Wednesday, October 7, 2015

On relative sediment sinking rate and sediment composition

When I teach my chemical oceanography student about the factors determining sediment composition I found out that understanding the concept of relative flux rate is not trivial. Therefore, I present a simple experiment demonstrating those concepts.

First, let me ask you a question:
Why the most abundant type of sediment in deep water (>3.7Km) at the middle of the ocean is red clayes of continental origin?
To answer that we must first understand that sediment is formed by settling of particles from the sea surface or particles that are formed within the water column on the bottom of the ocean. The settled particles are defined as sediment. This is demonstrated in the following clip
As you can see, when only one type of sediment settles the sediment is composed of only that type of sediment. But what is the sediment composition when several types of sediments are settled together?


  Now we are getting closer to solving our question. When sedimentation of several types of sediments is simultaneous, the sediment composition will be determined by their relative flux (amount of sediment sinking in a unit of time) and their decomposition within the sediment.


Lets see if its clear

And now lets see if you can implement the concepts I introduced to help people in need

A group of arts wants to find meteorites to make jewels where would you suggest them to look fo

    At river outfalls
    At the Mediterranean
    Where red clays are found
    On continental ridge

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