Deep Ocean Basins

• Abyssal Plain:

  • 3-5 km depth
  • Land-derived sediment
  • 100-1000 m thick
• Abyssal Hills:

  • <1000 m high
  • 100m-100km wide
  • Volcanic rocks
• Deep-sea trench:

  • Long narrow depressions
  • 3-5km deep
  • Seismic
• Seamounts:

  • Extinct/active volcanoes
  • >1000m high
  • Guyots