What is formed at a divergent plate boundary?(1 point)
metamorphic rock
sedimentary rock
oceanic crust
mountians
oceanic crust
At a divergent plate boundary, oceanic crust is formed.
At a divergent plate boundary, oceanic crust is formed.
To understand why this is the correct answer, let's break it down:
1. Divergent plate boundary: This refers to a type of tectonic plate boundary where two tectonic plates are moving away from each other. As they separate, molten rock (magma) from the asthenosphere rises and solidifies to form new crust.
2. Oceanic crust: When a divergent plate boundary occurs under the ocean, the magma that rises and solidifies forms new oceanic crust. This happens along underwater mountain ranges called mid-ocean ridges. The lava that erupts cools quickly, creating a dark and dense basaltic rock, which is essentially oceanic crust.
Therefore, the correct answer is oceanic crust.