Core correlation

Roy Thompson, Robert Malcolm Clark, Geoffrey S Boulton

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

22 Citations (Scopus)


The numerical procedure of sequence slotting aims to combine, in a mathematically optimal manner, two ordered sequences of stratigraphical data (eg. loss-on-ignition, percentages of different biological taxa) into a single sequence, while preserving the ordering within each sequence and satisfying any other relevant external constraint such as volcanis tephra layers. The procedure provides a convenient means of core correlation in palaeolimnology and is illustrated by two examples. The first involves univariate pollen data from a lake-sediment core being matched with isotopic ice-core data and its associated chronology. The second involves core correlation of two to four cores with a dated master core from eight mountain arctic lakes in Europe using dry weight and bulk organic matter (loss-on-ignition) data as the proxy variables to derive 3405 age estimates for the individual core samples.
Original languageEnglish
Title of host publicationTracking Environmental Change Using Lake Sediments, Volume 5: Data Handling and Numerical Techniques
EditorsH John B Birks, Andre F Lotter, Steve Juggins, John P Smol
Place of PublicationLondon
Pages415 - 430
Number of pages16
ISBN (Print)9789400727441
Publication statusPublished - 2012

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