Contains

• flood

  The rising of a body of water and its overflowing onto normally dry land; "plains fertilized...

• earthquake

  Shaking and vibration at the surface of the earth resulting from underground movement...

• catastrophe

  A sudden violent change in the earth's surface.

• deposit

  The phenomenon of sediment or gravel accumulating.

• continental drift

  The gradual movement and formation of continents (as described by plate tecto...

• alluvial fan

  A fan-shaped deposit where a fast flowing stream flattens out.

• volcanism

  The phenomena associated with volcanic activity.

• endogeny

  A geological phenomenon below the surface of the earth.

• frost heave

  Upthrust of ground or pavement caused by the freezing of moist soil.

• transgression

  The spreading of the sea over land as evidenced by the deposition of marine strata...