Close-up 1

• Here's a close-up of the upper, cliff-forming rock type.

• Describe the rock the same way you've described rocks all semester in lab.

• Use the appendix in your lab manual to determine what kind of rock the upper unit actually is.

• One more thing: this sample was taken from the location of the last slide.

  • Notice how angular this sample is.
  • What does that tell you about how far this rock has traveled?