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oa Utilization of Ancient Petrogenic Carbon in Svalbard Sediments, Derived from Glacial Meltwater Streams
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021), Sep 2021, Volume 2021, p.1 - 3
Abstract
Summary
The Study addresses the subject of ancient carbon utilization in sediments of Hornsund Fjord, Svalbard. Using a combined approach of biomarker analysis, lipidology, and compound specific radiocarbon dating. We were able to show that the local sedimentary microbes utilize "presumably recalcitrant" petrogenic organic matter for their biosynthesis to a certain extend. Indicating its degradation in the subsurface and hence displaying a not yet accounted source of fissile carbon entering today's carbon cycle.
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