TRANSFORM BOUNDARIES: Lithosphere is not created or destroyed Divergent boundary
ID: 298731 • Letter: T
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TRANSFORM BOUNDARIES: Lithosphere is not created or destroyed Divergent boundary Transform boundary Volcano Depth rench and convergent Volcano Seafloor Oceanic crus spreading basaltic Continental crust boundary (granitic) spreading Lithospheric mantle Lithospheric mantle Mantle (peridotite Divergent DIVERGENT PLATE BOUNDARIES: Melting Lithosphere mantle asthenosphere is created Shallow focus earthquakes O-69 km) (ocean ridges and Intermediate focus earthquakes 70-299 km) continental rifts) Deep focus earthquakes 800-700 km) 0 a or lava (molten rock) Ocean-ocean Ocean-continent Continent-continent CONVERGENT PLATE BOUNDARIES: Lithosphere is destroyed FIGURE 2.2 Three kinds of plate boundaries: divergent, convergent and transform boundaries. White arrowsindicate motions of the lithospheric plates.Half arrows on the transform fault boundary indicate relative motion of the two blocks on either side of the fault.The focus of an earthquake isthe exact location where an earthquake occurred (shallow, intermediate, or deep. Water in subducted plates can lower the melting point of rock just above them at intermediate depths and lead to formationofvolcanoes. 42 LABORATORYExplanation / Answer
2.
Even the Scientists also cannot be predicted whether the Earth expands or contrast, because the size of the Earth may not be stable over a long time. The topography of the Earth changes from one place to other, because some places of the Earth has elevated mountains and hills due to the volcanic eruptions and seafloor spreading.
If a volcanic eruption occurs at a place then an elevated mountain features should be occurred. In this case, the Earth expands outward. If the elevated mountains or hills get eroded, then the height of the mountains or hills should be decreased. In this case, the Earth should be contrasted.
Hence, the mother Earth may not be stable over a long time.
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