A prime example of this was “meteor dust” which is in reference to the amount of dust on the moon. Not only was this argument debunked as an accurate measurement of age, it was debunked on Answers in Genesis’s own website in 1993.
“It thus appears that the amount of meteoritic dust and meteorite debris in the lunar regolith and surface dust layer, even taking into account the postulated early intense meteorite and meteoritic dust bombardment, does not contradict the evolutionists’ multi-billion year timescale (while not proving it). Unfortunately, attempted counter-responses by creationists have so far failed because of spurious arguments or faulty calculations. Thus, until new evidence is forthcoming, creationists should not continue to use the dust on the moon as evidence against an old age for the moon and the solar system.” http://www.answersingenesis.org/articles/tj/v7/n1/moondust