A convergent boundary where a less dense plate is pushed underneath the more dense plate is a process called: Explain
a
Subduction
b
Mountain building
c
Divergence
d
Slip-Streak
The correct answer is a) Subduction.
In a convergent boundary, two tectonic plates are moving towards each other. When a less dense plate, such as an oceanic plate, encounters a more dense plate, such as a continental plate, subduction occurs. Subduction is the process in which the less dense plate is pushed or forced underneath the more dense plate and sinks into the Earth's mantle.
As the less dense plate subducts, it creates a trench at the surface known as a subduction zone. This process is often associated with the formation of volcanoes and earthquakes. The subducting plate, as it sinks deeper into the mantle, begins to melt due to the increasing temperature and pressure. This molten material then rises through the overriding plate, leading to the formation of volcanoes.
Overall, subduction at convergent boundaries is an important geological process that contributes to the recycling of Earth's crust and the formation of geological features such as mountain ranges and volcanic arcs.