The white granite of the Idaho Batholith near Boise, Idaho, ...

[tfester]

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]

Answer to Question 1

Answer: D

Answer to Question 2

Answer: C

[tfester]

Thank you

[parker125]

No problemo