Mathematics – Probability
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...77..213h&link_type=abstract
Icarus (ISSN 0019-1035), vol. 77, Jan. 1989, p. 213-219.
Mathematics
Probability
17
Extinction, Geochronology, Planetary Craters, Probability Distribution Functions, Periodic Variations, Power Spectra, Random Errors, Standard Deviation, Planets, Periodicity, Craters, Dating Methods, Simulations, Extinction, Impacts, Statistical Analysis, Distribution, Theoretical Studies, Bombardment
Scientific paper
The degradation of a periodic signal by dating errors is studied with a view to claims of a highly significant 25-30 million-year period in major extinction events and large craters. The Monte Carlo simulations used placed eight events at equal time intervals and then displaced each event by a normal distribution-based random error. For rms errors greater than 13 percent of period, periodicity is no longer distinguishable from randomness at the 90-percent confidence level. The more than about 20-percent rms dating errors in the contemplated period for extinction episodes and craters over the last 250 million years are therefore due to a statistical fluke or subjective bias.
Heisler James
Tremaine Scott
No associations
LandOfFree
How dating uncertainties affect the detection of periodicity in extinctions and craters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with How dating uncertainties affect the detection of periodicity in extinctions and craters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and How dating uncertainties affect the detection of periodicity in extinctions and craters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-827802