Evidence from crater ages for periodic impacts on the earth

Details Evidence from crater ages for periodic impacts on the earth Evidence from crater ages for periodic impacts on the earth

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.308..718a&link_type=abstract

Nature (ISSN 0028-0836), vol. 308, April 19, 1984, p. 718-720.

Mathematics

Probability

136

Extinction, Geochronology, Paleontology, Planetary Craters, Companion Stars, Nemesis (Star), Orbit Perturbation, Periodic Variations, Power Spectra, Earth, Impacts, Craters, Ages, Cretaceous-Tertiary Event, Asteroids, Comets, Extinction, Periodicity, Time Dependency, Analysis, Data, Companion Star

Scientific paper

Records of large impact craters on the earth have been examined in order to test the model of Davis et al. (1984) in which periodic comet showers which caused mass extinctions could have been triggered by an unseen solar companion star as it passed through perihelion on a moderately eccentric orbit. It is reported that most of the craters occur in a 28.4 Myr cycle. Within measurement errors, this period and its phase are the same as those found for the fossil mass extinctions. The probability that such agreement is accidental is one in one thousand.

Affiliated with

Also associated with

No associations

Rating

Evidence from crater ages for periodic impacts on the earth 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 Evidence from crater ages for periodic impacts on the earth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence from crater ages for periodic impacts on the earth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1500662