Oceanography Features & Cross Cutting

Deepest spot in the ocean

• Monterey Canyon
• Mariana Trench
• Puerto Rico Trench
• Mid-Atlantic Ridge

New seafloor is created here

• Deep ocean trench
• subduction zone
• mid-ocean ridge
• marine canyon

Guyot

• flat topped seamount
• volcanic island
• submarine canyon
• deep trench

seamount

• underwater atoll
• underwater volcano
• underwater island
• underwater hot spring

Abyssal plain

• long mountain range
• deep cut in the ocean floor
• large flat area deep on the ocean floor
• eroded island

What feature is marked by letter A?

• Continental slope
• Continental shelf
• Continental rise
• continent

What seafloor feature is marked with the letter D?

• Deep ocean trench
• Submarine Canyon
• Mid-ocean Ridge
• None of the above

What seafloor feature is marked with the letter G?

• Mid-ocean ridge
• submarine canyon
• abyssal plain
• deep ocean trench

What does this diagram show?

• Subduction
• Tsunami
• Volcanic island arc
• Seafloor spreading

The water at some areas along the mid-ocean ridges are very hot because ...

• earth's magnetic field creates heat
• The areas are closer to the core
• There is more sunshine
• There are hydrothermal vents along the mid-ocean ridges