Plate tectonics：練習題

At which type of plate margin is new oceanic crust primarily formed through the process of seafloor spreading?

Which mechanism of plate movement involves the cooling and thickening of the lithosphere as it moves away from an ocean ridge, causing it to subside and 'slide' down the slope of the asthenosphere under gravity?

Evaluate the significance of slab pull in plate tectonic theory. Which statement best describes its role in crustal evolution?

In plate tectonic theory, ridge push is a mechanism of plate movement caused by:

Which landform is specifically associated with the subduction of an oceanic plate beneath a continental plate at a destructive margin?

Define a conservative plate margin and identify a characteristic tectonic process associated with it.

Explain the physical mechanisms behind slab pull and ridge push as primary drivers of tectonic plate movement.

Explain the process of lithospheric subduction and how it leads to the formation of deep-sea trenches and associated island arcs.