The severed, upper part of a Jurassic seamount might occur as a distinctive, small terrane ________.
A)on a passive-margin continental shelf
B)in an arc of composite volcanoes far inland from a convergent margin
C)along the boundary between two Precambrian shield areas
D)in an accretionary wedge shoved onto an active, continental margin

Question

Quizplus · Accepted Answer

Seamounts can be accreted to continents at convergent margins, where oceanic crust is being subducted beneath a continental plate. The process can lead to pieces of the oceanic crust, including seamounts, being scraped off and added to the continent in an accretionary wedge. This does not typically happen in the settings described in the other options.

The Severed, Upper Part of a Jurassic Seamount Might Occur