Dataset "Carbon burial (in)efficiency: Tracking the molecular fingerprint of in situ organic matter burial using a 30-year freeze-core series from a northern boreal lake (Nylandssjön, Sweden)": Supplementary dataset to article of same title, published in Journal of Geophysical Research – Biogeosciences

This work is published in Journal of Geophysical Research – Biogeosciences, under the title "Carbon burial (in)efficiency: Tracking the molecular fingerprint of in situ organic matter burial using a 30-year freeze-core series from a northern boreal lake (Nylandssjön, Sweden)".

Using 13 freeze cores (Renberg 1981) collected during the period 1979–2010, we analyzed by Py-GC/MS the original surface varves when first formed in 1978, 1982, 1988, 1991, 2001, 2003, and 2005 and followed these varves (annually resolved sediment layers) in subsequent cores. For example, the 1978 varve was analyzed in 11 freeze cores allowing us to follow changes in composition in that layer for up to 31 years. With this dataset, we can track changes in organic matter composition and better understand carbon burial.