Questions: Matching Question Match the feature with how it may lead to the timing of terrane accretion. (i) Instructions Intrusion that cuts across both terranes ⟷ □ Sediment from one terrane deposited over the other ⟷ □ Different fossils in two terranes of the same age ⟷ □ Indicates the terranes were already together when this formed Indicates the two terranes were close enough to one another for the feature on one terrane to have been derived from the other terrane Indicates terranes probably originated in different settings and locations and were not close when this feature formed

To match the features with how they may lead to the timing of terrane accretion, we need to understand the implications of each geological feature:

1. Intrusion that cuts across both terranes:

   • This indicates that the terranes were already together when the intrusion formed. An intrusion that cuts across both terranes suggests that the terranes were in contact or very close to each other at the time of the intrusion, as the intrusion affects both terranes simultaneously.
   • Match: Indicates the terranes were already together when this formed.

2. Sediment from one terrane deposited over the other:

   • This indicates that the two terranes were close enough to one another for the sediment on one terrane to have been derived from the other terrane. The deposition of sediment from one terrane onto another suggests proximity and interaction between the terranes.
   • Match: Indicates the two terranes were close enough to one another for the feature on one terrane to have been derived from the other terrane.

3. Different fossils in two terranes of the same age:

   • This indicates that the terranes probably originated in different settings and locations and were not close when this feature formed. The presence of different fossils of the same age in two terranes suggests that they were in separate environments when the fossils were deposited.
   • Match: Indicates terranes probably originated in different settings and locations and were not close when this feature formed.

In summary, the matches are:

• Intrusion that cuts across both terranes: Indicates the terranes were already together when this formed.
• Sediment from one terrane deposited over the other: Indicates the two terranes were close enough to one another for the feature on one terrane to have been derived from the other terrane.
• Different fossils in two terranes of the same age: Indicates terranes probably originated in different settings and locations and were not close when this feature formed.