Author Question: Mount Rushmore National Memorial was created at the height of the Great Depression in the 1930s by ... (Read 69 times)

notis · **on:** Jul 16, 2018

Mount Rushmore National Memorial was created at the height of the Great Depression in the 1930s by the use of explosives and jackhammers to sculpt granitic igneous rock.

Which category of weathering (mechanical or chemical) best describes how the rock was broken down? Explain why you believe this is so.
What will be an ideal response?

Question 2

Which soil formation characteristic will most strongly influence a soil when it is young? When it is old?

What will be an ideal response?

jxjsniuniu · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

Answer: The weathering was mechanical; - even though explosives were used, they did not change the chemical makeup of the rock. It was just broken into smaller pieces.

Answer to Question 2

Answer: When a soil is young, the character of the parent material strongly influences the characteristics of the soil. However, over time, other soil-formation factors, particularly climate, are going to become dominant.