#6 Ocean Floor Features
Upcoming SlideShare
Loading in...5
×
 

#6 Ocean Floor Features

on

  • 1,266 views

Deep sea trenches, spreading ridges, sea mounts...

Deep sea trenches, spreading ridges, sea mounts...

Statistics

Views

Total Views
1,266
Views on SlideShare
1,258
Embed Views
8

Actions

Likes
0
Downloads
5
Comments
0

1 Embed 8

http://www.edline.net 8

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

#6 Ocean Floor Features #6 Ocean Floor Features Presentation Transcript

    • Facts about the Oceans
    • Area: about 140 million square miles (362 million sq km), or nearly 71% of the Earth's surface.
    • Average Depth: 12,200 feet (3,720 m).
    • Deepest point: 36,198 feet (11,033 m) in the Mariana Trench in the western Pacific.
    • Mountains: The ocean ridges form a great mountain range, almost 40,000 miles (64,000 km) long, that weaves its way through all the major oceans. It is the largest single feature on Earth.
    • Highest Mountain: Mauna Kea, Hawaii, rises 33,474 feet (10,203 m) from its base on the ocean floor; only 13,680 feet (4,170 m) are above sea level.
  • Match These Terms Spreading Ridge/Mid-Ocean Ridge Trench Continental Shelf Sea mounts/Guyots Volcano Continental Slope Abyssal Plain
  •  
  • Layers of OCEANIC CRUST (up to 4 miles thick) Sediments - bodies of sea creatures (source of carbon) and sediments from landmasses Pillow Basalts - lava, cooled and hardened, from volcanic vents (spreading ridges and hot spots) Dikes - intrusions from upper mantle Layered Gabbro - basement rock