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19 Matching questions

  1. The concept that rocks of the crust and upper mantle are floating in gravitational balance is known as ________.
  2. Which of the following best describes the geology of the Pacific coastal regions of western North America including Alaska?
  3. Which one of the following is an example of an isostatic movement?
  4. Folded limestones that occur high in the Himalayas were originally deposited as sediments in a ________.
  5. The ________ have crust about twice as thick as normal.
  6. A(n) ________ is a zone where two continents collide, often preserving slivers of oceanic lithosphere between the colliding plates.
  7. Topographically high-standing, mountainous areas generally ________.
  8. Accretionary wedges are formed ________.
  9. During late Paleozoic time, the tectonic configuration of the Appalachian region in eastern North America was most similar to the ________.
  10. Which of the following mountain is oldest?
  11. The ________ are a geologically old mountain range folded and deformed during the Paleozoic.
  12. Since the early Mesozoic, the ________ has been passive tectonically.
  13. The Valley and Ridge Province of the Appalachian Mountains is characterized by ________.
  14. According to the crustal, gravitational balance idea, which of the following statements is true?
  15. The ranges of the central and southern Rocky Mountains ________.
  16. Volcanism along a continental arc is dominated by the eruption of ________.
  17. The Sierra Nevada, CA, and Teton, WY ranges are examples of ________.
  18. How were the Ural Mountains (Russia) formed?
  19. The term ________ refers specifically to geologic mountain building.
  1. a eastern margin in the United States
  2. b at the edge of the overriding plate facing a subduction zone
  3. c sedimentary strata folded in late Paleozoic time
  4. d marine basin between India and Eurasia
  5. e uplift of areas recently covered by thick, continental ice sheets
  6. f A mountain range undergoing erosion should uplift slowly.
  7. g Himalayan Range and Tibetan Plateau in northern India and southwestern China
  8. h orogeny
  9. i fault blocks uplifted by late Tertiary to Quaternary normal faulting
  10. j Appalachians in the eastern United States
  11. k The Appalachians
  12. l Marine strata in a basin between the former Asian and European plates were squeezed, folded, and uplifted as the two joined to form the Eurasian plate.
  13. m Geologically different, microcontinent-sized fragments and terranes, formed elsewhere, were tectonically accreted to North America.
  14. n are underlain by greater than average thicknesses of lower density, crustal rocks
  15. o are uplifted blocks that typically have cores of Proterozoic igneous and metamorphic rocks
  16. p suture
  17. q isostasy
  18. r andesitic lavas and pyroclastic materials
  19. s areas of Africa and Arabia bordering on the Red Sea