What kind of crust was the Avalon Terrane prior to its accretion to the Appalachians in the Acadian Orogeny in the Silurian and Devonian?
A)microcontinental fragment rifted off Rodinia or Gondwanaland
B)supracrustal Iapetus seafloor sediments and Gondwanaland passive margin succession
C)ophiolite-Iapetus Ocean crustal sequence
D)island arc sequence

Question

Quizplus · Accepted Answer

The Avalon Terrane is considered a microcontinental fragment that rifted off from larger landmasses like Rodinia or Gondwanaland before accreting to the Appalachians.

What Kind of Crust Was the Avalon Terrane Prior to Its