Taner filter settings and automatic correlation optimisation for cyclostratigraphic studies

Christian Zeeden, Stefanie Kaboth, Frederik J. Hilgen, Jacques Laskar
2018 Computers & Geosciences  
filter settings and automatic correlation optimisation for cyclostratigraphic studies. Abstract 12 Cyclostratigraphy and astronomical tuning utilize the imprint of quasi-cyclic insolation 13 changes in geological records to establish chronologies. In this context, filtering of time 14 series in specific frequency bands is commonly applied to extract information on 15 astronomical forcing from geological datasets. This approach is performed on specific 16 insolation components (precession,
more » ... ity or eccentricity) and sometimes also their 17 amplitudes either in depth or time domain. In this study, we design and apply a simulation 18 technique to determine the optimal Taner filter settings to extract precession-, obliquity-and 19 eccentricity-related interference signals from astronomically tuned geological datasets. This 20 is done by testing a variety of filter settings on several astronomical and artificial datasets. 21 Based on our results, we propose specific filter designs (cut-off frequencies and roll-off 22 31 32 Key words 33 cyclostratigraphy; automated tuning; automated time scale optimisation; Taner filter settings; 34 correlation 35 36
doi:10.1016/j.cageo.2018.06.005 fatcat:ecyh546abzaw5cjnbrlyruywbu