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Publications
Helmholtz Centre Potsdam
GFZ German Research Centre for Geosciences
(Co) Author: Wilkes, H.
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Aichner, B.; Herzschuh, U.; Wilkes, H.; Schulz, H.-M.; Wang, Y.; Plessen, B.; Mischke, S.; Diekmann, B.; Zhang, C. (2012): Ecological development of Lake Donggi Cona, north-eastern Tibetan Plateau, since the late glacial on basis of organic geochemical proxies and non-pollen palynomorphs. Palaeogeography Palaeoclimatology Palaeoecology, 313-314, 140-149.
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Jarling, R.; Sadeghi, M.; Drozdowska, M.; Lahme, S.; Buckel, W.; Rabus, R.; Widdel, F.; Golding, B. T.; Wilkes, H. (2012): Stereochemical investigations reveal the mechanism of the bacterial activation of n-alkanes without oxygen. Angewandte Chemie-International Edition, 51, 6, 1334-1338.
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Lahme, S.; Eberlein, C.; Jarling, R.; Kube, M.; Boll, M.; Wilkes, H.; Reinhardt, R.; Rabus, R. (2012): Anaerobic degradation of 4-methylbenzoate via a specific 4-methylbenzoyl-CoA pathway. Environmental Microbiology, 14, 5, 1118-1132.
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Trautwein, K.; Wilkes, H.; Rabus, R. (2012): Proteogenomic evidence for β-oxidation of plant-derived 3-phenylpropanoids in 'Aromatoleum aromaticum' EbN1. Proteomics, 12, 9, 1402-1413.
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Rabus, R.; Jarling, R.; Lahme, S.; Kühner, S.; Heider, J.; Widdel, F.; Wilkes, H. (2011): Co-metabolic conversion of toluene in anaerobic n-alkane-degrading bacteria. Environmental Microbiology, 13, 9, 2576-2586.
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Zedelius, J.; Rabus, R.; Grundmann, O.; Werner, I.; Brodkorb, D.; Schreiber, F.; Ehrenreich, P.; Behrends, A.; Wilkes, H.; Kube, M.; Reinhardt, R.; Widdel, F. (2011): Alkane degradation under anoxic conditions by a nitrate-reducing bacterium with possible involvement of the electron acceptor in substrate activation. Environmental Microbiology Reports, 3, 1, 125-135.
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Aichner, B.; Herzschuh, U.; Wilkes, H. (2010): Influence of aquatic macrophytes on the stable carbon isotopic signatures of sedimentary organic matter in lakes on the Tibetan Plateau. Organic Geochemistry, 41, 7, 706-718.
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Kristen, I.; Wilkes, H.; Vieth-Hillebrand [Vieth], A.; Zink, K.-G.; Plessen, B.; Thorpe, J.; Partridge, T. C.; Oberhänsli, H. (2010): Biomarker and stable carbon isotope analyses of sedimentary organic matter from Lake Tswaing: evidence for deglacial wetness and early Holocene drought from South Africa. Journal of Paleolimnology, 44, 1, 143-160.
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Pötz, S.; Wilkes, H.; Witt, M.; Horsfield, B. (2010): Characterization of complex assemblages of organic acids in geological samples by negative electrospray ionization mass spectrometry using a double-focusing magnetic sector field mass spectrometer. Rapid Communications in Mass Spectrometry, 24, 8, 1185-1197.
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Sachse, D.; Gleixner, G.; Wilkes, H.; Kahmen, A. (2010): Leaf wax n-alkane δ{delta} D values of field-grown barley reflect leaf water δ{delta} D values at the time of leaf formation. Geochimica et Cosmochimica Acta, 74, 23, 6741-6750.
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Musat, F.; Galushko, A.; Jacob, J.; Widdel, F.; Kube, M.; Reinhardt, R.; Wilkes, H.; Schink, B.; Rabus, R. (2009): Anaerobic degradation of naphthalene and 2-methylnaphthalene by strains of marine sulfate-reducing bacteria. Environmental Microbiology, 11, 1, 209-219.
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Rabus, R.; Wilkes, H.; Widdel, F. (2009): Proteogenomic insights into anaerobic biodegradation of hydrocarbons. Geochimica et Cosmochimica Acta, 73, 13, Suppl. 1, A1065.
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Wöhlbrand, L.; Wilkes, H.; Halder, T.; Rabus, R. (2008): Anaerobic Degradation of p-Ethylphenol by 'Aromatoleum aromaticum' Strain EbN1: Pathway, Regulation, and Involved Proteins. Journal of Bacteriology, 190, 16, 5699-5709.
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Kniemeyer, O.; Musat, F.; Sievert, S. M.; Knittel, K.; Wilkes, H.; Blumenberg, M.; Michaelis, W.; Classen, A.; Bolm, C.; Joye, S. B.; Widdel, F. (2007): Anaerobic oxidation of short-chain hydrocarbons by marine sulphate-reducing bacteria. Nature, 449, 7164, 898-901.
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Haberer, R. M.; Mangelsdorf, K.; Wilkes, H.; Horsfield, B. (2006): Occurrence and palaeoenvironmental significance of aromatic hydrocarbon biomarkers in Oligocene sediments from the Mallik 5L-38 Gas Hydrate Production Research Well (Canada). Organic Geochemistry, 37, 5, 519-538.
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Horsfield, B.; Schenk, H. J.; Zink, K.-G.; Ondrak, R.; Dieckmann, V.; Kallmeyer, J.; Mangelsdorf, K.; di Primio, R.; Wilkes, H.; Parkes, R. J.; Fry, J.; Cragg, B. (2006): Living microbial ecosystems within the active zone of catagenesis: implications for feeding the deep biosphere. Earth and Planetary Science Letters, 246, 1-2, 55-69.
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Vieth-Hillebrand [Vieth], A.; Wilkes, H. (2006): Deciphering biodegradation effects on light hydrocarbons in crude oils using their stable carbon isotopic composition: a case study from the Gullfaks oil field, offshore Norway. Geochimica et Cosmochimica Acta, 70, 3, 651-665.
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Wollenweber, J.; Schwarzbauer, J.; Littke, R.; Wilkes, H.; Armstroff, A.; Horsfield, B. (2006): Characterisation of non-extractable macromolecular organic matter in Palaeozoic coals. Palaeogeography, Palaeoclimatology, Palaeoecology, 240, 1-2, 275-304.
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Fuhrmann, A.; Fischer, T.; Lücke, A.; Brauer, A.; Zolitschka, B.; Horsfield, B.; Negendank, J. F. W.; Schleser, G. H.; Wilkes, H. (2004): Late Quaternary environmental and climatic changes in central Europe as inferred from the composition of organic matter in annually laminated maar lake sediments. Geochemistry, Geophysics, Geosystems (G3), 5, No. 11, Q11015.
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Wilkes, H.; [Vieth-Hillebrand] Vieth, A.; Scherf, A.-K.; Kühner, S.; Rabus, R.; Widdel, F. (2004): Anaerobic biodegradation of light hydrocarbons in crude oil: A comparison of laboratory experiments and field data. Geochimica et Cosmochimica Acta, 68, 11, Suppl. 1, A231.
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Fuhrmann, A.; Mingram, J.; Lücke, A.; Lu, H.; Horsfield, B.; Liu, J.; Negendank, J. F. W.; Schleser, G. H.; Wilkes, H. (2003): Variations in organic matter composition in sediments from Lake Huguang Maar (Huguangyan), south China during the last 68 ka: implications for environmental and climatic change. Organic Geochemistry, 34, 11, 1497-1515.
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Wilkes, H.; Kühner, S.; Bolm, B.; Fischer, T.; Classen, A.; Widdel, F.; Rabus, R. (2003): Formation of n-alkane- and cycloalkane-derived organic acids during anaerobic growth of a denitrifying bacterium with crude oil. Organic Geochemistry, 34, 9, 1313-1323.
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Bakr, M. M. Y.; Wilkes, H. (2002): The influence of facies and depositional environment on the occurrence and distribution of carbazoles and benzocarbazoles in crude oils: a case study from the Gulf of Suez, Egypt. Organic Geochemistry, 33, 5, 561-580.
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Horsfield, B.; Dieckmann, V.; Mangelsdorf, K.; Di Primio, R.; Wilkes, H.; Schlömer, S.; Schenk, H. (2002): Organic diagenesis: a potential provider of substrates for deep microbial ecosystems. Geochimica et Cosmochimica Acta, 66, S1, A342.
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Wilkes, H.; Taylor, P. (2002): New insights into the petroleum geochemistry of NSO compounds: Selected papers from a symposium held at the 219th National American Chemical Society Meeting in San Francisco, California, March 2000. Organic Geochemistry, 33, 5, 525-609.
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Wilkes, H.; Ramrath, A.; Negendank, J. F. W. (1999): Organic geochemical evidence for environmental changes since 34,000 yrs BP from Lago di Mezzano, central Italy. Journal of Paleolimnology, 22, 4, 349-365.
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Jarling, R.; Sadeghi, M.; Drozdowska, M.; Lahme, S.; Buckel, W.; Rabus, R.; Widdel, F.; Golding, B. T.; Wilkes, H. (2012): Stereochemische Untersuchungen enthüllen den Mechanismus der sauerstofffreien Aktivierung von n-Alkanen durch Bakterien. Angewandte Chemie, 124, 6, 1362-1366.
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Ismail, S.; Schulz, H.-M.; Wilkes, H.; Horsfield, B.; di Primio, R.; Dransfield, M.; Nederlof, P.; Tomeh, R. (2010): Sedimentology, geochemistry and hydrocarbon potential of the Late Cretaceaous Shiranish Formation in the Euphrates Graben (Syria).. - In: Vining, B. A.; Pickering, S. C. (Eds.), Petroleum Geology: From Mature Basins to New Frontiers ; Proceedings of the 7th Petroleum Geology Conference, Geological Society, 811-819.
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Ismail, S.; Schulz, H.-M.; Wilkes, H.; Horsfield, B.; Dransfield, M.; Nederlof, P.; Tomeh, R. (2010): Sedimentology, geochemistry and hydrocarbon potential of the Late Cretaceous Shiranish Formation in the Euphrates Graben (Syria). - In: Vining, B.; Pickering, S. (Eds.), Petroleum geology: from mature basins to new frontiers ; proceedings of the 7th Petroleum Geology Conference, Geological Society, 811-819.
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Vieth, A.; Wilkes, H. (2010): Stable isotopes in understanding origin and degradation processes of petroleum. - In: Timmis, Kenneth N. (Eds.), Handbook of Hydrocarbon and Lipid Microbiology, Springer, 99-111.
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Wilkes, H. (2010): Methods of Hydrocarbon Analysis. - In: Timmis, K. N. (Eds.), Handbook of Hydrocarbon and Lipid Microbiology, Springer, 49-66.
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Wilkes, H.; Schwarzbauer, J. (2010): Hydrocarbons: An Introduction to Structure, Physico-Chemical Properties and Natural Occurrence. - In: Timmis, K. N. (Eds.), Handbook of Hydrocarbon and Lipid Microbiology, Part 1, Springer, 1-48.
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Hartkopf-Fröder, C.; Kloppisch, M.; Mann, U.; Neumann-Mahlkau, P.; Schäfer, R.G.; Wilkes, H. (2007): The end-Frasnian mass extinction in the Eifelian Mountains, Germany: new insights from organic matter composition and preservation. - In: Becker, R.T.; Kirchgasser, W.T. (Eds.), Devonian Events and Correlations, Geological Society of London, 173-196.
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Horsfield, B.; Kieft, T. L.; Amann, H.; Franks, S. G.; Kallmeyer, J.; Mangelsdorf, K.; Parkes, R. J.; Wagner, D.; Wilkes, H.; Zink, K.-G. (2007): The GeoBiosphere. - In: Harms, U.; Koeberl, Ch.; Zoback, M. D. (Eds.), Continental Scientific Drilling : A Decade of Progress, and Challenges for the Future, Springer, 163-212.
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Haberer, R. M.; Mangelsdorf, K.; Dieckmann, V.; Fuhrmann, A.; Wilkes, H.; Horsfield, B. (2005): Characterization of the organic matter in lignites of the Kugmallit Formation (Oligocene) at the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well. - In: Dallimore, S. R.; Collett, T. S. (Eds.), Scientifique Results from Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, Northwest Territories, Canada, Geological Survey of Canada.
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Mangelsdorf, K.; Haberer, R. M.; Zink, K.-G.; Dieckmann, V.; Wilkes, H.; Horsfield, B. (2005): Molecular indicators for the occurrence of deep microbial communities at the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well. - In: Dallimore, S. R.; Collett, T. S. (Eds.), Scientifique Results from Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, Northwest Territories, Canada, Geological Survey of Canada, 1-11.
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Murillo, W.; Vieth-Hillebrand, A.; Wilkes, H. (2012): New insights into the effects of primary and in-reservoir processes in the Norwegian South Viking Graben using compound-specific carbon and hydrogen isotopic composition in crude oils. Book of abstracts, Jesium 2012 - Joint European Stable Isotope Users Group Meeting (Leipzig, Germany 2012), 177-178.
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Rach, O.; Brauer, A.; Wilkes, H.; Sachse, D. (2012): Atmospheric circulation shifts during the Younger Dryas inWestern Europe. General Assembly European Geosciences Union (Vienna, Austria 2012).
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Berbesi, L.; di Primio, R.; Anka, Z.; Horsfield, B.; Wilkes, H. (2011): Addressing thermogenic and biogenic gas emissions during the formation of the oil sands deposits of the Western Canada Basin. Book of Abstracts, 25th International Meeting on Organic Geochemistry - IMOG (Interlaken, Switzerland 2011), P-089.
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Jarling, R.; Sadeghi, M.; Drozdowska, M.; Lahme, S.; Buckel, W.; Golding, B. T.; Rabus, R.; Widdel, F.; Wilkes, H. (2011): Stereoselective gas chromatographic separation of carboxylic acids formed during n-alkane metabolism in anaerobic bacteria. EUROanalysis 16 (Belgrade, Serbia 2011).
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Pötz, S.; Vieth-Hillebrand, A.; Wilkes, H. (2011): Strategies for the assessment of fluid mixing in petroleum systems. Book of Abstracts, 25th International Meeting on Organic Geochemistry - IMOG (Interlaken, Switzerland 2011), P-347.
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Schmidt, F.; Oberhänsli, H.; Wilkes, H. (2011): Hydrological and biogeochemical variations in the hypersaline Lake Tswaing (South Africa) during the last 84 ka BP. Book of Abstracts, 25th International Meeting on Organic Geochemistry - IMOG (Interlaken, Switzerland 2011), P-465.
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Wilkes, H.; Trautwein, K.; Rabus, R. (2011): Anaerobic oxidation of plant-derived 3-phenylpropanoids by the denitrifying bacterium - Aromatoleum aromaticum‖ EbN1. Book of Abstracts, 25th International Meeting on Organic Geochemistry - IMOG (Interlaken, Switzerland 2011), P-513.
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Yanovskaya, S.; Sagachenko, T.; Wilkes, H. (2011): Nitrogen compounds in organic matter of rocks from upper Jurassic deposits of Western Siberia. Book of Abstracts, 25th International Meeting on Organic Geochemistry - IMOG (Interlaken, Switzerland 2011), P-284.
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Vieth, A.; Haberer, R. M.; Wilkes, H.; Horsfield, B. (2010): Evaluation of reservoir alteration processes using compound-specific carbon and hydrogen isotope ratios. General Assembly European Geosciences Union (Vienna, Austria 2010).
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Aichner, B.; Wilkes, H.; Herzschuh, U. (2009): δ{delta}13C and δ{delta}D values of biomarkers in aquatic macrophytes, surface sediments and in a sediment core from the Eastern Tibetan Plateau. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 158 (P-58).
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Basilio Janke, E.; Wilkes, H.; Vieth, A.; Kühner, S.; Rabus, R. (2009): Variability of metabolite patterns formed during anaerobic growth of diverse hydrocarbon-degrading bacteria on crude oil. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009).
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Elias, R.; Wilkes, H. (2009): Abundance of aromatic hydrocarbons in biodegraded crude oils and possible controls on compound-specific degradation rates. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 476 (P-368).
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Haberer, R. M.; Vieth, A.; Wilkes, H.; Horsfield, B. (2009): Quantification of petroleum alteration processes on the reservoir scale; a case study offshore Norway. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 481 (P-373).
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Ismail, S.; Schulz, H.-M.; Wilkes, H.; Horsfield, B.; Dransfield, M.; Nederlof, P. (2009): What controlled the hydrocarbon potential of Late Cretaceous sediments in the Euphrates Graben, Syria-a paleoceanographic reconstruction of the up to km-thick Shiranish Formation (Campanian-Maastrichtian). 7th Petroleum Geology Conference: from Mature Basins to New Frontiers (London 2009).
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Pötz, S.; Erstad, K.; Wilkes, H.; Barth, T.; Horsfield, B. (2009): Characterization of acidic constituents in biodegraded crude oils using off-line fractionation and high resolution electrospray ionization mass spectrometry. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 479 (P-371).
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Pötz, S.; Erstad, K.; Witt, M.; Wilkes, H.; Barth, T. (2009): Molecular Characterization of Hydrate Active Components in Petroleum Acid Fractions using Electrospray Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. 18th International Mass Spectrometry Conference (IMSC) (Bremen 2009).
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Sachse, D.; Gleixner, G.; Wilkes, H.; Kahmen, A. (2009): Environmental factors and plant physiological processes that control the hydrogen isotopic composition of higher plant biomarkers – relevance for the application in paleoclimate studies. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 12 (O-10).
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Vieth, A.; Gabriel, M.; Wilkes, H. (2009): Application of compound-specific carbon and hydrogen isotope ratios to evaluate alteration processes in petroleum reservoirs. Annual Meeting of the German Association for Stable Isotope Research (GASIR) (Potsdam, Germany 2009).
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Vieth, A.; Haberer, R. M.; Wilkes, H.; Horsfield, B. (2009): Evaluation of reservoir alteration processes using compound-specific carbon and hydrogen isotope ratios. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 31 (O-27).
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Vieth, A.; Haberer, R.-M.; Wilkes, H.; Horsfield, B. (2009): Application of compound-specific carbon and hydrogen isotope ratios to evaluate alteration processes in petroleum reservoirs. Isocompound Workshop (Potsdam, Germany 2009).
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Wilkes, H.; Kühner, S.; Widdel, F.; Rabus, R. (2009): Anaerobic co-oxidation of toluene by n-alkane-degrading denitrifying and sulphate-reducing bacteria. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 286 (P-184).
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Yesiladali, Ö. B.; Yalcin, M. N.; Wilkes, H. (2009): Lipid biomarkers of Marmara Lake sediments: Implications for the Holocene Paleoecology of Western Anatolia-Turkey. Book of Abstracts, 24th International Meeting on Organic Geochemistry (IMOG) (Bremen 2009), 132 (P-32).
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Pötz, S.; Wilkes, H. (2008): High resolution electrospray ionization mass spectrometric measurements of complex mixtures with a double focusing magnetic sector field mass spectrometer. 41. Jahrestagung der Deutschen Gesellschaft für Massenspektrometrie (Gießen 2008).
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Pötz, S.; Wilkes, H.; Horsfield, B. (2008): Characterization of acidic compounds in crude oils by electrospray mass spectrometry. ALAGO 2008 Meeting (Venezuela 2008).
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Aichner, B.; Herzschuh, U.; Wilkes, H. (2007): Carbon Isotope Analysis Of n-Alkanes In Recent Lake Sediments From Tibet. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Aldahik, A.; Wilkes, H.; Schulz, H.-M.; Horsfield, B.; Dominik, W.; Nederlof, P. (2007): Oil families in the Euphrates Graben, Syria. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Bulkan Yesiladali, O.; Wilkes, H.; Yalcin, N. (2007): Organic geochemical evidence for paleo-environmental conditions in Marmara Lake, Western Turkey.. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Elias, R.; Vieth, A.; Riva, A.; Horsfield, B.; Wilkes, H. (2007): Quantification of biodegradation and determination of alteration patterns in crude oils. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Haberer, R. M.; Vieth, A.; Wilkes, H.; di Primio, R.; Horsfield, B. (2007): Using heterocompounds and stable isotopes to quantify and predict alteration processes in petroleum reservoirs. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Ismail, S.; Schulz, H.-M.; Wilkes, H.; Horsfield, B.; Dominik, W.; Nederlof, P. (2007): Source rock characteristics of the Shiranish Formation in the Euphrates Graben, Syria.. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Kristen, I.; Wilkes, H.; Plessen, B.; Vieth, A.; Thorpe, J.; Oberhänsli, H. (2007): Tracing environmental change in Lake Tswaing (South Africa) using biomarker and stable carbon isotopes. 4th International Limnogeology Congress (ILIC 2007) - Limnogeology: tales of an evolving Earth. Programme and abstracts book, 4th International Limnogeology Congress (ILIC 2007) (Barcelona 2007), 163-164.
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Theuerkorn, K.; Horsfield, B.; di Primio, R.; Wilkes, H. (2007): Using asphaltenes to reconstruct the original charge compositions and volumetrics of petroleum in reservoir compartments. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Wilkes, H.; Vieth, A.; Elias, R.; Kühner, S.; Rabus, R. (2007): Controls On The Compositional Alteration Of Crude Oil During In Reservoir Biodegradation.. Book of Abstracts, 23rd International Meeting on Organic Geochemistry - IMOG (Torquay, Devon, United Kingdom 2007).
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Elias, R.; Vieth, A.; Riva, A.; Horsfield, B.; Wilkes, H. (2006): Improved assessment of biodegradation extent and prediction of petroleum quality for crude oils from the Gullfaks area, offshore Norway.. 10th Norwegian Meeting on Organic Geochemistry (Bergen/Norway 2006).
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Elias, R.; Vieth, A.; Riva, A.; Horsfield, B.; Wilkes, H. (2006): Improved assessment of biodegradation extent and prediction of petroleum quality for crude oils from the South Atlantic margin.. 10th ALAGO Congress on Organic Geochemistry (Salvador/Brazil 2006).
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Vieth, A.; Elias, R.; Kühner, S.; Rabus, R.; Wilkes, H. (2006): Using carbon and hydrogen isotopic compositions of hydrocarbons to decipher biodegradation effects in petroleum reservoirs. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
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Vieth, A.; Elias, R.; Wilkes, H. (2006): Carbon and hydrogen isotope fractionation of light hydrocarbons in crude oils to characterize in-reservoir alteration processes.. 29. Jahrestagung der Arbeitsgemeinschaft für stabile Isotope (ASI) (Freiberg 2006).
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Wilkes, H.; Vieth, A.; Elias, R.; Kühner, S.; Rabus, R. (2006): Carbon and hydrogen isotope fractionation during biodegradation: From laboratory studies to petroleum reservoirs.. 10th Norwegian Meeting on Organic Geochemistry (Bergen/Norway 2006).
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Wilkes, H.; Vieth, A.; Elias, R.; Kühner, S.; Rabus, R. (2006): Carbon and Hydrogen Isotope Fractionation during Biodegradation: from Laboratory Studies to Petroleum Reservoirs.. 10th ALAGO Congress on Organic Geochemistry (Salvador/Brazil 2006).
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Dutta, S.; Greenwood, P.; Brocke, R.; Hartkopf-Fröder, C.; Schaefer, R. G.; Wilkes, H.; Mann, U. (2005): Tricyclic terpenoids from Paleozoic tasmanites: a question of evolution, site or taxa?. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 718-719.
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Elias, R.; Müller, A.; Vieth, A.; Riva, A.; Wilkes, H. (2005): Compositional alteration of crude oils from different petroleum systems during initial biodegradation. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 354-355.
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Fuhrmann, A.; Lopez, J. F.; Horsfield, B.; Wilkes, H.; Hu, L. (2005): Facies, thermal maturity and correlation of source rocks and crude oils in the Western Depression of the Liaohe basin, P.R. China using molecular markers.. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 227-228.
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Kloppisch, M.; Kenig, F.; Mann, U.; Wilkes, H. (2005): The Frasnian/Famennian faunal turnover: new insights from lipid compositions of the Kellwasser horizons and adjacent strata. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 867-868.
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Kristen, I.; Fuhrmann, A.; Haug, G. H.; Horsfield, B.; Oberhänsli, H.; Partridge, T. C.; Thorpe, J.; Wilkes, H. (2005): New Insights Into the Climate and Vegetation History of the subtropical Crater Lake 'Tswaing', South Africa, for the Last 300,000. AGU 2005 Fall Meeting (San Francisco 2005).
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Kristen, I.; Fuhrmann, A.; Haug, G. H.; Horsfield, B.; Oberhänsli, H.; Thorpe, J.; Wilkes, H. (2005): New insights into the climatic and vegetational history of the subtropical crater lake 'Tswaing', South Africa, for the last ~300.000 years. Organic Geochemistry: Challenges for the 21st Century (Vol. 2). Book of Abstracts, 22nd International Meeting on Organic Geochemistry (IMOG) (Sevilla, Spain 2005), 869-870.
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Pedersen, B. S.; Mills, N.; Wilkes, H.; Barth, T. (2005): Biodegradation of crude oil on the Norwegian Continental Shelf.. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 405-406.
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Scherf, A.-K.; Wilkes, H.; Rullkötter, J. (2005): Microbial alteration of crude oils: chain length dependency of n-alkane degradation. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 379-380.
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Vieth, A.; Wilkes, H. (2005): Assessing In-Reservoir Microbial Degradation of Light Hydrocarbons Using Stable Carbon and Hydrogen Isotopic Signatures. AAPG 2005 Annual Meeting (Calgary, Alberta 2005).
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Vieth, A.; Wilkes, H. (2005): Quantifying the mass loss of light hydrocarbons during in-reservoir biodegradation using their stable isotopic compositions. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 191-192.
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Wilkes, H.; Fuhrmann, A.; Lüders, V.; Dieckmann, V.; Horsfield, B. (2005): Composition of organic matter in Cretaceous sediments of the ICDP-Chicxulub drill core YAX-1. Organic Geochemistry: Challenges for the 21th Century, 22nd International Meeting on Organic Geochemistry (22 IMOG) (Seville, Spain 2005), 609-610.
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Wilkes, H.; Vieth, A.; Kniemeyer, O.; Widdel, F.; Rabus, R. (2005): Anaerobic biodegradation of hydrocarbons: molecular mechanisms and stable isotope fractionation. GeoErlangen 2005 : Program and abstracts, GeoErlangen 2005: System Earth - Biosphere Coupling/Regional Geology of Central Europe (Erlangen 2005).
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Wilkes, H.; Vieth, A.; Kniemeyer, O.; Widdel, F.; Rabus, R. (2005): Anaerobic biodegradation of hydrocarbons: molecular mechanisms and stable isotope fractionation. GeoErlangen 2005 : Program and abstracts, GeoErlangen 2005: System Earth - Biosphere Coupling/Regional Geology of Central Europe (Erlangen 2005).
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Haberer, R. M.; Mangelsdorf, K.; Wilkes, H.; Horsfield, B. (2003): Bulk and molecular investigations of deep subsurface sediments at the Mallik 5L-38 Gas Hydrate Research Well, Mackenzie River Delta, Canada. Book of Abstracts, Part I, 21th International Meeting on Organic Geochemistry (Kraków, Poland 2003), 273-274.
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Mangelsdorf, K.; Haberer, R. M.; Zink, K.-G.; Wilkes, H. (2003): Molecular indicators for viable microbial communities of the deep biosphere in sediments of the Mackenzie River Delta, Northwest Territories, Canada. Book of Abstracts, Part I, 21th International Meeting on Organic Geochemistry (Kraków, Poland 2003), 275-276.
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Wilkes, H.; Kühner, S.; Bolm, C.; Classen, A.; Fischer, T.; Widdel, F.; Rabus, R. (2003): Can co-oxidation of hydrocarbons contribute to compositional alteration of crude oil during anaerobic biodegradation?. Book of Abstracts, Part I, 21th International Meeting on Organic Geochemistry (Kraków, Poland 2003), 91-92.
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Zink, K-G.; Mangelsdorf, K.; Wilkes, H.; Horsfield, B. (2003): Intact microbial lipids - Life markers in deep subsurface environments. Book of Abstracts, Part I, 21th International Meeting on Organic Geochemistry (Kraków, Poland 2003), 89-90.
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Oldenburg, T. B. P.; Wilkes, H.; Horsfield, B.; van Duin, A. C. T.; Stoddart, D.; Wilhelms, A. (2001): Tracing migration, water washing and biodegradation in the Tampen Spur, offshore Norway, using xanthones, carbazoles and fluorenones. 20th International Meeting on Organic Geochemistry.
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Rabus, R.; Wilkes, H.; Widdel, F. (2001): Anaerobic microbial degradation of hydrocarbons: Organisms and reactions. Earth System Processes - Global Meeting (Edinburgh 2001).
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Wilkes, H.; Rabus, R.; Widdel, F. (2001): Molecular insights into the anaerobic biodegradation of hydrocarbons and petroleum. Earth System Processes.
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Zink, K.-G.; Wilkes, H.; Horsfield, B. (2001): Development and application of biomarkers for the characterization of deep sub-surface microbial communities. 20th International Meeting on Organic Geochemistry.
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