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Evidence supporting the EUWS cycles comes from a wide variety of sources. This page provides external links to some of those sources for the cycles in the range from 3.38-myr to 821-myr.
3.38 Million Year Cycle
Recent theoretical peaks occurred at 17.78 Ma, 14.40 Ma, 11.02 Ma, 7.64 Ma, 4.26 Ma, and 0.88 Ma. Study chart 1. Notice how global temperatures during the past 38 million years closely correlated with the 3.38-myr cycle. Also notice how every third cycle stands out more clearly -- coinciding with the 10.14-myr cycle.
3.38 Million Year Cycle
Recent theoretical peaks occurred at 17.78 Ma, 14.40 Ma, 11.02 Ma, 7.64 Ma, 4.26 Ma, and 0.88 Ma. Study chart 1. Notice how global temperatures during the past 38 million years closely correlated with the 3.38-myr cycle. Also notice how every third cycle stands out more clearly -- coinciding with the 10.14-myr cycle.
10.14 Million Year Cycle
Recent theoretical peaks occurred at 55.0 Ma, 44.8 Ma, 34.7 Ma, 24.5 Ma, 14.4 Ma, 4.26 Ma, and 5.88-Myr-AP. The 10.14-myr cycle actually shows itself clearly over the last 70 million years in data from paleoclimatologist James Zachos. See chart 2. In the chart, every third cycle is marked with a red arrow -- corresponding with theoretical 30.4-myr peaks. Notice how the 30.4-myr peaks ascend with greater amplitude than the 10.14-myr peaks.
Recent theoretical peaks occurred at 55.0 Ma, 44.8 Ma, 34.7 Ma, 24.5 Ma, 14.4 Ma, 4.26 Ma, and 5.88-Myr-AP. The 10.14-myr cycle actually shows itself clearly over the last 70 million years in data from paleoclimatologist James Zachos. See chart 2. In the chart, every third cycle is marked with a red arrow -- corresponding with theoretical 30.4-myr peaks. Notice how the 30.4-myr peaks ascend with greater amplitude than the 10.14-myr peaks.
30.4 Million Year Cycle
Recent theoretical peaks occurred at 146 Ma, 116 Ma, 85 Ma, 55 Ma, 25 Ma, and 6-Myr-AP. The 30.4-myr cycle can also be seen in chart 3 -- which spans the last 520 million years.
91.3 Million Year Cycle
Recent theoretical peaks occurred at 542 Ma, 450 Ma, 359 Ma, 268 Ma, 177 Ma, 85 Ma, and 6-Myr-AP. Chart 3 also clearly reveals the 91.3-myr cycle. Notice how every third cycle, corresponding to either a double-arrow or a triple-arrow, comes close to matching major climate oscillations.
Recent theoretical peaks occurred at 146 Ma, 116 Ma, 85 Ma, 55 Ma, 25 Ma, and 6-Myr-AP. The 30.4-myr cycle can also be seen in chart 3 -- which spans the last 520 million years.
91.3 Million Year Cycle
Recent theoretical peaks occurred at 542 Ma, 450 Ma, 359 Ma, 268 Ma, 177 Ma, 85 Ma, and 6-Myr-AP. Chart 3 also clearly reveals the 91.3-myr cycle. Notice how every third cycle, corresponding to either a double-arrow or a triple-arrow, comes close to matching major climate oscillations.
274 Million Year Cycle
Recent theoretical peaks occurred at 1089 Ma, 815 Ma, 542 Ma, 268 Ma, and 6-Myr-AP. Chart 3 also exhibits the 274-myr cycle. Notice how the greatest peaks and valleys in global temperatures closely coincide with the triple-arrows.
821 Million Year Cycle
Recent theoretical peaks occurred at 3.553 Ga, 2.732 Ga, 1.911 Ga, 1.089 Ga, and 0.268 Ga. In addition to global temperatures, the EUWS cycles coincide with geological formations. In chart 4, notice how Earth's crust formed in distinct oscillations corresponding almost perfectly with theoretical peaks of the 821-myr cycle. (Note: Single-arrows correspond to theoretical 2.46-gyr turning points.)
Recent theoretical peaks occurred at 1089 Ma, 815 Ma, 542 Ma, 268 Ma, and 6-Myr-AP. Chart 3 also exhibits the 274-myr cycle. Notice how the greatest peaks and valleys in global temperatures closely coincide with the triple-arrows.
821 Million Year Cycle
Recent theoretical peaks occurred at 3.553 Ga, 2.732 Ga, 1.911 Ga, 1.089 Ga, and 0.268 Ga. In addition to global temperatures, the EUWS cycles coincide with geological formations. In chart 4, notice how Earth's crust formed in distinct oscillations corresponding almost perfectly with theoretical peaks of the 821-myr cycle. (Note: Single-arrows correspond to theoretical 2.46-gyr turning points.)
Nineteen other cycles in this harmonic series, along with their sources of evidence, are heavily documented in the book The Unified Cycle Theory: How Cycles Dominate the Structure of the Universe and Influence Life on Earth [Outskirts Press, 2009].
External Links
With a list of theoretical EUWS peaks in hand, click on the following link to study these Geological Timescale correlations.
Kent Condie, a geochemist at New Mexico Institute of Mining and Technology, has served as an academic leader in researching Earth's environmental history. In an abstract entitled (click below) Supercontinents and Superplume Events: Distinguishing Signals in the Geologic Record, Condie discusses a variety of events that correlate with the 274-myr and 821-myr theoretical peaks and valleys.
You can view graphics of the 821-myr and 274-myr cycles in a presentation by Condie, entitled What on Earth Happened 2.7 Billion Years Ago?
References
Condie, K.C. [2003]. Supercontinents and Superplume Events: Distinguishing Signals in the Geologic Record. Elsevier, Physics of the Earth and Planetary Interiors, 146 (2004) 319-332Condie, K.C. [2003]. What on Earth Happened 2.7 Billion Years Ago? Geophysical Research Abstracts, Vol. 5, 01269, 2003
Condie, K.C. [2008]. What on Earth Happened 2.7 Billion Years Ago? Department of Earth and Environmental Science, New Mexico Tech, Socorro, New Mexico. http://www.ees.nmt.edu
/Geol/classes/erth468/dl1.pdf
Frakes, L.A., Francis, J.E., Syktus, J.I. [1992]. Climate Modes of the Phanerozoic. Cambridge University Press. ISBN-13: 9780521021944; ISBN-10: 0521021944.
Gradstein, F.M.; Ogg, J.G.; Smith, A.G.; Bleeker, W.; and Lourens, L.J. [2004]. A New Geologic Time Scale, with Special Reference to Precambrian and Neogene. Excerpt of Geologic Time Scale 2004, Cambridge University Press, ~500 pp. http://www.episodes.org
/backissues/272-yasuo/
Time%20Scale.pdf
McCulloch, M.T.; Bennett, V.C. [1994]. Progressive Growth of the Earth's Continental Crust and Depleted Mantle - Geochemical Constraints. Geochim. Cosmochim. Acta 58, 4717-4738.
Veizer, J. [2008]. Isotope Data, Phanerozoic Database - d18O-Update2004. Department of Earth Sciences, University of Ottawa, Canada. http://www.science.uottawa.ca
/~veizer/isotope_data/
Zachos, J.; Pagani, M.; Sloan, L.; Thomas, E.; Billups, K. [2001]. Trends, Rythms, and Aberrations in Global Climate 65 Ma to Present. DOI: 10.1126/science.1059412. Science 292, 686 (2001).
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