Creation Science

Young Earth Creation Science Argument Index


G334:  Much more sediment is deposited than removed by subduction

Edited by Greg Neyman




About 25 billion tons of sediment is deposited in the ocean each year, but plate tectonic subduction only removes about 1 billion tons per year. Currently, ocean sediment thickness averages 400 meters. At the observed deposition rate, it would accumulate in only 12 million years, not the hundreds of millions of years that the oceans have been around.

Source:  Humphreys, D. Russell, 1999. Evidence for a young world. or



  1. It is true that more sediment is deposited currently than is removed via subduction.  However, subduction is not the only method of removing sediment from the oceans.  As ocean levels fluctuate, or areas are uplifted, sediment at the shorelines becomes continental land.  Also, calcium deposits dissolve, and organic sediments become biomass.  Also, sediment compacts, therefore the volume is not indicative of the original sediment volume


To learn more on this topic, read the rebuttal.

Humphrey's Rebuttal



     If you are not a Christian, and you have been holding out on making a decision for Christ because the Church always preached a message that was contrary to what you saw in the scientific world, then rest assured that the Bible is the inerrant Word of God, and you can believe in Christ and receive salvation, while still believing in an old earth.  Click here for more.


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Young Earth Creation Science Argument Index


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