11.3 Mountain Formation
Accretionary wedge <ul><li>A large wedge-shaped mass of sediment that accumulates in subduction zones; Here sediment is sc...
accretion <ul><li>Process that occurs when crustal fragments collide with and stay connected to a continental plate. </li>...
terrane <ul><li>A crustal block bounded by faults, whose geologic history is distinct from the histories of adjoining crus...
Isostacy <ul><li>The concept that earth’s crust is floating in gravitational balance upon the material of the mantle </li>...
Isostatic adjustment <ul><li>Process of establishing a new level of gravitational equilibrium </li></ul>
Key Concept <ul><li>Most mountain building occurs at convergent plate boundaries. Colliding plates provide the compression...
Key Concept <ul><li>Ocean- ocean convergence mainly produces volcanic mountains. </li></ul>
Key Concept <ul><li>The types of mountains formed by ocean-p continental convergence are volcanic mountains and folded mou...
Key Concept <ul><li>At a convergent boundary between two plates carrying continental crust, a collision between the contin...
Key concept <ul><li>The mountains that form along ocean ridges at divergent plate boundaries are fault- block type mountai...
Key concept <ul><li>Because of isostasy, deformed and thickened crust will undergo regional uplift both during mountain bu...
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Earth science 11.3

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Earth science 11.3

  1. 1. 11.3 Mountain Formation
  2. 2. Accretionary wedge <ul><li>A large wedge-shaped mass of sediment that accumulates in subduction zones; Here sediment is scraped from the subducting oceanic plate and accreted to the overriding crustal block </li></ul>
  3. 3. accretion <ul><li>Process that occurs when crustal fragments collide with and stay connected to a continental plate. </li></ul>
  4. 4. terrane <ul><li>A crustal block bounded by faults, whose geologic history is distinct from the histories of adjoining crustal blocks </li></ul>
  5. 5. Isostacy <ul><li>The concept that earth’s crust is floating in gravitational balance upon the material of the mantle </li></ul>
  6. 6. Isostatic adjustment <ul><li>Process of establishing a new level of gravitational equilibrium </li></ul>
  7. 7. Key Concept <ul><li>Most mountain building occurs at convergent plate boundaries. Colliding plates provide the compressional forces that fold, fault, and metamorphose the thick layers of sediments deposited at the edges of landmasses. </li></ul>
  8. 8. Key Concept <ul><li>Ocean- ocean convergence mainly produces volcanic mountains. </li></ul>
  9. 9. Key Concept <ul><li>The types of mountains formed by ocean-p continental convergence are volcanic mountains and folded mountains. </li></ul>
  10. 10. Key Concept <ul><li>At a convergent boundary between two plates carrying continental crust, a collision between the continental fragments will result and form folded mountains. </li></ul>
  11. 11. Key concept <ul><li>The mountains that form along ocean ridges at divergent plate boundaries are fault- block type mountains. </li></ul>
  12. 12. Key concept <ul><li>Because of isostasy, deformed and thickened crust will undergo regional uplift both during mountain building and for a long period afterward. </li></ul>
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