Publication Date:
2024-01-03
Description:
A total organic carbon (TOC) record covering the last 9600 years was measured from freeze-dried and homogenized samples of Lake Kälksjön (central Sweden) sediment core KKJ19 at 1 cm resolution using an EA Isolink elemental analyzer coupled to a DELTA V advantage isotope ratio mass spectrometer. Sediment core KKJ19 was retrieved from the deepest part of Lake Kälksjön in summer 2019 with a Niederreiter piston corer. TOC measurements were performed in August 2021. Main aim of the measurements was the establishment of a time-series of paleoenvironmental variability for the western Baltic region. A 2500-year low-pass filtered version of the record was subtracted from the original data. The filtered time-series indicates qualitative changes in NAO polarity.
Keywords:
AGE; Carbon, organic, total; Core; CORE; Element analyser (EA); Lake_Kälksjön_KKJ19; Lake Kälksjön; Lake Kälksjön, Sweden; NAO; sediments; Sweden; total organic carbon (TOC)
Type:
Dataset
Format:
text/tab-separated-values, 472 data points
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