Author Question: The white granite of the Idaho Batholith near Boise, Idaho, contains dark gray xenoliths of ... (Read 160 times)

tfester

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The white granite of the Idaho Batholith near Boise, Idaho, contains dark gray xenoliths of metamorphic material. Which is older? How do you know?
 
  A) Granite; the principle of superposition
  B) Xenoliths; the principle of cross-cutting relations
  C) Granite; the principle of unconformities
  D) Xenoliths; the principle of inclusions

Question 2

The Mississippi River cuts through Silurian-aged dolomite between northwestern Illinois and eastern Iowa. Which is older? How do you know?
 
  A) Dolomite;the principle of superposition
  B) Mississippi; the principle of original horizontality
  C) Dolomite; the principle of cross-cutting relationships
  D) Mississippi; the principle of lateral continuity



parker125

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Answer to Question 1

Answer: D

Answer to Question 2

Answer: C



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