deep ocean basins final

Download deep ocean basins final

Post on 20-Feb-2017

618 views

Category:

Environment

0 download

Embed Size (px)

TRANSCRIPT

PowerPoint Presentation

Passtra Univerity of Cambodia

Subject : Marine BiologyLectured by : Prof: Chea LengRoom : Samdach Oum SuTopic : Deep-Ocean Basins, Mid-Ocean Ridge, and Hydrothermal Vents Prepared by : Group 2

Deep-Ocean Basins, Mid-Ocean Ridge, and The Hydrothermal Vents

ContentDeep Ocean BasinsMid-Ocean RidgesThe Hydrothermal VentsConclusionReferences

3

Deep-Ocean BasinsOcean basins are those areas found under the sea.

About 70% of the planet's surface is made up of ocean basins

Ocean basins can be either active ocean basins or inactive ocean basins

4

Ocean Basin FeaturesAbyssal hillSeamountGuyotOcean trenches

Deep-Ocean Basins (Cont)

5

Mid-Ocean RidgeMid-ocean ridge is formed when materials rising from the mantle pushes up by the oceanic crust.After crust it will leave a great gap called Central Rift Valley or known as Wound in the Earths Crust.

6

Mid-Ocean Ridge (Cont)

7

The Hydrothermal Vent

8

The Hydrothermal Vent (Cont)Hydrothermal vents are the result of seawater percolating down through fissures in the ocean crust in the vicinity of spreading centersThe Scientists first discovered hydrothermal vents in 1977 while their exploring near the Galapagos Islands.

9

The Hydrothermal Vent (Cont)Process: water flout into the gap during oceanic and the water got heated (400C) then it pushes up.10

The Hydrothermal Vent (Cont)Ablack smokeris a kind ofhydrothermal vent that can be found on theocean floor.Its contained the rich of dissolved minerals such copper, iron, zinc, most notably of sulfides.

11

ConclusionDeep-sea hot spring is the greatest interesting for both geologist and biologist.Rich of marine life around hydrothermal vents. That all the result, what the scientists studying from the complex system of the sea.Maybe everything's on what theyve been discovered help to supply the world population with the raw materials.

12

ReferenceMarine Biology (Textbook) http://study.com/academy/lesson/ocean-basins-definition-formation-features-types.htmlhttp://oceanservice.noaa.gov/facts/vents.htmlwww.botos.comhttp://cellrelics.com/tag/hydrothermal-vents/http://c-est-quoi.com/en/define/hydrothermale

13

Thank You for Your Paying Attention!!!Q & A

14