this is oceanography. please write by yourself. not copy on the internet.thank y

Question

this is oceanography. please write by yourself. not copy on the internet.thank you

Part I - Answer the following questions about Hydrothermal Vents: (50 points)

1) How is Hydrothermal Vent formed in the ocean basin?

2) When was the first discovery of hydrothermal vents in the ocean?

3) Where is the possible location in the ocean that hydrothermal vents can be found? Be as specific as possible.

4) Is it true that hydrothermal vents can be found only in the Pacific Ocean? Are there any in the Atlantic Ocean?

5) Why are they called "black smoker chimneys?" Why are they in black?

Part II - Continental Margins (10 points)

1) What are the differences between Active and Passive Margins?

2) Is Florida's east coast a type of Active Margin or Passive Margin? Why?

Explanation / Answer

Part 1

1) Hydrothermal vent   forms when the ocean water is circulated through very high temperature volcanic rocks.

2) In 1977,in the bottom of the Pacific Ocean.

3)Hydrothermal vents are commonly found in

5)They are called "black smoker chimneys because they emit materials which are black in color.

The black color is due to the presence of sulfides in the emissions.

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