Validation of wiggle matching using a multi‐proxy approach and its palaeoclimatic significance

Abstract

Bokhorst, M. P. and Vandenberghe, J. 2009. Validation of wiggle matching using a multi-proxy approach and its palaeoclimatic significance.ABSTRACT: Research into global, millennial-scale climate oscillations during the last glacial requires wiggle matching. One method for adequate wiggle matching is based on the dating of the climate proxy records. Luminescence dating methods are needed for estimates of last glacial ages in terrestrial records. However, such dating methods are not accurate enough for millennial-scale wiggle matching. It is shown that a multi-proxy comparison of two sections that are situated close to each other may considerably improve the accuracy of wiggle matching. The method is tested by an application on two loess sections of last glacial age in Vojvodina, Serbia. The climate proxies include magnetic susceptibility, leachate Ba/Sr and grain size. Firstly, single proxy-wiggle matches between both sections are analysed successively with the same and with different proxies. Secondly, a multiproxy wiggle match based on all three proxies of the two sections is presented and compared to the single-proxy tests. In such a procedure, it becomes clear which wiggles are mainly determined by local conditions and which have a more extended significance. It is concluded that a multi-proxy approach results in the best and the most unique wiggle matches.

Multi-proxy analysis: a reflection on essence and potential pitfalls

“…However, the magnitude and/or duration of the fluctuations were apparently insufficient to record a signal in the fluvial morphology and sedimentation, at least as recorded in NW Europe (Van Huissteden & Kasse, 2001;Lewin & Gibbard, 2010). A fundamental test to illustrate the different reactions of proxies to specific climatic events is described by Bokhorst and Vandenberghe (2009). At two sections near to each other (Titel and Mosorin) the same three paleo-climatic proxies were Vandenberghe & Nugteren, 2001).…”

“…Fluvial adaptation was also hardly detected in western Europe during stadial-interstadial transitions, such as the Hasselo-Hengelo interval (Van Huissteden, 1990). Such an interval was often too short for recording a fluvial reaction taking typically Reproduced from Bokhorst & Vandenberghe (2009) with permission from Wiley Publ. some 500-1000 years (Vandenberghe, 2002).…”

Loess towards (geo) tourism – proposed application on loess in Vojvodina region (north Serbia)

“…1998, Shi et al 2003, loess-palaeosol sequences in the Vojvodina region have a greater total thickness because they were formed during the last million years (Markovi} et al 2005a(Markovi} et al , 2006(Markovi} et al , 2007a(Markovi} et al , 2007b(Markovi} et al , 2009b. The multidisciplinary research approach that consists of detailed investigations of lithoand pedostratigraphy, magnetic and palaeomagnetic properties, grain size variations, geochemical analysis, amino acid racemisation measurements in fossil mollusc shelves as well as luminescence dating indicates that the loess deposits in the Vojvodina region are among the oldest and most complete loess-palaeosol sequences in Europe (Markovi} et al 2004a, 2004b, 2005a, 2005b, 2006, 2007a, 2007b, 2009b, 2009c, Fuchs et al 2008, Buggle et al 2008, Antoine et al 2009, Bokhorst and Vandenberghe 2009, Zech et al 2009, Schmidt et al 2010, Ujvari et al 2010.…”

“…loess »cave«, pyramid, gully, cliffs, etc), dominates its lower surroundings which makes it aesthetically and visually attractive. Additionally, sections such as »Feudvar« and »Kalvarija« possess great archaeological value , Bokhorst and Vandenberghe 2009, Markovi} et al 2005b.…”

The Loess Chronology of the Island of Susak, Croatia

“…Evidence of Pleistocene climatic changes can be found in more or less continuous terrestrial sediment records like loess-paleosol sequences. Great efforts are made into the high resolution sampling and investigation of loess records using different disciplines and methods with the purpose of identifying climate oscillations and environmental changes (Buylaert et al, 2008;Stevens et al, 2008;Bokhorst & Vandenberghe, 2009). The correlation with oxygen isotope stages (OIS) and the GRIP data (GRIP Members, 1993) is a common practice.…”