Email this article Rhythms of Banded Glacial Clays of the Paleoproterozoic (~2 Ga Ago) and Modern Cycles of Solar Activity
- Authors: Dmitriev P.B.1, Dergachev V.A.1, Tyasto M.I.2
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Affiliations:
- Ioffe Institute
- St. Petersburg Branch of the Pushkov Institute of Earth Magnetism, Ionosphere, and Propagation of Radio Waves, Russian Academy of Sciences
- Issue: Vol 59, No 8 (2019)
- Pages: 1042-1047
- Section: Article
- URL: https://journals.rcsi.science/0016-7932/article/view/157945
- DOI: https://doi.org/10.1134/S0016793219080048
- ID: 157945
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Abstract
Paleoclimatic data from a sequence of argillite deposits of the Gowganda Formation located in the Mississagi River Valley (southern Ontario Province, Canada) covering a time interval of 256 years with a time resolution of one year are studied to research possible variations of the Earth’s climate in the Paleoproterozoic (~2 Ga ago). The following quasi-periodic variations have been found via the construction of a combined spectral periodogram: 3, 5, 11, 14, 29, and 75 years (at significance levels of the respective estimated values of magnitudes ranging from 2σ to 4σ). This may indicate the possible influence of solar activity on climate changes in the geological past.
About the authors
P. B. Dmitriev
Ioffe Institute
Author for correspondence.
Email: paul.d@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
V. A. Dergachev
Ioffe Institute
Author for correspondence.
Email: v.dergachev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
M. I. Tyasto
St. Petersburg Branch of the Pushkov Institute of Earth Magnetism, Ionosphere, and Propagation of Radio Waves, Russian Academy of Sciences
Author for correspondence.
Email: mtyasto@mail.ru
Russian Federation, St. Petersburg
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