Question

List the sequence of these events from oldest to youngest (most recent) depicted in cross section iii according to the word bank below:

5) Option E
6) Option F

Answer 1

Oldest to youngest: F, E

Step-by-step explanation:

Cross sections in geology often reveal a sequence of events in the Earth's history. To determine the order from oldest to youngest in cross section iii, we use the principle of superposition, which states that older layers are usually found beneath younger ones. In this case, the events depicted as F occurred before those marked as E.

The stratigraphic principles guide us: Event F represents an older event, as it is a layer or intrusion that has been disrupted or deformed by subsequent events. On the other hand, event E appears to be a relatively undisturbed layer or intrusion, suggesting a more recent geological occurrence compared to event F.

The reasoning behind this lies in the law of cross-cutting relationships; event F must have existed first to be disturbed or intruded upon by event E. Therefore, based on relative dating principles in geology, event F is older and occurred before event E in the sequence of events shown in cross section iii.