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11.3 Mountain Formation<br />
Accretionary Wedge<br />Accumulation of different sedimentary and metamorphic rocks with some scraps of ocean crust.<br />
Accretion<br />The process in which fragments collide with a continental plate  and they become stuck to or embedded into ...
Terrane<br />Any crustal fragment that has a geologic history distinct from that of the adjoining terranes.<br />
Isostasy<br />The concept of a floating crust in gravitational balance.<br />
Isostatic Adjustment<br />The process of establishing of a new level of gravitational equilibrium<br />
Key Concept<br />Most mountain building occurs at convergent plate boundaries. Colliding plates provide the compressional ...
Key Concepts<br />Ocean-ocean convergence mainly produces volcanic mountains.<br />The types of mountains formed by ocean-...
Key Concepts<br />At a convergence boundary between two plates carrying continental crust, a collision between the contine...
Key Concept<br />Because of isostasy, deformed and thickened crust will undergo regional uplift both during mountain build...
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11.3[1]

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Transcript of "11.3[1]"

  1. 1. 11.3 Mountain Formation<br />
  2. 2. Accretionary Wedge<br />Accumulation of different sedimentary and metamorphic rocks with some scraps of ocean crust.<br />
  3. 3. Accretion<br />The process in which fragments collide with a continental plate and they become stuck to or embedded into the continent.<br />
  4. 4. Terrane<br />Any crustal fragment that has a geologic history distinct from that of the adjoining terranes.<br />
  5. 5. Isostasy<br />The concept of a floating crust in gravitational balance.<br />
  6. 6. Isostatic Adjustment<br />The process of establishing of a new level of gravitational equilibrium<br />
  7. 7. Key Concept<br />Most mountain building occurs at convergent plate boundaries. Colliding plates provide the compressional forces that fold, fault, and the metamorphose the thick layers of sediments deposited at the edges of landmasses.<br />
  8. 8. Key Concepts<br />Ocean-ocean convergence mainly produces volcanic mountains.<br />The types of mountains formed by ocean-continental convergence are volcanic mountains and folded mountains.<br />
  9. 9. Key Concepts<br />At a convergence boundary between two plates carrying continental crust, a collision between the continental fragments will result and form folded mountains.<br />The mountains that form along ridges at divergent plate boundaries are fault-block type mountains.<br />
  10. 10. Key Concept<br />Because of isostasy, deformed and thickened crust will undergo regional uplift both during mountain building and for a long period afterward.<br />
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