Which of the following does NOT indicate that two terranes were already in contact by a certain time?
A) a sedimentary or volcanic unit of that age overlaps their mutual boundary
B) an intrusion invades both terranes or crosscuts their boundary
C) rock on both side shared the same deformation or metamorphic event
D) the two terranes have fossils of the same age that originated in different environments

Question

Quizplus · Accepted Answer

The presence of fossils of the same age from different environments in two terranes does not necessarily indicate that the terranes were in contact; it could simply mean that similar life forms existed in both areas at the same time. The other options (A, B, C) directly suggest a physical connection or interaction between the terranes by the time those geological features formed.

Which of the Following Does NOT Indicate That Two Terranes