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Geochemistry of sediments from Arctic thermokarst lakes and lagoons on the Bykovsky Peninsula, Siberia

Authors
/persons/resource/syang

Yang,  Sizhong
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Anthony,  Sara E.
External Organizations;

Jenrich,  Maren
External Organizations;

In ‘t Zandt,  Michiel H.
External Organizations;

Strauss,  Jens
External Organizations;

Overduin,  Pier Paul
External Organizations;

Grosse,  Guido
External Organizations;

Angelopoulos,  Michael
External Organizations;

Biskaborn,  Boris K.
External Organizations;

Grigoriev,  Mikhail N.
External Organizations;

/persons/resource/dwagner

Wagner,  D.
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Knoblauch,  Christian
External Organizations;

Jaeschke,  Andrea
External Organizations;

Rethemeyer,  Janet
External Organizations;

/persons/resource/kallm

Kallmeyer,  J.
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/sliebner

Liebner,  Susanne
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Citation

Yang, S., Anthony, S. E., Jenrich, M., In ‘t Zandt, M. H., Strauss, J., Overduin, P. P., Grosse, G., Angelopoulos, M., Biskaborn, B. K., Grigoriev, M. N., Wagner, D., Knoblauch, C., Jaeschke, A., Rethemeyer, J., Kallmeyer, J., Liebner, S. (2022): Geochemistry of sediments from Arctic thermokarst lakes and lagoons on the Bykovsky Peninsula, Siberia.
https://doi.org/10.5880/GFZ.3.7.2022.001


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5023109
Abstract
In coastal Arctic permafrost regions, thermokarst lagoons represent the transition state from a freshwater lacustrine to a marine environment, and receive little attention regarding their role for greenhouse gas production and release. The geochemical features of a thermokarst lagoon were compared with two thermokarst lakes on the Bykovsky Peninsula in northeastern Siberia. This data set includes pH, major cations and anions, alkalinity, salinity, and dissolved iron (ferric and ferrous) concentrations from porewater of lake and lagoon sediments; the concentration and stable isotopic signature of CH4 in small plug samples from the sediment cores; total carbon (TC), total organic carbon (TOC), total nitrogen (TN), and total sulfur (TS) measured from the bulk sediment; and several biomarker indices (e.g. CPI, Paq) were calculated based on n-alkane concentrations to characterize the origin of organic matter (OM) in the lakes.