Sedimentary and Metamorphic Rocks

Practice Test
      
  1.The grains of a breccia most likely traveled __________ than the grains in a conglomerate.  
  a.   the same distance  
  b.   a farther distance  
  c.   a shorter distance  
  d.   a different distance  
      
  2.A __________ ranges in grain size from 2 mm to 0.062 mm.  
  a.   sand grain  
  b.   silt grain  
  c.   boulder  
  d.   cobble  
      
  3.What methods of transport typically deposit sorted sediments?  
  a.   water and wind  
  b.   glaciers and wind  
  c.   glaciers and water  
  d.   mass movement and water  
      
  4.How are clastic rocks classified?  
  a.   metamorphic grade  
  b.   particle size  
  c.   method of depostion  
  d.   mineralogy  
      
  5.Which of the following is an example of an evaporite?  
  a.   breccia  
  b.   rock salt  
  c.   coal  
  d.   shale  
      
  6.What process reduces the pore space in sediments due to the weight of overlying sediments?  
  a.   erosion  
  b.   metamorphism  
  c.   compaction  
  d.   cementation  
      
  7.Before metamorphism, marble was what type of rock? SC.D.1.4.2  
  a.   siltstone  
  b.   rock salt  
  c.   schist  
  d.   limestone  
      
  8.Using the figure, what is the temperature range to produce low-grade regional metamorphic rock? SC.D.1.4.2



 
  a.   0-200 degrees C  
  b.   200-600 degrees C  
  c.   more than 750 degrees C  
  d.   0-375 degrees C  
      
  9.Sedimentary layers with distinct grain sizes progressing from larger to smaller are called __________.  
  a.   unsorted deposits  
  b.   graded beds  
  c.   glacial deposits  
  d.   layered deposits  
      
  10.What type of metamorphic rock is a result of increased pressure and temperature affecting large regions of Earth's crust? SC.D.1.4.2  
  a.   foliated metamorphism  
  b.   hydrothermal metamorphism  
  c.   regional metamorphism  
  d.   contact metamorphism  
      
  11.What type of weathering breaks rocks into smaller pieces of rock without chemical change?  
  a.   chemical weathering  
  b.   clastic sediments  
  c.   erosional weathering  
  d.   physical weathering  
      
  12.Pieces of preexisting rocks are called __________.  
  a.   sediments  
  b.   atoms  
  c.   minerals  
  d.   rocks  
      
  13.A glacial deposit often is __________.  
  a.   rippled  
  b.   unsorted  
  c.   well-sorted  
  d.   cross-bedded  
      
  14.What do different grades of metamorphic rocks reflect? SC.D.1.4.2  
  a.   relative amount of pressure only  
  b.   relative amount of temperature and cementation  
  c.   relative amount pressure and temperature  
  d.   relative amount of compaction  
      
  15.Metamorphic rocks with aligned minerals have a __________ texture. SC.D.1.4.2  
  a.   foliated  
  b.   nonfoliated  
  c.   compact  
  d.   distinct  

 
   
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