Name ________________________________________ Period _____ Date _________
Chapter 19 Earth Systems Ocean Sediments Chart
Directions: Record the information and sketch the chart. You may use the chart on my web site or
the chart available in the classroom.
Earth System Standard and element: SES6. Students will explain how life on Earth
responds to and shapes Earth systems.
a. Relate the nature and distribution of life on Earth, including humans, to the chemistry
and availability of water.
1.)
Placed chart in notebook behind the
Chapter 19 Word Study. (Thursday, March 21)
Information was accurate with no abbreviations.
All information was included.
Turbidity current sketch was accurate, shaded and labeled.
2.)
3.)
4.)
____
____
____
____
yes
yes
yes
yes
____
____
____
____
no
no
no
no
What are continental margins made of?
Continental Margins Are Made of Sediments:
 course gravel and sand are usually found close to shore because they don't move

well
lighter particles are usually suspended in ocean water and are deposited at a great
distance from shore
How are Ocean Sediments Studied:
 scooping up sediments
 core samples are taken
Different Types of Ocean Sediments:
Inorganic sediments
 mineral sediments deposited by rivers
 volcanic dust
 sediments moved by glaciers
 sediments deposited by meteorites because most fall into the ocean
Biogenic Sediments
 sediments produced by living organisms
 remains of dead plants and animals
Chemical Deposits
 substances that dissolve in ocean water becomes crystallized and form sediments
called nodules
 nodules are commonly found on the abyssal plain which is the bottom of the ocean
floor
 nodules are usually made of oxides of manganese, nickel, copper, and iron
Sediment Classification:
 muds which are very fine silt and clay sized particles of rock
 ooze which is fine sediment that contains the remains of microscopic sea
organisms
Sediment Movement:
 A turbidity or gravity current or underwater landslide is a current of rapidly
moving, sediment-laden water moving down a slope through water, or another
fluid. The current moves because it has a higher density than the fluid through
which it flows and can be caused by earthquakes or sediments building up and
suddenly being pulled by gravity.