Search Results - "Kenig, Fabien"
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Asphalt dust influence on the distribution of polycyclic aromatic hydrocarbon in crankcase oil stains of a concrete, covered parking structure
Published in Heliyon (30-08-2024)“…Used crankcase oil is an important source of environmental polycyclic aromatic hydrocarbons (PAHs). Here, we use gas chromatography-mass spectrometry (GC-MS)…”
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2
Microbial life at −13 °C in the brine of an ice-sealed Antarctic lake
Published in Proceedings of the National Academy of Sciences - PNAS (11-12-2012)“…The permanent ice cover of Lake Vida (Antarctica) encapsulates an extreme cryogenic brine ecosystem (−13 °C; salinity, 200). This aphotic ecosystem is anoxic…”
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Biological functions at high pressure: transcriptome response of Shewanella oneidensis MR-1 to hydrostatic pressure relevant to Titan and other icy ocean worlds
Published in Frontiers in microbiology (13-02-2024)“…High hydrostatic pressure (HHP) is a key driver of life's evolution and diversification on Earth. Icy moons such as Titan, Europa, and Enceladus harbor…”
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Analysis of unresolved complex mixtures of hydrocarbons extracted from Late Archean sediments by comprehensive two-dimensional gas chromatography (GC×GC)
Published in Organic geochemistry (01-07-2008)“…Hydrocarbon mixtures too complex to resolve by traditional capillary gas chromatography display gas chromatograms with dramatically rising baselines or “humps”…”
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The long infancy of sterol biosynthesis
Published in Nature (London) (22-06-2023)“…Brocks and colleagues also clearly show that later, around 800 million years ago, during the Tonian period (which spanned 1,000 million years ago to 720…”
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Infancy of sterol biosynthesis hints at extinct eukaryotic species
Published in Nature (London) (22-06-2023)“…A newly discovered fossil record of steroid molecules, spanning 1.64 billion years, points to ancient organisms in the eukaryotic domain being capable of only…”
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7
Molecular Evidence of Late Archean Archaea and the Presence of a Subsurface Hydrothermal Biosphere
Published in Proceedings of the National Academy of Sciences - PNAS (04-09-2007)“…Highly cracked and isomerized archaeal lipids and bacterial lipids, structurally changed by thermal stress, are present in solvent extracts of 2,707- to…”
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Origin and tentative identification of tri to pentaunsaturated ketones in sediments from Lake Fryxell, East Antarctica
Published in Organic geochemistry (01-04-2010)“…Chromatographic and mass spectrometric analysis of surface sediments from perennially ice-covered Lake Fryxell (McMurdo Dry Valleys, East Antarctica) enabled…”
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A red algal bloom in the aftermath of the Marinoan Snowball Earth
Published in Terra nova (Oxford, England) (01-10-2007)“…Organic matter from the cap dolostones overlying the Marinoan‐age glacigenic diamictites of the Araras Group, Amazon craton, has been studied to reconstruct…”
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Glacial and postglacial sedimentation in the Fryxell basin, Taylor Valley, southern Victoria Land, Antarctica
Published in Palaeogeography, palaeoclimatology, palaeoecology (09-11-2006)“…A 9.14 m long sediment sequence was recovered from Lake Fryxell, Taylor Valley, southern Victoria Land, Antarctica, and investigated for its chronology and…”
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Composition and Biodegradation of a Synthetic Oil Spilled on the Perennial Ice Cover of Lake Fryxell, Antarctica
Published in Environmental science & technology (15-04-2009)“…A helicopter crashed in January 2003 on the 5 m-thick perennial ice cover of Lake Fryxell, spilling synthetic turbine oil Aeroshell 500. Molecular compositions…”
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Diagenetic and catagenetic products of isorenieratene: Molecular indicators for photic zone anoxia
Published in Geochimica et cosmochimica acta (01-11-1996)“…A wide range of novel diagenetic and catagenetic products of the diaromatic carotenoid isorenieratene, a pigment of the photosynthetic green sulphur bacteria…”
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Particulate organic and dissolved inorganic carbon stable isotopic compositions in Taylor Valley lakes, Antarctica: the effect of legacy
Published in Hydrobiologia (01-10-2009)“…In perennially ice-covered lakes of Taylor Valley, Antarctica, “legacy”, a carryover of past ecosystem events, has primarily been discussed in terms of…”
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Organic sulfones in the brine of Lake Vida, East Antarctica
Published in Geochimica et cosmochimica acta (01-01-2021)“…Located in a closed basin in the McMurdo Dry Valleys, East Antarctica, Lake Vida brine is a cold (−13 °C), hypersaline, interstitial, anoxic, and aphotic…”
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15
Controls on the carbon isotopic composition of Southern Ocean phytoplankton
Published in Global biogeochemical cycles (01-12-1999)“…Carbon isotopic compositions of suspended organic matter and biomarker compounds were determined for 59 samples filtered from Southern Ocean surface waters in…”
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Branched Aliphatic Alkanes with Quaternary Substituted Carbon Atoms in Modern and Ancient Geologic Samples
Published in Proceedings of the National Academy of Sciences - PNAS (28-10-2003)“…A pseudohomologous series of branched aliphatic alkanes with a quaternary substituted carbon atom (BAQCs, specifically 2,2-dimethylalkanes and 3,3- and…”
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Molecular fossil constraints on the water column structure of the Cenomanian–Turonian Western Interior Seaway, USA
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-05-2001)“…Bulk-geochemical and biomarker (molecular fossil) data were collected for four Cenomanian-Turonian sections in the Western Interior Basin, USA. The four…”
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18
Occurrence and origin of mono-, di-, and trimethylalkanes in modern and Holocene cyanobacterial mats from Abu Dhabi, United Arab Emirates
Published in Geochimica et cosmochimica acta (01-07-1995)“…n-Alkanes, highly branched isoprenoids, monomethylalkanes (MMAs), dimethylalkanes (DMAs), and trimethylalkanes (TMAs) are the most abundant components in the…”
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Femtosecond Laser Desorption Postionization MS vs ToF-SIMS Imaging for Uncovering Biomarkers Buried in Geological Samples
Published in Analytical chemistry (Washington) (18-11-2021)“…The study of lipid molecular fossils by traditional biomarker analysis requires bulk sample crushing, followed by solvent extraction, and then the analysis of…”
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Constraining the recent history of the perennially ice-covered Lake Bonney, East Antarctica using He, Kr and Xe concentrations
Published in Geochimica et cosmochimica acta (15-07-2017)“…Lake Bonney is a perennially ice-covered lake in the McMurdo Dry Valleys (MDVs) that has long been studied in order to provide constraints on the paleoclimate…”
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