Mariana Trench

Location/History

• Honolulu Hawaii
• Western Pacific Ocean
• 11"21' north latitude
• 142"12' east longitude
• about 180 million years old
• first discovered in 1875 by British ship H.M.S. Challenger

Formation/Geologic Features

• deepest part of the world's oceans (36,070 feet below sea level)
• subduction zone

Catastrophism or Uniformtarism?

• uniformtarism
• plate movement

Constructive or Destructive?

• both
• deep sea trenches are created at subduction zones
• destroying rock
• creating new crust