Category
page 1Lithosphere

earthquake
thumb|upright=1.35|Earthquake epicenters occur mostly along tectonic plate boundaries, especially on the Pacific [[Ring of Fire.]]
plate tectonics
scientific theory that describes the large-scale motions of Earth's lithosphere
lithosphere
thumb|upright=1.35|The tectonic plates of the lithosphere on Earth
thumb|upright=1.35|Earth cutaway from center to surface, the lithosphere comprising the crust and lithospheric mantle (detail not to scale)
groundwater
right|thumb|upright=1.5|An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the [[water table (4), and three different wells (7, 8 and 9) dug to reach it.]]
subduction
thumb|upright=1.85|Diagram of the geological process of subduction
convergent boundary
area where two tectonic plate collide
groundwater pollution
pollution that occurs when when pollutants are released to the ground and seep down into groundwater

aufeis
thumb|upright|Laminations of ice in a sheet of aufeis
Aufeis ( ) (German for "ice on top") is a sheet-like mass of layered ice that forms from successive flows of ground or river water during freezing temperatures. This form of ice is also called overflow, icings, or the Russian term, naled (). The term "Aufeis" was first used in 1859 by Alexander von Middendorff following his observations of the phenomenon in northern Siberia.
Lithosphere-Asthenosphere boundary
level representing a mechanical difference between layers in Earth’s inner structure