Activity 4: A Rule for Determining Attitude (Dip) from a Map
Examining the Relation between Dip and Unit Width
As you change the dip of the unit, notice how the width of the outcrop pattern on the top face of the block changes.


copyright 1998, VisualEntities
Using the applet, answer the following questions:
  1. What dip will produce an outcrop pattern with the same thickness as the unit itself?
  2. How does the width of the outcrop change as the dip decreases?
  3. What is the dip that will give the widest outcrop?
  4. To calculate the thickness of a geologic unit from the width of its outcrop pattern, what piece of information do you need?
[ Return to Activity 4 ] 


Copyright Houghton Mifflin Company. All Rights Reserved.
Terms and Conditions of Use, Privacy Statement, and Trademark Information