Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-28T22:02:10.005Z Has data issue: false hasContentIssue false
  • English
  • Français

Ring-width Variation in Sub-fossil Wood Samples as an Indicator of Short-term Solar Variability 2000 yr B.P.

Published online by Cambridge University Press:  25 April 2016

J.O. Murphy  and
J.G. Palmer
J.O. Murphy
Affiliation:
Victorian Institute of Earth and Planetary Sciences, Monash University, Clayton, VIC 3168
J.G. Palmer
Affiliation:
Department of Plant Science, Lincoln University, Canterbury, New Zealand
Get access Rights & Permissions [Opens in a new window]

Abstract

Results from carbon 14 analysis of Bristle cone pine wood, using samples bounded by decade groups of annual rings, has established a significant long term solar periodicity of just over 200 years. Sites with large quantities of buried sub-fossil Kauri, Huon pine and Celery pine logs, which can provide data for a record possibly exceeding 20 000 years, have been identified in New Zealand and Tasmania. An initial study into periodicities, of possible solar origin, embedded in these ring-index time series can be justified on the basis that there are few other sources of annual proxy data, extending beyond the last 2000 years, that may reflect solar variability. Results from spectral analysis of a sub-fossil floating Celery pine chronology, which extends over 426 years, are considered. Carbon dating indicates that the Taupo volcanic eruption, which buried this forest, occurred about AD 177.

Type
Solar and Solar System
Information
Publications of the Astronomical Society of Australia , Volume 10 , Issue 1 , 1992 , pp. 68 - 70
Copyright
Copyright © Astronomical Society of Australia 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barnes, J.A., Sargent, H.H. and Tryon, P.V., 1980, in The Ancient Sun, 159–163, Pepin, R.O., Eddy, J.A. and Merrill, R.B. (eds) Geochimica et Cosmochimica ACTA, Supplement 13, Pergamon, New York.Google Scholar
Bridge, M.C. and Ogden, J., 1986, J. Roy. Soc. NZ, 16, 17.Google Scholar
Durrant, C.J., 1991, Proc. Astron. Soc. Aust., these proceedings.Google Scholar
Francey, R. J. et al., 1984, Isotopes in Tree Rings, CSIRO Division of Atmospheric Research Technical Paper No.4.Google Scholar
Murphy, J.O., 1990, Ausi. J. Phys., 43, 357.Google Scholar
Murphy, J.O., 1991, Proc. Astron. Soc. Aust., 9, 330.Google Scholar
Palmer, J.G., Ogden, J. and Patel, R.N., 1988, J. Roy. Soc. NZ, 18, 407.Google Scholar
Palmer, J.G., 1989, PhD dissertation, A dendroclimatic study of Phyllocladus trichomanoides, D. Don (tanekaha), Univ. of Auckland, NZ.Google Scholar
Schove, D.J., 1983, in Sunspot Cycles, Schove, D.J. (ed), Hutchinson, Ross Pub. Co., Pennsylvania, 149.Google Scholar
Sonett, C.P., 1991, in Sun in Time, Sonett, C.P., Giampapa, M.S. and Mathews, M.S. (eds) Univ. Ariz. Press.Google Scholar