Meteoritic dust falls on the earth continuously, adding up to thousands, if not millions, of tons of dust per year. Realizing this, and knowing that the moon also had meteoritic dust piling up for what they thought was millions of years, N.A.S.A. scientists were worried that the first lunar ship that landed would sink into the many feet of dust which should have accumulated. However, only about one-eight of an inch of dust was found, indicating a young moon.
Meteoritic material contributes nickel to the oceans.
This, and the lack of meteoritic dust piles on the earth, lend to the belief in a young earth. Also, if electric currents in the earth's core are responsible for the earth's magnetism, the heat generated by these currents 20,000 years ago would have dissolved the earth. In the article above, regarding arguments about the Earth's magnetic field, the author fails to give any scientific data to support his outlandish claims. The book was critiqued by planetary physicist Tim Thompson of the Jet Propulsion Laboratories at NASA, who found that Barnes' interpretation of the data was seriously flawed. Hardly a steady decay.