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20 True/False questions

  1. ________ foliated, fine-grained metamorphic rock formed from mudstone and shale.phyllilte

          

  2. Which of the following best describes the conditions of contact metamorphism?schist

          

  3. Which of the following would exhibit sheared and mechanically fragmented rocks?schist

          

  4. ________ forms by contact metamorphism of mudstones and shales.hornfels

          

  5. ________ is characterized by the segregation of light- and dark-colored minerals into thin layers or bands.Granitic gneiss

          

  6. ________ nonfoliated metamorphic rock consisting mostly of calcite.marble

          

  7. Which of the following forms at the highest grade of regional metamorphism?schist

          

  8. During metamorphism, what is the major effect of chemically active fluids?heat from a nearby magma body

          

  9. What major change occurs during metamorphism of limestone to marble?calcite grains grow larger and increase in size

          

  10. Which of the following lists the rocks in the order of increasing grain size and increasing grade of metamorphism?schist

          

  11. What is the major source of heat for contact metamorphism?Pressures are fairly low, the rock is in the upper part of the crust, and heat is supplied from a nearby magma body.

          

  12. ________ is a nonfoliated rock formed by contact metamorphism of a shale or mudstone.Hornfels

          

  13. ________ coarse-grained, metamorphic rock with alternating bands or stringers of light and dark minerals.gneiss

          

  14. What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks?micas

          

  15. ________ forms from the metamorphism of limestone or dolostone.Marble

          

  16. In which setting would regional metamorphism be most likely?at great depths in the crust where two continents are colliding

          

  17. What foliated, metamorphic rock is texturally intermediate between slate and schist?phyllite

          

  18. ________ is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.Foliation

          

  19. Tektites originate in what metamorphic environment?at great depths in the crust where two continents are colliding

          

  20. What term describes the zone of contact metamorphism surrounding an intrusive magma body?high temperatures associated with meteorite impacts