Predicting which marine systems are close to abrupt transitions into oxygen‐deficient
conditions (“anoxia”) is notoriously hard but important—as rising temperatures and coastal …

The interpretation of local redox indicators in marine sediments relies on their preservation.
By their nature, such biogeochemical tracers are susceptible to diagenetic alteration …

Bacterial hopanoid lipids are ubiquitous in the geologic record and serve as biomarkers for
reconstructing Earth's climatic and biogeochemical evolution. Specifically, the abundance of …

Abstract The eastern Mediterranean Sea (EMS) sedimentary record is periodically
interspersed with organic-rich 'sapropel'layers. Sapropels are characteristic of basin-wide …

Heterocyte glycolipids (HGs) are biomarkers for N 2-fixing heterocytous cyanobacteria
(HCB). The hexose (hereafter C 6) sugar moiety of HGs is produced by free-living HCB …

Elevated organic matter (OM) export flux promotes marine anoxia, thus increasing carbon
sequestration efficiency and decreasing atmospheric carbon dioxide levels. However, the …

We examined membrane-spanning archaeal lipids using ultra high pressure liquid
chromatography-high resolution mass spectrometry (UHPLC-HRMS) in a suite of sediment …

Pre-oxidation can be used against cyanobacteria at the water treatment plant intake to
improve cell removal efficiency in down flow processes and reduce cyanotoxins …

Ocean deoxygenation is a rising threat to marine ecosystems and food resources under
present climate warming conditions. Organic-rich sapropel layers deposited in the …

Establishing the biogenicity of sedimentary surface textures with unresolved microbial origin
is critical to any environmental and geobiological interpretation of clastic settings. Here …