SCALING OF POWER SPECTRUM OF EXTINCTION EVENTS IN THE FOSSIL RECORD
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dc.contributor.author | Dimri V.P. | |
dc.contributor.author | Prakash M.R. | |
dc.date.accessioned | 2021-02-12T03:03:01Z | |
dc.date.available | 2021-02-12T03:03:01Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=586011 | |
dc.identifier.citation | Earth and Planetary Science Letters, 2001, 186, 3-4, 363-370 | |
dc.identifier.issn | 0012-821X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/24687 | |
dc.description.abstract | The fast Fourier transform, maximum entropy method, Lomb's method of spectral analysis and rescaled range analysis are applied to the study of extinction patterns. Using a database of marine families from mid-Permian to Pleistocene, it is shown that a long-range correlation is present. Since the data record is non-stationary and unevenly spaced, linear interpolation is carried out for obtaining evenly spaced data. The data are also de-trended from their mean to obtain a stationary time series. Scaling behavior is observed in both interpolated and detrended unevenly spaced data. Application of the randomization test on both interpolated and de-trended data revealed that the interpolated data lost the randomness of the original record due to a smoothing effect, while the de-trended data retained the randomness property and hence are reliable for drawing information. The most popular method, the fast Fourier transform spectral method based on stationarity assumption, yields a contradictory result, and is independent of the interpolation technique used to fill gaps in the discontinuous fossil record. | |
dc.subject | SCALE FACTOR | |
dc.subject | SPECTRAL ANALYSIS | |
dc.subject | FOSSIL RECORD | |
dc.title | SCALING OF POWER SPECTRUM OF EXTINCTION EVENTS IN THE FOSSIL RECORD | |
dc.type | Статья |
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