? d. What major types of geologic features are common in subduction zones? e. What geologic events are common at sub ...
Puerto-Rico Trench
... • Ocean crust is dense enough and thin enough to be “dunked” back into the mantle where it collides with less dense crust. • This process of ocean crust being absorbed back into the mantle is called subduction. ...
... • Ocean crust is dense enough and thin enough to be “dunked” back into the mantle where it collides with less dense crust. • This process of ocean crust being absorbed back into the mantle is called subduction. ...
Plate Tectonics Study Guide Answers 1. lithosphere
... 4. along plate boundaries (faults) 5. inner core- solid iron outer core- liquid mantle- plastic and flowing crust- solid and rocky outer layer 6. divergent boundary in the ocean, mid-Atlantic ridge, oldest rocks are farther away from the ridge, young rocks are near the ridge 7. hot rock rises to top ...
... 4. along plate boundaries (faults) 5. inner core- solid iron outer core- liquid mantle- plastic and flowing crust- solid and rocky outer layer 6. divergent boundary in the ocean, mid-Atlantic ridge, oldest rocks are farther away from the ridge, young rocks are near the ridge 7. hot rock rises to top ...
PLATE TECTONICS MAPPING LAB
... 13. Where is magma rising to the surface and forming ocean crust? Where is the oceanic crust sinking back into the mantle? 14. Some people have referred to the process in the above question as a cycle. Why would it be considered a cycle? 15. What are the attributes of a cycle? Can you describe anoth ...
... 13. Where is magma rising to the surface and forming ocean crust? Where is the oceanic crust sinking back into the mantle? 14. Some people have referred to the process in the above question as a cycle. Why would it be considered a cycle? 15. What are the attributes of a cycle? Can you describe anoth ...
Chap7Sect3 review
... 2. What ocean features does it create? 3. What continental crust features are created by tectonic boundaries? 4. Brainpop Plate Tectonics ...
... 2. What ocean features does it create? 3. What continental crust features are created by tectonic boundaries? 4. Brainpop Plate Tectonics ...
Earth`s Composition Tectonic Plates Virginia Geology Rock Cycle
... - earthquake activity is associated with all plate boundaries; result when movement occurs along a fault; 3 seismograph stations needed to locate the epicenter of an earthquake ⋅ faults are breaks or cracks in the crust along which movement has occurred - most active faults are located at or near pl ...
... - earthquake activity is associated with all plate boundaries; result when movement occurs along a fault; 3 seismograph stations needed to locate the epicenter of an earthquake ⋅ faults are breaks or cracks in the crust along which movement has occurred - most active faults are located at or near pl ...
OCEAN BASINS, GEOGRAPHY AND GEOLOGY OF THE OCEANS
... PLATES –lithospheric "rock"plates 100km that are the upper crust –continental, oceanic or both. Float on upper mantle as they are less dense (like suds on top of bath or dish water). CONTINENTAL MARGINS – (draw a cross section) The shape often reflects the age and the activity that has occurred alon ...
... PLATES –lithospheric "rock"plates 100km that are the upper crust –continental, oceanic or both. Float on upper mantle as they are less dense (like suds on top of bath or dish water). CONTINENTAL MARGINS – (draw a cross section) The shape often reflects the age and the activity that has occurred alon ...
Chapter 1 Study Guide – Plate Tectonics
... Bonus Question: What were the 3 types of evidence that supported Hess’s theory of sea floor spreading? a. eruptions of molten material b. magnetic stripes in the rock of the ocean floor c. the ages of the rocks ...
... Bonus Question: What were the 3 types of evidence that supported Hess’s theory of sea floor spreading? a. eruptions of molten material b. magnetic stripes in the rock of the ocean floor c. the ages of the rocks ...
Serpentine Volcano
... Plate is forced beneath the Philippine Plate. As it descends, the edge of the Phillipine Plate becomes denser and pulls the plate down, causing the plate’s overall westward movement. As the sinking plate moves deeper into the mantle, fluids are released from the rock causing the overlying mantle to ...
... Plate is forced beneath the Philippine Plate. As it descends, the edge of the Phillipine Plate becomes denser and pulls the plate down, causing the plate’s overall westward movement. As the sinking plate moves deeper into the mantle, fluids are released from the rock causing the overlying mantle to ...
Geology- Plate Tectonics (Study Guide) This week, you will create
... 1. Draw a diagram to show how convection currents affect the movement of tectonic plates. Use arrows to show direction. Describe how convection currents relate to plate tectonics. 2. Contrast/compare: 1) oceanic crust and continental crust 2) lithosphere and asthenosphere 3) outer core and inner cor ...
... 1. Draw a diagram to show how convection currents affect the movement of tectonic plates. Use arrows to show direction. Describe how convection currents relate to plate tectonics. 2. Contrast/compare: 1) oceanic crust and continental crust 2) lithosphere and asthenosphere 3) outer core and inner cor ...
PLATE TECTONICS
... Active continental margin • Subduction of oceanic lithosphere beneath continental lithosphere • Accretionary wedge & forearc basin Magmatic arc- volcanoes & plutons Crustal thickening and mountain belts Regional metamorphism Thrust faulting & folding on continental side • Backarc basin ...
... Active continental margin • Subduction of oceanic lithosphere beneath continental lithosphere • Accretionary wedge & forearc basin Magmatic arc- volcanoes & plutons Crustal thickening and mountain belts Regional metamorphism Thrust faulting & folding on continental side • Backarc basin ...
8_Plate_Tectonics
... South American plate, and because it is denser it is subducted underneath. The South American plate is less dense so it sits on top of this subduction zone, but the rocks of the South American plate have been folded upwards and crumpled into fold mountains. There are also volcanoes and earthquakes a ...
... South American plate, and because it is denser it is subducted underneath. The South American plate is less dense so it sits on top of this subduction zone, but the rocks of the South American plate have been folded upwards and crumpled into fold mountains. There are also volcanoes and earthquakes a ...
1 Week 8 THE THEORY OF PLATE TECTONICS 1. Warm
... South American plate, and because it is denser it is subducted underneath. The South American plate is less dense so it sits on top of this subduction zone, but the rocks of the South American plate have been folded upwards and crumpled into fold mountains. There are also volcanoes and earthquakes a ...
... South American plate, and because it is denser it is subducted underneath. The South American plate is less dense so it sits on top of this subduction zone, but the rocks of the South American plate have been folded upwards and crumpled into fold mountains. There are also volcanoes and earthquakes a ...
Plate Tectonics
... • Either Earth is expanding (no evidence!) or • Sea Floor must be destroyed somewhere – where plates converge ...
... • Either Earth is expanding (no evidence!) or • Sea Floor must be destroyed somewhere – where plates converge ...
Theory of Plate Tectonics
... Region where the oceanic plate sinks into the asthenosphere Volcanic formations frequently occur Formed at Convergent Boundary Continental/oceanic Oceanic/oceanic ...
... Region where the oceanic plate sinks into the asthenosphere Volcanic formations frequently occur Formed at Convergent Boundary Continental/oceanic Oceanic/oceanic ...
Convection current
... sinks beneath the continental plate (subduction) and forms a trench (a narrow, deep valley along the ocean floor). • Subduction- the process by which oceanic crust sinks beneath a less dense plate. ...
... sinks beneath the continental plate (subduction) and forms a trench (a narrow, deep valley along the ocean floor). • Subduction- the process by which oceanic crust sinks beneath a less dense plate. ...
Theory of Plate Tectonics
... Theory that the Earth’s lithosphere is divided into tectonic plates that move on top of the asthenosphere Plate movement ...
... Theory that the Earth’s lithosphere is divided into tectonic plates that move on top of the asthenosphere Plate movement ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.