geology

Seafloor spreading

The process of new oceanic crust formation at mid-ocean ridges as plates diverge

Subduction

The process where one tectonic plate descends beneath another at convergent boundaries forming trenches and volcanic arcs

Glacial erosion features

Features carved by moving ice including U-shaped valleys cirques aretes and fjords

Glacial depositional features

Features created by sediment deposited by glaciers including moraines drumlins eskers and til