If you find a large piece of granite that, upon inspection, contains smaller fragments of sandstone, which
would you say is older, the granite or the fragments of sandstone?
A. Sandstone
B. It's impossible to tell.
C. They're both the same age.
D. Granite
My answer is d.
wrong
How would the sand get into the granite?
Is that what your text says?
C. is the answer!!!
To determine the relative ages of the granite and the sandstone fragments, we can apply the principle of cross-cutting relationships. This principle states that any rock formations which cut across or through another rock formation must be younger than the formation they cut across.
In this case, if the smaller fragments of sandstone are contained within the large piece of granite, it means that the granite must have formed first and then the sandstone fragments were added later. The granite is therefore older than the sandstone fragments.
So, your answer D. Granite is correct.