40. Investigators believed that most of the deposited ash resulted from fragmentation of new rock formed during the eruption rather than fragmentation of much older, preexisting rock. Which of the following studies support(s) this interpretation?
Your Answer is
Correct Answer is F
Explanation
Looking at Figure 2, light ash forms the majority compared to other types of volcanic ash;
Look at the third paragraph of Study 2, which says that lighter-colored ash formed later in the eruption as the molten rock inside the volcano was violently expelled. There is no relevant information mentioned in the other two studies