Plate Tectonics
... • plate: a large, mobile slab of rock that is part of the earth’s surface • lithosphere: the relatively rigid outer shell of the earth of which the plates are a part • asthenosphere: a zone of low seismic-wave velocity that behaves plastically because of increased temperature and pressure • transfor ...
... • plate: a large, mobile slab of rock that is part of the earth’s surface • lithosphere: the relatively rigid outer shell of the earth of which the plates are a part • asthenosphere: a zone of low seismic-wave velocity that behaves plastically because of increased temperature and pressure • transfor ...
Aquatic Science Where do Oceans come from?
... – East Pacific Rise – Mid-Atlantic Ridge – Ring of Fire. – On your paper, answer the following… • What is an island arc? How is it formed? What kind of boundary does it occur along? • What side of which oceans contain island arcs? • How many island arcs are located in the Pacific? In the Atlantic? ...
... – East Pacific Rise – Mid-Atlantic Ridge – Ring of Fire. – On your paper, answer the following… • What is an island arc? How is it formed? What kind of boundary does it occur along? • What side of which oceans contain island arcs? • How many island arcs are located in the Pacific? In the Atlantic? ...
File - Flipped Out Science with Mrs. Thomas!
... The process by which new oceanic lithosphere (sea floor) forms as magma rises to Earth’s surface and solidifies at a mid-ocean ridge. ...
... The process by which new oceanic lithosphere (sea floor) forms as magma rises to Earth’s surface and solidifies at a mid-ocean ridge. ...
Plate boundaries and rates Plate rates Plate rates
... Strong positive relationship between circumference of plate as subduction zone and rate. Negative buoyancy is important. ...
... Strong positive relationship between circumference of plate as subduction zone and rate. Negative buoyancy is important. ...
Notes Rdg Guide Plate Tectonics Pw Pt 2016
... Ocean floor revealed Much about the Layers of the Earth ...
... Ocean floor revealed Much about the Layers of the Earth ...
quiz 1-physical geology
... 16.Age of the oldest rocks on planet Earth is about 4.5 Million Years 17.The ocean Tethys occupied the area between Northern & Southern landmass 18.San Andreas Fault is a Transform Fault Boundary 19.Age of the oldest rocks from continents and oceans are about the same 20.The two main features that c ...
... 16.Age of the oldest rocks on planet Earth is about 4.5 Million Years 17.The ocean Tethys occupied the area between Northern & Southern landmass 18.San Andreas Fault is a Transform Fault Boundary 19.Age of the oldest rocks from continents and oceans are about the same 20.The two main features that c ...
Subduction Zones
... 60,000 km. They are areas of recently formed ocean crust, and have reasonable levels of shallow seismicity. ...
... 60,000 km. They are areas of recently formed ocean crust, and have reasonable levels of shallow seismicity. ...
Name: Class: Date: Convergent Boundaries (All answers must be in
... after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmised. Such destruction (recycling) of crust takes place along convergent boundaries where plates are moving toward each oth ...
... after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmised. Such destruction (recycling) of crust takes place along convergent boundaries where plates are moving toward each oth ...
Plate Tectonics - Northwest ISD Moodle
... • When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone→ trench. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • The worlds deepest parts of the ocean are found along tre ...
... • When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone→ trench. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • The worlds deepest parts of the ocean are found along tre ...
LECTURE W1-L2 - Earth Structure
... The Pressure Gradient • P increases = rgh • Nearly linear through mantle ~ 30 MPa/km 1 GPa at base of ave crust ...
... The Pressure Gradient • P increases = rgh • Nearly linear through mantle ~ 30 MPa/km 1 GPa at base of ave crust ...
The Earth How the crust moves…
... lithosphere. • Most are located on ocean floor, a few on land – Friction spawns earthquakes along slipstrike faults ...
... lithosphere. • Most are located on ocean floor, a few on land – Friction spawns earthquakes along slipstrike faults ...
Plate Boundaries Notes - Coventry Local Schools
... Plate tectonics – the theory that the Earth’s lithosphere is divided into ______________________________ _________________________________________________________ around on top of the asthenosphere. ...
... Plate tectonics – the theory that the Earth’s lithosphere is divided into ______________________________ _________________________________________________________ around on top of the asthenosphere. ...
How Plates Create
... Lava erupts through narrow cracks along the ridge, adding new rock to the ocean floor. ...
... Lava erupts through narrow cracks along the ridge, adding new rock to the ocean floor. ...
Plate Tectonic Internet Activity
... 8. What are the two parts to the lithosphere? 9. What solid layer can flow? 10. Next. Who originally proposed the theory of Continental Drift? 11. What were the five items he used to support hi theory? ...
... 8. What are the two parts to the lithosphere? 9. What solid layer can flow? 10. Next. Who originally proposed the theory of Continental Drift? 11. What were the five items he used to support hi theory? ...
Plate Boundaries Power Point
... boundary. This view illustrates just one of the ways that plates behave when they collide. In this case, subduction is occurring-one plate is pulled beneath another, forming a deep ocean trench. ...
... boundary. This view illustrates just one of the ways that plates behave when they collide. In this case, subduction is occurring-one plate is pulled beneath another, forming a deep ocean trench. ...
Worksheet 2
... 21. What can happen when two oceanic plates converge and one is subducted into the mantle? a. Melted magma erupts and forms an arc of islands b. The colliding plate edges become crumpled to form a mountain range c. The lithosphere splits to create a divergent plate boundary on land d. A continent sp ...
... 21. What can happen when two oceanic plates converge and one is subducted into the mantle? a. Melted magma erupts and forms an arc of islands b. The colliding plate edges become crumpled to form a mountain range c. The lithosphere splits to create a divergent plate boundary on land d. A continent sp ...
Earth Science Vocabulary Chapter 9: Plate Tectonics Section 9.1
... Convergent Boundary- a boundary in which two plates move together Transform Fault Boundary- a boundary in which two plates slide past eachother without creating or destroying lithosphere Section 9.3: Oceanic Ridge- a continuous elevated zone on the floor of all the major ocean basins and varying in ...
... Convergent Boundary- a boundary in which two plates move together Transform Fault Boundary- a boundary in which two plates slide past eachother without creating or destroying lithosphere Section 9.3: Oceanic Ridge- a continuous elevated zone on the floor of all the major ocean basins and varying in ...
power point notes
... The bottom of the trench (Challenger Deep) is further below sea level than Mount Everest is above it. The trench has a maximum depth of 10,911 m (35,798 feet) below sea level. ...
... The bottom of the trench (Challenger Deep) is further below sea level than Mount Everest is above it. The trench has a maximum depth of 10,911 m (35,798 feet) below sea level. ...
Name - Cedar Hill ISD
... 15. The oceanic plate is SUBDUCTED below the continental plate in a convergent boundary because the oceanic plate is MORE dense then the continental plate. When this happens, the oceanic plate returns to the MANTLE. 16. Why does subduction not occur when two continental plates converge? THEY ARE THE ...
... 15. The oceanic plate is SUBDUCTED below the continental plate in a convergent boundary because the oceanic plate is MORE dense then the continental plate. When this happens, the oceanic plate returns to the MANTLE. 16. Why does subduction not occur when two continental plates converge? THEY ARE THE ...
Plate tectonics: The main features are
... First proposed by Alfred Wegener in 1912 - All continents were once joined together in a super-continent called Pangaea - The continents separated into two large continents. - One moved to the northern hemisphere – Laurasia - The other moved to the southern hemisphere – Gondwanaland ...
... First proposed by Alfred Wegener in 1912 - All continents were once joined together in a super-continent called Pangaea - The continents separated into two large continents. - One moved to the northern hemisphere – Laurasia - The other moved to the southern hemisphere – Gondwanaland ...
The Wadati-Benioff Zone
... 3) This particular plot, in general, shows a very specific tectonic feature. What is it called? Wadati-Benioff zone. This is the idea that earthquakes map out the shape of the downgoing oceanic plate. 4) At what horizontal location in this plot is there evidence for volcanic activity? (hint: magma m ...
... 3) This particular plot, in general, shows a very specific tectonic feature. What is it called? Wadati-Benioff zone. This is the idea that earthquakes map out the shape of the downgoing oceanic plate. 4) At what horizontal location in this plot is there evidence for volcanic activity? (hint: magma m ...
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.