Dirty Water: Oceanic Clues About Climate Change
examining ancient sediment samples.
Subject: sediment
Transcript: way this is done is by examining ancient sediment samples. [yett:] when you look at the sediments and the animals That are found within the sediments
Its in the Water: Seawater, Freshwater and Salt
While both seawater and freshwater contain a wide array of minerals and other constituents, the amount of salt in seawater is generally greater than in any other large body of standing water. There are a number of ways in which salt is added to seaw...
Subject: sediment
Transcript: then sequestered in the sediments. If you can think of sediments at the bottom of the ocean, In between the fine interstices of the sediment grains
Treasure Trove: Commercial Uses of Sediment
Marine sediments are enormously important economically. Gravel and sand are obtained from the ocean for use as construction materials. In addition to
Subject: sediment
Transcript: [yett:] marine sediments are enormously Important economically. There are certain kinds of deposits that have been found In ocean sediments that are
The Ocean's Memory: Sediment Distribution Patterns
While sediments of all varieties can be found almost anywhere in the marine environment, there are some very distinct distribution patterns.
Subject: sediment
Transcript: [narrator:] while sediments of all varieties can be found almost anywhere Min the marine environment, there are some very distinct distribution
The Ocean's Memory: Sediments and Earth's Magnetic Field
As with climate changes, there have been some unexplained aberrations in Earth's magnetic field during the recent past. Marine sediments provide
Subject: sediment
Transcript: [tauxe:] sediments get magnetized by the fact That there are tiny magnetic particles in almost everything. There's this stuff called magnetite That
The Ocean's Memory: Biogenous Sediments
While most sediments are terrigenous, there are other sediments that are also found in the marine environment. Biogenous sediments are those that
Subject: sediment
Transcript: [narrator:] while terrigenous sediments are the most abundant, they are not the only sediments found Min the marine environment. If you're looking at
The Ocean's Memory: Terrigenous Sediments
Sediment is the debris that accumulates on the surface of the Earth as the result of chemical, physical and biological processes. Most sediment
Subject: sediment
Transcript: Sediment is the debris that accumulates on the surface Of the earth as the result of chemical, physical, Biological processes that work on materials
The Ocean's Memory: Obtaining and Analyzing Sediment Samples
Despite its temporary nature, sediment remains uniquely valuable. As a result, oceanographers have worked hard to refine the process of obtaining and
Subject: sediment
Transcript: The very first sediments were collected by sounding weights That were used when people measured the depth of the ocean With a big lead weight on the
The Ocean's Memory: Oil, Gas and Manganese Nodules
Sediment is a uniquely valuable commodity within the marine environment. Oil, natural gas, coal, diamonds, gravel, sand, tin and titanium are all
Subject: sediment
Transcript: When you look at energy resources, the vast majority Of oil and natural gas deposits were formed From marine sediments, and trapped in marine
The Ocean's Memory: Sediments and Past Climate
As sediments get laid down, they carry with them a record of the kind of environment in which they were formed. Scientists can read that record and
Subject: sediment
Transcript: Day by day, sediments get laid down. They carry a record of what kind of environment they formed in, And so we can read that record. [gorsline:] some