Assertion 1.8: The moon would have a 180-foot meteoritic dust layer if it were billions of years old.
Analysis:
The calculation that led to the prediction of such a deep dust layer was based upon a speculative estimate of influx of meteoritic dust that has since been proven false. The actual influx of dust is considerably smaller, and consistent with actual observations. (Ecker 1990:183).
The young-earth creationist organization Answers in Genesis now disavows the meteoritic moon dust layer argument as an argument that should definitely not be used".
References
R. Ecker. 1990. Dictionary of Science and Creationism. Buffalo: Prometheus.