Show:
Oceanography
Ocean this and that
Formations
Sediments
Resources
100
Name at least 3 sciences used in Oceanography.
Biology, Physics, Chemistry, Geology and all that follows.
100

People swim in the ocean on me

Continental   shelf

100

Flat topped mound in the ocean

Guyot

100
What is sediment?
Matter that settles at the bottom of a liquid due to erosion/ weathering.
100

Name 2 ocean resources.

Oil, natural gas

200
What is bathymetry?
The measurement of ocean depths and the charting of the shape or topography of the ocean floor.
200
Submarine canyons result from ___________.
Turbidity currents
200

How do seamounts form?

volcanic eruptions

200
Name three types of sediments.
Terrigenous, Biogenous and Hydrogenous
200

Why is it dangerous to explore petroleum in the ocean?

Oil spills.

300

Name the  major ocean basins  largest.

 Pacific

300

How do satellites work on the ocean floor?

Micro waves bouncing off the ocean floor documenting the smallest changes in depth

300

How are abyssal plains formed?

turbidity currents deposit sediments or sediments settling

300
How does terrigenous sediments form?
Continental rock or earth that erodes or is weathered that is transported to the ocean.
300

What are gas hydrates?

Compact structures of water and natural gas.

400
What is sonar and how does it help us map the ocean floor?
Sends sound waves that bounce and return to source. The way it bounces back helps determine the topography.
400
What is the difference between the continental slope and continental rise?
The rise is a slight rise in the ocean floor before the slope, which is steep and at the edge of the shelf.
400

How are deep sea trenches formed?

•They form when one plate collides with another causing it to plunge back into the mantle.

400
How is biogenous sediment formed?
Shells and skeletons of animal life and algae.
400
What are manganese nodules and how do they form?
They are lumps of metal formed by the precipitation of minerals onto a small object in the ocean like a sand particle.
500
What are three technologies used to help map the ocean floor?
Submersibles, sonar and satellites
500

Where do sediments on the ocean floor come from?

Once living life forms

water

land

500

Name the 3 regions of the ocean floor

•Mid ocean ridge

•Continental margins

•Ocean basin floor

500
How are hydrogenous sediments formed?
Crystallization of minerals through chemical reactions in water.
500
What are evaporatives?
Minerals precipitating out of the ocean water due to evaporation of ocean water.