Browsing Naturwissenschaften, Mathematik und Informatik by Advisor "Thiel, Volker Prof. Dr."
Now showing items 1-6 of 6
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Use of selected anthropogenic pesticides, nutrients, and biomarkers to spatially and temporally characterize eutrophication dynamics at a shallow lake (Lake Seeburg)
(2022-11-09)Eutrophication of water bodies caused by high nutrient inputs, especially of phosphorus, is a global concern for a wide variety of ecosystems. To assess this problem, different monitoring approaches have been applied to a ... -
Assessing the formation and preservation of organic signatures in extreme environments in the context of the ExoMars 2020 rover mission
(2019-09-20)The search for extraterrestrial life is one of the greatest scientific quests of our time. The ESA/Roscosmos ExoMars 2020 rover mission seeks to find evidence for past or modern life on Mars by investigating (sub-)surface ... -
Formation and preservation of abiotic organic signatures vs. lipid biomarkers—experimental studies in preparation for the ExoMars 2020 mission
(2018-06-22)Molecular organic biomarkers have widely been used to track life through Earth’s history, and they became increasingly important in the search of potential (remnants of) life on Mars. The Mars Organic Molecule Analyzer ... -
Geobiology of the stratified central Baltic Sea water column
(2014-09-30)The central Baltic Sea water column is permanently density stratified leading to stagnating bottom waters and a zonation into an oxic, suboxic and anoxic zone. The anoxic zone of the central Baltic Sea is characterized by ... -
Probing molecular tracers in geobiological systems using imaging mass spectrometry
(2013-05-06)In this thesis ToF-SIMS was applied to the study of geobiological samples. Except for a few pioneering studies, ToF-SIMS has rarely been used in the field of geobiology and thus only a limited number of SIMS reference ... -
An integrated approach to the study of biosignatures in mineralizing biofilms and microbial mats
(2011-02-02)In this thesis project, biomarkers, biomineralization processes and TREE (trace and rare earth elements) patterns in mineralizing microbial mats were established and tested as biosignatures ...