DBPapers
DOI: 10.5593/SGEM2014/B42/S19.042

CLIMATE RECONSTRUCTION TECHNIQUE BASED ON GEOCHEMICAL TIME SERIES OBTAINED FROM BOTTOM SEDIMENTS (TELETSKOE LAKE, SOUTH SIBERIA) FOR THE LAST 1500 YEARS

I. Kalugin, A. Darin, V. Babich
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4 ,Vol. 2, 321-326 pp

ABSTRACT
The bottom sediments were studied as a source material for the mathematical treatment.
10 geochemical parameters: Ca, Ti, Mn, Fe, Br, Br / Rb, Br / Sr, Br / Y, Co / Inc, Sr /
Rb were considered. The elements content were measured by X-ray fluorescence
analysis on synchrotron radiation (SR XRF, BINP) along the entire length of the
sediment core (1974 mm) with 1mm step. Matrix of the geochemical time series was
built taking into account continuous sedimentation at an average accumulation rate of
1.06 mm/year in the time interval AD 530-2010 years. Reconstruction of target
parameters (temperature, precipitation and "climate type", lake level) made by three
methods - regression, discrimination and nearest neighbor realizing different approaches
to the problem to be solved.

Keywords: Geochemical time series, paleoclimate, reconstruction, mathematical
treatment