Organische Geochemie


Bauersachs, T., Russell,J.M., Evans, T.W., Schwalb, A., Schwark, L. (2021)
A heterocyte glycolipid-based calibration to reconstruct past continental climate change. Nature Communications,

Stockhausen, M., Galimberti, R., Elias, R., Di Paolo, L., Schwark, L. (2021)
Expulsinator assessment of oil/ gas generation and expulsion characteristics of different source rocks. Marine and Petroleum Geology 129, 105057,

Wang, S., Wang, X., Jiang, Y., Han, C., Jetten, M.S.M., Schwark, L., Zhu, G. (2021)
Abundance and Functional Importance of Complete Ammonia Oxidizers and Other Nitrifiers in a Riparian Ecosystem. Environmental Science & Technology,

Zanon, M., Feeser, I., Dreibrod, S., Schwark, L., van den Bogaard, C., Dörfler, W. (2021)
Exploring short-term ecosystem dynamics in connection with the Early Holocene Saksunarvatn Ash fallout over continental Europe. Quaternary Science Reviews 253, 106722,


Smith, V., Warny, S., Grice, K., Schaefer, B., Whalen, M.T., Vellekoop, J., Chenot, E., Gulick, S.P.S., Arenillas, I., Arz, J., Bauersachs, T., Bralower, T., Demory, F., Gattacceca, J., Jones, H., Lofi, J., Lowery, C.M., Morgan, J., Nuñez Otaño, N.B., O'Keefe, J.M.K., O'Malley, K., Rodríguez-Tovar, F.J., Schwark, L. (2020).
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum. Climate of the Past 16, 1889-1899,

Ruebsam,W., Reolid, M., Sabatino, N., Masetti, D., Schwark, L. (2020)
Molecular paleothermometry of the early Toarcian climate perturbation. Global and Planetary Change 195, 103351,

Stockhausen, M., Galimberti, R., Elias, R., Di Paolo, L., Schwark, L. (2020)
The Expulsinator versus conventional pyrolysis: The differences of oil/gas generation and expulsion simulation under near-natural conditions. Marine and Petroleum Geology 117,104412,

Ruebsam,W., Pienkowski, G., Schwark, L. (2020)
Toarcian climate and carbon cycle perturbations - its impact on sea-level changes, enhanced mobilization and oxidation of fossil organic matter. Earth and Planetary Science Letters 546, 116417,

Dreibrodt, S., Hofmann, R., Sipos, G., Schwark, L., Videiko, M., Shatilo, M., Martini, S., Saggau, P., Bork, H.R., Kirleis, W., Duttmann, R., Müller, J. (2020)
Holocene soil erosion in Eastern Europe-land use and/or climate controlled? The example of a catchment at the Giant Chalcolithic settlement at Maidanetske, central Ukraine. Geomorphology 367, 107302, DOI:

Weber, J., Schwark, L. (2020)
Epicuticular wax lipid composition of endemic European Betula species in a simulated ontogenetic/diagenetic continuum and its application to chemotaxonomy and paleobotany. Science of the Total Environment 730, 138324,

Weber, J., Bauersachs, T., Schwark, L. (2020)
A multiphasic Younger Dryas cold period recorded in sediments of Lake Steisslingen, SW-Germany: A biomarker perspective. Quaternary International 542, 121-136,

Weber, J., Brozio, J.P, Müller, J., Schwark, L. (2020)
Grave gifts manifest the ritual status of cattle in Neolithic societies of northern Germany. Journal of Archaeological Sciences 117, 105122,

Ruebsam,W., Reolid, M., Marok, A., Schwark L. (2020)
Drivers of benthic extinction during the early Toarcian (Early Jurassic) at the northern Gondwana paleomargin: implications for paleoceanographic conditions. Earth Science Reviews 203, 103117,

Bauersachs, T., Gugger, M., Schwark, L. (2020)
Heterocyte glycolipid diketones: A novel type of biomarker in the N2-fixing heterocytous cyanobacterium Microchaete sp. Organic Geochemistry 141, 103976,

Plet, C., Grice, K., Scarlett, A.G. Ruebsam, W., Holmann, A.I., Schwark, L. (2020)
Aromatic hydrocarbons provide new insight into carbonate concretion formation and the impact of eogenesis on organic matter. Organic Geochemistry 143, 103961,

Schaefer, B., Grice, K., Coolen, M.L., Summons, R.E., Cui, X., Bauersachs, T., Schwark, L., Böttcher, M.E., Bralower, T.J., Lyons, S.L., Freeman, K., Cockell, C.S., Gulick, S.P., Morgan, J.V., Whalen, M., Lowery, M., Vajda, V. (2020).
Microbial life in the nascent Chicxulub crater. Geology 48, 328-332,

Edegbai, A.J., Schwark, L., Oboh-Ikuenobe, F.E. (2020).
Nature of dispersed organic matter and paleoxygenation of the Campano-Maastrichtian dark mudstone unit, Benin flank, western Anambra Basin: Implications for Maastrichtian Trans-Saharan seaway paleoceanographic conditions. Journal of African Earth Sciences 162, 103654,

Ruebsam,W., Reolid, M., Schwark L. (2020)
δ13C of terrestrial vegetation records Toarcian CO2 and climate gradients. Scientific Reports 10, 117,

Wang, S., Zhu, G., Zhuang, L., Li, Y., Liu, L., Lavik, G., Berg, M., Liu, S., Long, X., Guo, J., Jetten, M.S.M., Kuypers, M.M.M., Li, F., Ni, J., Schwark, L., Yin, C. (2020)
Anaerobic ammonium oxidation is a major N-sink in aquifer systems around the world. ISME Journal 14, 151-163,


Bauersachs, T., Miller, S., Gugger, M., Mudimu, O., Friedl, T., Schwark, L. (2019)
Heterocyst glycolipids indicate polyphyly of stigonematalean cyanobacteria. Phytochemistry 166, 112059;

Wang, S, Wang, W., Zhao, S., Wang, X., Hefting, M.M., Schwark, L., Zhu, G. (2019)
Anammox and denitrification separately dominate microbial N-loss in water saturated and unsaturated soils horizons of riparian zones. Water Research 162, 139-150,

Edegbai, A.J., Schwark, L., Oboh-Ikuenobe, F.E. (2019).
Campano-Maastrichtian paleoenvironment, paleotectonics and sediment provenance of Western Anambra Basin, Nigeria: Multi-proxy evidences from the Mamu Formation". Journal of African Earth Sciences 156, 203-239;

Winkler, P., Kaiser, K., Jahn, R., Mikutta, R., Fiedler, S., Cerli, C., Kölbl, A., Schulz, S., Jankowska, M., Schloter, M., Müller-Niggemann, C., Schwark, L., Woche, S.K., Kümmel, S., Utami, S.R., Kalbitz, K. (2019)
Tracing organic carbon and microbial community structure in mineralogically different soils exposed to redox fluctuations. Biogeoscienes 143, 31-54;

Zhu, G., Wang, S., Wang, C., Zhou, L., Zhao, S., Li, Y., Li, F., Jetten, M.S.M, Lu, Y., Schwark, L. (2019).
Resuscitation of anammox bacteria after >10,000 years of dormancy. ISME Journal 13, 1098-1109,

Stockhausen, M., Galimberti, R., Di Paolo, L., Elias, R., Gelin, F., Berner, U., Erdmann, Pedersen, J.H., Di Primio, R., Schwark, L. (2019)
The Expulsinator device: A new approach for a lab-scaled, near-natural generation- and expulsion simulation. Journal of Petroleum Science and Engineering 177, 69-78.

Edegbai, A.J., Schwark, L., Oboh-Ikuenobe, F.E. (2019).
A review of the latest Cenomanian to Maastrichtian geological evolution of Nigeria and its stratigraphic and paleogeographic implications. Journal of African Earth Sciences 150, 823-837.

Ruebsam, W., Mayer, B., Schwark., L. (2019).
Cryosphere carbon dynamics control early Toarcian global warming and sea level evolution. Global and Planetary Change 172, 440–453,


Ruebsam, W., Müller, T., Kovács, J., Pálfy, J., B., Schwark., L. (2018).
Environmental response to the Early Toarcian carbon cycle and climate perturbations in the northeastern part of the West-Tethys shelf. Gondwana Research 159, 144-158,

Pagès, A., Barnes, S., Schmid, S., Coveney Jr., R.M., Schwark, L., Liu, W., Grice, K., Fan, H., Wen, H. (2018).
Geochemical investigation of the Lower Cambrian mineralised black shales of South China and the Late Devonian Nick Deposit, Canada, Ore Geology Reviews 94, 396-413 doi:

Greenwood, P.F., Mohammed, L., Grice, K., McCulloch, M., Schwark, L. (2018).
The application of compound-specific sulfur isotopes to the oil–source rock correlation of Kurdistan petroleum. Organic Geochemistry 117, 22-30,


Plet, C., Grice, K., Pagès, A., Verrall, M., Coolen, M.J.L., Ruebsam, W., Rickard, W.D.A., Schwark, L. (2017)
Palaeobiology of red and white blood cell-like structures, collagen and cholesterol in an ichthyosaur bone. Scientific Reports Nature 7: 13776, DOI:10.1038/s41598-017-13873-4

Bauersachs, T., Talbot, H.M., Sidgwick, F., Sivonen, K., Schwark, L. (2017)
Lipid biomarker signatures as tracers for harmful cyanobacterial blooms in the Baltic Sea. PLOS ONE, 1-24. October 16, 2017

Jonas, A.-S., Schwark, L., Bauersachs T. (2017)
Late Quaternary water temperature variations of the Northwest Pacific based on the lipid paleothermometers TEXH86, UK´37 and LDI. Deep Sea Research Part I: 125, 81-93

Tulipani, S., Schwark, L., Holman, A., Bush, R.T., Grice, K. (2017)
1-Chloro n-alkanes: Potential mangrove and saltmarsh vegetation biomarkers. Organic Geochemistry 107, 54-58

Bläsing, M., Amelung, W., Schwark, L., Lehndorff, E. (2017).
Inland navigation: PAH inventories in soil and vegetation after EU fuel regulation 2009/30/EC. Science of the Total Environment 584, 19-28

Ruebsam, W., Dickson, A.J., Hoyer, E.M., Schwark, L. (2017)
Multiproxy reconstruction of oceanographic conditions in the southern epeiric Kupferschiefer Sea (Late Permian) based on redox-sensitive trace elements, molybdenum isotopes and biomarkers. Gondwana Research 44, 205-218

Heimhofer, U., Meister, P., Bernasconi, S.M., Ariztegui, D., Martill, D.M., Ariz-Nerto, A., Schwark., L. (2017)
Isotope and elemental geochemistry of black shale‐hosted fossiliferous concretions from the Cretaceous Santana Formation fossil Lagerstätte (Brazil). Sedimentology 64,150-167


Zink, K.-G., Vandergoes, M.J., Bauersachs, T., Newnham, R.M., Rees, A.B H., Schwark, L. (2016)
A refined paleotemperature calibration for New Zealand limnic environments using differentiation of branched glycerol dialkyl glycerol tetraether (brGDGT) sources. Journal of Quaternary Science 31, 823–83

Polgári, M., Hein, JR., Bíró, L., Gyollai, I., Németh, T., Sajgó, C., Fekete, J., Schwark, L. (2016)
Mineral and chemostratigraphy of a Toarcian black shale hosting Mn-carbonate microbialites (Úrkút, Hungary). Palaeogeography, Palaeoclimatology, Palaeoecology 459, 99-120

Woltering, M., Tulipani, S., Boreham, C.J., Walshe, J., Schwark, L., Grice, K. (2016)
Simultaneous quantitative analysis of Ni, VO, Cu, Zn and Mn geoporphyrins by liquid chromatography-high resolution multistage mass spectrometry: Method development and validation. Chemical Geology 441, 81-91

Mueller-Niggemann, C., Lehndorff, E., Amelung, W., Schwark, L. (2016)
Source and depth translocation of combustion residues in Chinese agroecosystems determined from parallel polycyclic aromatic hydrocarbon (PAH) and black carbon (BC) analysis. Organic Geochemistry 98, 27-37

Mueller-Niggemann, C., Utami, S.R., Marxen, A., Mangelsdorf, K., Bauersachs, T., Schwark, L. (2016)
Distribution of tetraether lipids in agricultural soils – differentiation between paddy and upland management. Biogeosciences Discussion 13, 1647–1666

Plet, C., Grice, K., Pagès, A., Ruebsam, W., Coolen, M.J.L., Schwark L. (2016)
Microbially-mediated fossil-bearing carbonate concretions and their significance for palaeoenvironmental reconstructions: A multi-proxy organic and inorganic geochemical appraisal. Chemical Geology 426, 95-108.

Bauersachs, T., Schwark, L. (2016)
Glycerol monoalkanol diethers: a novel series of archaeal lipids detected in hydrothermal environments. Rapid Communications in Mass Spectrometry 30, 54-64.


Fiedler, S., Berns, A.E., Schwark, L., Woelk, A.T., Graw, M. (2015)
The chemistry of death - adipocere degradation at modern graveyards. Forensic Science International 257, 320-328.

Tulipani, S., Grice, K., Greenwood, P.W, Haines, P., Sauer, P., Schimmelmann, A., Summons, R.E., Foster, C.B. Böttcher, M.E., Ted Playton, T., Schwark, L. (2015)
Changes in palaeoenvironmental conditions in Late Devonian Reef systems from the Canning Basin, WA: A biomarker and stable isotope approach. Gondwana Research, 28, 1500-1515.

Kölbl, A., Mueller-Niggemann, C., Schwark, L., Zhi-Hong Cao, Kögel-Knabner, I. (2015)
Spatial distribution of soil organic matter in two fields on tidal flat sediments (Zhejiang Province, China) differing in duration of paddy management. Journal of Plant Nutrition and Soil Science 178, 649–657.

Tulipani, S., Grice, K., Greenwood, P.W, Schwark, L. Summons, R.E., Böttcher, M.E., Foster, C.B. (2015)
Molecular proxies as indicators of freshwater incursion-driven salinity stratification. Chemical Geology 40, 61-68.

Bauersachs, T., Rochelmeier, J., Schwark, L. (2015)
Seasonal lake surface water temperature trends reflected by heterocyst glycolipid based molecular thermometers. Biogeosciences 12, 3741–3751

Bauersachs, T., Weidenbach, K., Schmitz-Streit, R., Schwark, L. (2015).
Distribution of glycerol ether lipids in halophilic, methanogenic and hyperthermophilic archaea. Organic Geochemistry 84, 101-108.

Mueller-Niggemann, C., Schwark L. (2015)
Chemotaxonomy and diagenesis of aliphatic hydrocarbons in rice plants and soils from land reclamation areas in the Zhejiang Province, China. Organic Geochemistry 8, 215-226.

Rübsam, W., Münzberger, P. Schwark, L. (2015)
Reply to the comment by Boulila and Hinnov towards “Chronology of the Early Toarcian environmental crisis in the Lorraine Sub-Basin (NE Paris Basin)”. Earth and Planetary Science Letters 416, 147–150

Jaraula, C.M.B, Schwark, L., Moreau, X., Pickel, W., Bagas, L., Grice, K. (2015)
Radiolytic alteration of biopolymers in the Mulga Rock uranium deposit. Applied Geochemistry 52, 97–108


Rübsam, W., Münzberger, P. Schwark, L. (2014).
Milankovitch and sea level controls of the Toarcian oceanic anoxic crisis: implications for the Toarcian timescale. Earth and Planetary Science Letters 404, 273–282

Bauersachs, T., Schouten, S., Schwark, L. (2014).
Characterization of the sedimentary organic matter preserved in the Messel oil shale by bulk geochemistry and stable isotopes. Palaeogeography, Palaeoclimatology, Palaeoecology 410, 390–400

Göcke, M., Hambach, U., Eckmeier, E., Schwark, L., Zöller, L., Fuchs, M., Löscher, M., Wiesenberg, G.L.B. (2014)
The paleoenvironmental record of the Late Pleistocene loess-paleosol sequences at Nussloch, SW Germany – new perspectives for interpretation of syn- and postsedimentary features using a high-resolution multi-proxy approach. Palaeogeography, Palaeoclimatology, Palaeoecology 410, 300–315

Bauersachs, T., Stal, L.J., Grego, M., Schwark, L. (2014)
Temperature induced changes in the hetero-cyst glycolipid composition of N2 fixing heterocyst cyanobacteria. Organic Geochemistry 69, 98-105

Kölbl, A., Schad, P., Jahn, R., Amelung, W., Bannert, A., Z.H. Cao, Fiedler, S., Kalbitz, K., Lehndorff, E., Müller-Niggemann, C., Schloter, M., Schwark, L., Vogelsang, V., Wissing, L., Kögel-Knabner, I. (2014)
Paddy management on marshlands in Zhejiang Province, China accelerates soil evolution. Geoderma 228-229, 67-89

Bauersachs, T., Mudimu, O., Schulz, R., Schwark, L. (2014)
Distribution of long chain heterocyst glycolipids in N2-fixing cyanobacteria of the order Stigonematales. Phytochemistry 98, 145-150

Lüke, C., Frenzel P., Ho, A., Fiantis, D., Schad, P., Schneider, B., Schwark, L., Utami, S.R. (2014)
Macroecology of methane oxidizing bacteria: The β-diversity of pmoA genotypes in tropical and subtropical rice paddies. Environmental Microbiology Environmental Microbiology Reports 16, 72-83


Schouten S., Hopmans E.C., Rosell-Melé A., Pearson A., Adam P., Bauersachs T., Bard E., Bernasconi S.M., Bianchi T.S., Brocks J.J., Carlson L.T., Castañeda I.S., Derenne S., Dogrul Selver A., Dutta K., Eglinton T., Fosse C., Galy V., Grice K., Hinrichs K.-U., Huang Y., Huguet A., Huguet C., Hurley S., Ingalls A., Jia G., Keely B., Knappy C., Kondo M., Krishnan S., Lincoln S., Lipp J., Mangelsdorf K., Martínez-García A., van der Meer J., Ménot G., Mets A., Mollenhauer G., Ohkouchi N., Ossebaar J., Pagani M., Pancost R. D., Pearson E.J., Peterse F., Reichart G.-J., Schaeffer P., Schmitt G., Schwark L., Shah S.R., Smith R.W., Smittenberg R.H., Takano Y., Talbot H.M., Taylor K.W.R., Tarazo R., van Dongen B.E., Van Mooy B.A.S., Wang J., Warren C., Weijers J.W.H., Werne J.P., Woltering M., Xie S., Yamamoto M., Yang H., Zhang C.L., Zhang Y., Zhao M., Sinninghe Damsté J.S. (2013)
An interlaboratory study of TEX86 and BIT analysis of sediments, extracts and standard mixtures. Geochem., Geophys., Geosyst. 14, 5263-5285.

Melendez, I., Grice, K., Schwark, L. (2013)
Coexistence of steroids in a diagenetic continuum. Scientific Reports Nature 3, 2768

Muschitiello, F. Schwark, L. Wohlfarth, B. Sturm, C. Hammarlund D. (2013)
New evidence of Holocene atmospheric circulation dynamics based on lake sediments from southern Sweden: a link to the Siberian High. Quaternary Science Reviews 77, 113-124

Tulipani, S., Grice, K., Greenwood, P.W., Schwark, L. (2013)
A pyrolysis and stable isotopic approach useful for investigating the geological origin of methyltrimethyltridecylchromans (MTTCs). Organic Geochemistry 61, 1-5

Lampe, C., Schwark, L. (2013)
Using various geochemical parameters to verify subsurface maturity anomalies induced by hydrothermal fluid flow – An example from the Upper Rhinegraben, Germany. In: Peters, K., Harris H. (eds.) "Thermal History Analysis of Sedimentary Basins: Methods and Applications". SEPM Special Publication 103, 187-198

Zhu G., Wang. S, Wang, W., Zhou, L., Jiang, B., Wang, Y., Op den Camp, H.J.M., Hefting, M., Risgaard-Petersen, N., Schwark, L., Jetten, M.S.M., Yin, C. (2013)
Hotspots of anaerobic ammonia oxidation in land/water ecotones. Nature Geoscience 6, 103-107.

Kalbitz, K. Kaiser, K., Fiedler, S., Kölbl, A., Amelung, W., Bräuer, T., Cao, Z.H., Don, A., Grootes, P.M., Jahn, R., Schwark, L., Vogelsang, V., Wissing, L., Kögel-Knabner, I. (2013)
The carbon count of 2000 years of rice cultivation. Global Change Biology 19, 1107-1113. DOI: 10.1111/gcb.12080

Authors: Schulte, P., Schwark, L.Stassen, P.Kouwenhoven, T.J.Bornemann, A.Speijer, R.P(2013)
Black shale formation during the Latest Danian Event and the Paleocene-Eocene Thermal Maximum in central Egypt: Two of a kind? Palaeogeography, Palaeoclimatology, Palaeoecology 371, 9-21.

Schwark, L. (2013)
Exceptional preservation of microbial lipids in Paleozoic to Mesoproterozoic sediments. Geology 41, 287-288.

Wolf, M., Lehndorff, E., Wiesenberg, G.L.B., Stockhausen, M., Schwark, L., Amelung W. (2013)
Reconstruction of past fire regimes by geochemical analyses of charcoals. Organic Geochemistry 55, 11-21.

Greenwood, P.F., Brocks, J.J., Grice, K., Schwark, L., Jaraula, C., Dick, J.M., Evans, K.A. (2013)
Organic Geochemistry and Mineralogy. I. Characterisation of Organic Matter Associated with Metal Deposits. Ore Geology Reviews 50, 1-27.


Wiesenberg, G.L.B., Schneckenberger, K., Schwark, L., Kuzyakov Y. (2012)
Use of molecular ratios to identify short term changes in fatty acid composition of Miscanthus x giganteus (Greef et Deu.) plant tissue, rhizosphere and rooftree soil during a laboratory experiment. Organic Geochemistry 46, 1-11.

Mueller-Niggemann, C., Bannert, A., Schloter, M., Lehndorff, E., Schwark, L. (2012)
Intra- versus intersite macroscale variation in biogeochemical properties along a paddy soil chronosequence. Biogeosciences 9, 1237-1251.


Gröcke, D. R., Hori, R. S., Trabucho-Alexandre, J., Kemp, D. B, Schwark, L. (2011)
An open ocean record of the Toarcian oceanic anoxic event. Solid Earth 2, 245–257.

Bannert, A., Mueller-Niggemann, C., Kleineidam, K., Wissing, L., Cao, Z.H., Schwark, L., Schloter, M. (2011)
Comparison of lipid biomarker and gene abundance characterizing the archaeal ammonia-oxidizing community in flooded soils. Biol Fertil Soils 47, 834-843.


Zink, K.G., Vandergoes, M.J., Mangelsdorf, K., Dieffenbacher-Krall, A.C., Schwark, L. (2010)
Application of bacterial glycerol dialkyl glycerol tetraethers (GDGTs) to develop modern and past temperature estimates from New Zealand lakes. Organic Geochemistry 41,1060-1066.

Lehndorff, E., Schwark ­­ L. (2010)
Biomonitoring of air quality in the Cologne Conurbation using pine needles as a passive sampler - part III: major and trace elements. Atmospheric Environment 24, 2822-2829.

Mügler, I., Gleixner, G., Schwalb, A., Schütt, B., Mäusbacher, R., Daut, G., Schwark, L., Xu, B., Yao, T., Zhu, L., Yi, Ch. (2010)
A multi-proxy approach to reconstruct hydrological changes and Holocene climate development of Nam Co, Central Tibet. Journal of Paleolimnology 43, 625-648.

van Koeverden, J.H., Karlsen D.A., Bakker-Owe, C., Chpizglous A., Schwark L. (2010)
Oil-generating Carboniferous coals in the Barents Sea: Implications for a Palaeozoic Petroleum System. Marine and Petroleum Geology 33, 155-182.


Schwark, L. (2009)
Hydrocarbons in the Pedosphere. Volume I, Chapt. 19, pp. 280-295, in: Handbook of Hydrocarbon and Lipid Microbiology. Ed. K. Timmins, Springer

Wiesenberg, G.L.B., Schneckenberger, K., Kuzyakov, K.Y., Schwark L. (2009)
Plant lipid composition is not affected by short-term 13C pulse labeling experiments. Journal of Plant Nutrition and Soil Science.172, 445-453.

Lehndorff, E., Schwark, L. (2009)
Biomonitoring airborne parent and alkylated three-ring PAHs in the Greater Cologne Conurbation II: Regional distribution patterns. Environmental Pollution 157, 1706-1713. doi:10.1016/j.envpol.2008.12.006    

Lehndorff, E., Schwark, L. (2009)
Biomonitoring airborne parent and alkylated three-ring PAHs in the Greater Cologne Conurbation I: Temporal accumulation patterns. Environmental Pollution 157, 1323-1331. doi:10.1016/j.envpol.2008.11.037

Schwark, L., Ferretti, A., Papazzoni, C.A., Trevisani, E. (2009)
Organic geochemistry of the Early Eocene Fossil-Lagerstätte of Bolca, Italy. Palaeogeography, Palaeoclimatology, Palaeoecology 273, 272-285. doi:10.1016/j.palaeo.2008.03.009

Lehndorff, E; Wiesenberg, GLB; Schwark, L. (2009)
Thermal degradation of rye and maize straw: Lipid pattern changes as a function of temperature. Organic Geochemistry 40, 167-174, 10.1016/j.orggeochem.2008.11.004




Algeo, T., Rowe, H., Hower, J.C., Schwark, L., Herrmann, A., and Heckel. P. (2008)
Changes in ocean denitrification during Late Carboniferous glacial-interglacial cycles. Nature Geoscience 1, 709-714, doi: 10.1038/ngeo307

Hallmann, C.O.E., Schwark, L. and Grice, K. (2008)
Community dynamics of anaerobic bacteria in deep petroleum reservoirs. Nature Geoscience 1, 1588-1591, doi: 10.1038/ngeo260

Rieger, A., Schwark, L., Cisternas, M.E., Miller, H. (2008)
Genesis and evolution of bitumen in volcanic ocoite-horizons of the Bandurrias Group and its implications for copper ore genesis in North Chile. Economic Geology 103, 387-404, doi: 0361-0128/08/3731/387-18

Reigstad, L.J., Richter, A., Daims, H., Urich, T., Schwark, L., Schleper, C. (2008)
Nitrification in terrestrial hot springs of Iceland and Kamchatka. FEMS Microbial Ecology 64,167-174, doi:10.1111/j.1574-6941.2008.00466.x

Lehndorff, E., Schwark, L. (2008)
Accumulation histories of major and trace elements on pine needles as function of air quality. Atmospheric Environment 42, 833-845, doi:10.1016/ j.atmosenv.2007.10.025 

Marschner, B., Brodowski, S., Dreves, A., Gleixner, G., Grootes, P.M., Hamer, U., Heim, A., Jandl, G., Ji, R., Kaiser, K., Kalbitz, K., Kramer, C., Rethemeyer, J., Schmidt, M.W.I., Schwark, L., Wiesenberg, G.L.B. (2008)
Is recalcitrance a relevant property for the stabilization of organic matter in soils? Journal of Plant Nutrition and Soil Science 178, 191-210; doi: 10/1002/jpln200700049

Wiesenberg, G.L.B., Schmidt, M.W.I., Schwark, L. (2008)
Plant and soil lipid modifications under elevated atmospheric CO2 conditions: I. Lipid distribution patterns. Organic Geochemistry 39, 91-102, doi:10.1016/j.orggeochem.2007.09.005

Wiesenberg, G.L.B., Schwarzbauer, J., Schmidt, M.W.I., Schwark L. (2008)
Plant and soil lipid modifications under elevated atmospheric CO2 conditions: II. Stable carbon isotopic values (13C) and turnover. Organic Geochemistry 39,103-117, doi: 10.1016/j.orggeochem.2007.09.006

vor 2008

Hallmann, C.O.E, Arouri, K.R., McKirdy, D.M, Schwark, L. (2007)
Temporal resolution of an oil charging history – a case study on residual benzocarbazoles from the Gidgealpa Field. Organic Geochemistry 38, 1516-1536

Leythaueser, D., Keuser, Ch., Schwark, L.
(2007). Molecular memory effects recording the accumulation history of petroleum reservoirs: The Heidrun Field, offshore Norway, as an example. Marine and Petroleum Geology 24, 199-220

Leininger, S., Urich, T., Schloter, M., Schwark, L., Ji, G., Nicol, G.W., Prosser, J.I., Schuster, S., Schleper C. (2006)
Archaea predominate among ammonia-oxidizing prokaryotes in soils. Nature 442, 806-809

Wiesenberg, G.L.B., Schwark, L. (2006)
Carboxylic acid distribution of temperate crop plants. Organic Geochemistry 37, 1973-1982

Scheffler, K., Buehmann, D., Schwark, L. (2006)
Analysis of Late Palaeozoic glacial to postglacial sedimentary successions in South Africa by geochemical proxies - Response to climate evolution and sedimentary environment. Palaeogeography, Palaeoclimatology, Palaeoecology 240, 184-203

Schwark, L., Empt, P. (2006)
Sterane biomarkers as indicators of palaeozoic algal evolution and extinction events. Palaeogeography, Palaeoclimatology, Palaeoecology 240, 225-236

Wiesenberg, G.L.B., Schwark, L., Schmidt, M.W.I. (2006)
Extractable lipids and colour in particle-size separates and bulk arable soils. European Journal of Soil Science 57, 634-643

Lehndorff, E., Urbat, M., Schwark, L. (2006)
Accumulation histories of magnetic particles on pine needles as function of air quality. Atmospheric Environment 40, 7082-7096

Franz, S.O., Schwark, L., Brüchmann, C., Scharf, B. , Klingel, R., Cagatay, M.N. & Ülgen, U.B. (2006)
Results from a multi-disciplinary sedimentary pilot study of tectonic Lake Iznik (NW-Turkey) Part I: Geochemistry and Paleolimnology of the Recent Past. Journal of Paleolimnology 35, 715-736

Kemp, D.B., Coe, A.L., Cohen, A.S., Schwark, L. (2006)
Reply to: P. B. Wignall, J. M. McArthur, C. T. S. Little & A. Hallam, Nature 442, E5-E6

Hallmann, C., Arouri, K.R., McKirdy, D.M., Schwark, L., (2006)
A new perspective on exploring the Cooper/Eromanga Petroleum Province – Evidence of an oil charging from the Warburton Basin. Journal of the Australian Petroleum Production and Exploration Association 2006, 261-281

Smernik, R.J., Schwark, L., Schmidt, M.W.I. (2006)
Assessing the quantitative reliability of solid-state 13C NMR spectra of kerogens across a gradient of thermal maturity. Solid State Nuclear Magnetic Resonance 29, 312-321

Kemp, D.B., Coe, A.L., Cohen, A.S., Schwark, L. (2005)
Astronomical pacing of methane release in the Early Jurassic. Nature 437, 396-399

Radke, J., Bechtel, A., Gaupp, R., Püttmann, W., Schwark, L., Sachse, D., Gleixner, G. (2005)
Linear relationship between hydrogen isotope ratios of lipid biomarkers and sediment maturity. Geochimica Cosmochimica Acta 69, 5517-5530

Hofmann, P., Duckensell, M., Chpitzglous, A., Schwark, L. (2005)
Reconstruction of depositional environment of Eocene oil shales (Prinz von Hessen, Germany): Implications for organic matter sedimentation in small tropical lakes. Journal of Paleolimnology 33, 155-168

Rumpel, C., Seraphin, A., Goebel, M.-O., Wiesenberg, G., Gonzales-Vila, F., Bachmann, J., Schwark, L., Michaelis, W., Mariotti, A. and Kögel-Knabner, I. (2004)
Organic matter in B and C horizons of an acid forest soil characterised by isotopic measurements, base hydrolysis, contact angle and pyrolysis. Journal of Plant Nutrition and Soil Science 167, 685-692

Wiesenberg, G.L.B., Schwarzbauer, J., Schmidt, M.W.I., Schwark, L. (2004)
Sources and turnover rates of soil organic matter derived from n-alkane / n-carboxylic acid compositions and C-isotope signatures. Organic Geochemistry 35, 1371-1393

Arouri, K.R., McKirdy, D.M., Schwark, L., Leythaeuser, D., Boult, P.J. (2004)
Accumulation and mixing of hydrocarbons in the Murteree Ridge oil fields, Cooper-Eromanga Basins, South Australia. Organic Geochemistry 35, 1597-1618 

Kramer, L., McKirdy, D.M., Arouri, K.R., Schwark, L., Leythaeuser, D. (2004)
Constraints on the hydrocarbon charge history of sandstone reservoirs in the Strzelecki Field, Eromanga Basin, South Australia. PESA Eastern Australasian Basins Symposium II, Adelaide, Proceedings Volume, 589-602

Korte, C., Kozur, H.W., Joachimski, M.M., Strauss, H., Veizer, J., Schwark, L. (2004)
Carbon, sulfur, oxygen and strontium isotope records and organic geochemistry across the Permian-Triassic boundary in Abadeh, Iran. International Journal of Geology, 93, 565-581

Sachse, D., Radke, J., Gaupp, R., Schwark, L., Lüniger, G., Gleixner, G. (2004)
Reconstruction of palaeohydrological conditions in a lagoon during the 2nd Zechstein cycle through simultaneous use of D-values of individual n-alkanes and 18O- and 13C-values of carbonates. International Journal of Geology 93, 554-564

Wohlfarth, B., Schwark, L., Bennike, O., Filimonova, L., Björkman, L., Brunnberg, L., Demidov, I., Possnert, G. (2004)
Unstable Early Holocene climatic and environmental conditions in northwestern Russia. The Holocene 14, 732-746

Rethemeyer, J., Kramer, C., Gleixner, G., Wiesenberg, G.L.B., Schwark, L., Andersen, N., Nadeau, M.-J., Grootes, P.M. (2004)
Complexity of soil organic matter: AMS 14C analysis of soil lipid fractions and individual compounds. Radiocarbon 46, 465-474

Cohen, A.S., Coe, L.A., Harding, S.M, Schwark, L. (2004)
Os-isotope evidence for a major perturbation in global climate and weathering during the early Jurassic. Geology 32, 157-160.

Urbat, M., E. Lehndorff, Schwark, L. (2004)
Assessment of air quality in the Cologne conurbation using pine needles as a passive sampler Part I - magnetic properties. Atmospheric Environment 38, 3783-3794

Lehndorff, E., Schwark, L. (2004)
Assessment of air quality in the Cologne Conurbation using pine needles as a passive sampler: Part II – PAH distribution. Atmospheric Environment 38, 3795-3810

Frimmel, A., Oschmann, W., Schwark, L. (2004)
Chemostratigraphy of the Posidonia Black Shale, SW-Germany: I – Influence of Sea Level Variation on Organic Facies Evolution. Chemical Geology 206, 199-230

Schwark, L., Frimmel, A. (2004)
Chemostratigraphy of the Posidonia Black Shale, SW-Germany: II – Assessment of extent and persistence of Photic Zone Anoxia via aryl isoprenoid distributions. Chemical Geology, 206, 231-248

Zink, K., Furtado, A. L. S., Casper, P., Schwark, L. (2004)
Organic matter composition in the sediment of three Brazilian coastal lagoons - District of Macaé, Rio de Janeiro (Brazil). Annals of the Brazilian Academy of Science, 76, 29-47

Algeo, T.J., Schwark, L., Hower, J.C. (2004)
High-resolution geochemistry and sequence stratigraphy of the Hushpuckney Shale: Implications for climato-environemental dynamics of the Late Pennsylvanian Midcontinent Seaway. Chemical Geology 206, 259-288

Wiesenberg, G.L.B., Schmidt, M.W.I., Schwark L. (2004)
Soil lipid fractionation for compound specific analyses - A rapid, highly reproducible procedure using automated extraction and separation procedures, European Journal of Soil Science 55, 349-356

Scheffler, K., Hoernes, S., Schwark, L. (2003)
Global changes during Carboniferous-Permian glaciation of Gondwana – Linking polar and equatorial climate evolution by geochemical proxies. Geology 31, 605-608.

Lechterbeck J., Schwark L. (2003)
A methodology for combined palynological and molecular geochemical high-resolution analysis of lake sediments. Review of Paleobotany and Palynology 126, 131-144

Lüniger, G., Schwark, L. (2002)
Organofacies and early diagenesis of organic matter from the Oligocene lacustrine Enspel Oil Shale Deposit, Germany. Journal of Sedimentology 148, 275-288

Schwark, L. Zink, K., Lechterbeck J. (2002)
Reconstruction of Postglacial to Early Holocene vegetation history in terrestrial Mid-Europe via cuticular lipid biomarkers and pollen records from lake sediments. Geology 30, 463-466

Schmid-Röhl, A., Röhl, J., Oschmann, W., Frimmel, A., Schwark, L. (2002)
The palaeo-environmental reconstruction of Lower Toarcian epicontinental black shales (Posidonia Shale, SW-Germany): global versus regional control. GEOBIOS 35, 13-20

Mayer, B., Schwark, L., Zink, K. G., Buhay, W. M., Lechterbeck, J. (2002)
New insights in postglacial paleoclimatic and paleenvironmental changes in Central Europe derived from isotope analyses of laminated lake sediments and peat deposits. - IAEA, C&S Papers Series 13/P, 319-325.

Hofmann, P., Ricken, W., Leythaeuser, D., Schwark, L. (2001)
Geochemical signatures and related climatic-oceanographic processes for early Albian black shales: Site 417D, North Atlantic Ocean. Cretaceous Research 22, 243-257

Zink, K., Leythaeuser, D., Melkonian, M., Schwark, L. (2001)
Palaeotemperature dependency of long-chain alkenone distributions in (Sub)Recent to fossil lake waters and sediments. Geochimica et Cosmochimica Acta 65, 253-265

Radke, J., Körner, F., Püttmann, W., Schneider, J., Schwark, L., Gleixner G. (2001)
Compound-specific stable hydrogen isotope ratios of lipids from different paleoenvironments and paleoclimates. Terra Nostra 4, 57-60

Korte, Ch., Veizer, J., Leythaeuser, D., Below, R., Schwark, L. (2001)
Evolution of Permian and Triassic 13C in marine and terrigenous organic material. Terra Nostra 4, 30-34

Hofmann, P. Leythaeuser, D., Schwark, L. (2001)
Organic matter from the Bunte Breccia of the Ries Crater, southern Germany: Investigating possible thermal effects of the impact. Earth and Planetary Science 49, 845-851

Röhl, H.-J., Schmid-Röhl, A., Oschmann, W., Frimmel, A., Schwark, L. (2001)
The Posidonia Shale (Lower Toarcian) of SW-Germany: An oxygen depleted ecosystem controlled by sea level and palaeoclimate. Palaeogeology, Palaeoclimatology, Palaeoecology 165, 27-52.

Bruckschen, P., Veizer, J., Schwark, L., Leytheuser, D. (2001)
Isotope stratigraphy for the transition from the late Paleozoic greenhouse into the Permo-Carboniferous icehouse. Terra Nostra, 4, 7-11

Scheffler, K., Hoernes, S., Schwark, L. (2001)
Changes in the sedimentary environment recorded in late Paleozoic sediments of the Paraná Basin. Zentralblatt Geologie und Paläonologie I, 155-166

Röhl, H.-J., Schmid-Röhl, A., Frimmel, A., Oschmann, W., Furrer, H., Schwark, L. (2001)
Microfacies, geochemistry and palaeoecology of the Middle Triassic Grenzbitumenzone from Monte San Giorgio (Tessin). Geologica Insubrica 6/1, 1-13.

Hofmann, P., Ricken, W., Schwark, L., Leythaeuser, D. (2000)
Carbon-sulfur-iron relationships and 13C of organic matter for late Albian sedimentary rocks from the North Atlantic Ocean: paleoceanographic implications. Palaeogeology, Palaeoclimatology, Palaeoecology 163, 97-113

Leythaeuser, D., Keuser, Ch., Schwark, L. (2000)
Reservoir filling history of the Heidrun Field, Haltenbanken region, offshore Norway as revealed by geochemistry of sequentially extracted residual oils. Marine and Petroleum Geology 17, 857-859

Radke, J., Brand, W.A., Schwark, L., Gleixner G. (2000)
Paleoclimatology - Interpretation of paleoenvironmental changes using compound-specific stable hydrogen isotope analysis, Isotopes and Environmental Health Studies 36, 391-397

Vliex, M., Schwark, L., Leythaeuser, D. (1999)
Organisch-geochemischer und organisch-petrologischer Nachweis von Meeresspiegel-Variationen im permischen Staßfurt-Karbonat in NE-Deutschland. - Zentralblatt Geologie und Paläonologie Teil I 1447-1467, Stuttgart.

Hofmann, P., Ricken, W., Schwark, L., Leythaeuser, D. (1999)
Coupled oceanic effects of climatic cycles from late Albian deep-sea sections of the North Atlantic. - In Barrera E., Johnson C. (eds.): The evolution of Cretaceous ocean/climate systems. Geological Society of America Special Paper 332, 143-159, Boulder.

Scholtis, A., Jones M., Vliex M., Schwark, L. (1999)
Organic matter characterization of rocks and pore waters. - In: Mont Terri Rock Laboratory (eds. Thury, M., Bossart, P.), Landeshydrologie und Geologie 23, 142-157, Swiss National and Hydrological Survey

Mayer, B., Schwark, L. (1999)
A 15.000 Year Stable Isotope Record form Lake Sediments of the Steisslinger See, Southwest Germany. Chemical Geology 161, 315-337

Hofmann, P., Ricken, W., Schwark, L., Leythaeuser, D. (1999)
Evidence for deep water anoxia during the late Albian off the western African continental margin: DSDP sites 367 and 369. Zentralblatt Geologie und Paläonologie Teil I 963-972, Stuttgart.

Hofmann, P., Schwark, L., Brachert, T., Badaut, D., Rivière, M., B. H. Purser (1998)
Sedimentation, organic geochemistry and diagenesis of cores from the axial zone of the southern Red Sea: relationships to rift dynamics and climate. In: B.H. Purser, D.W J. Bosence (eds): Sedimentation and tectonics of Rift Basins: Red Sea-Gulf of Aden. Chapman, Hall, 479-504.

Schwark, L., Vliex, M., Schaeffer, P. (1998)
Geochemical characterization of Malm Zeta laminated carbonates from the Franconian Alb, SW-Germany (II). Organic Geochemistry 29, 1921-1952

Schwark, L., Vliex, M., Karnin, W., Giesemann, K. (1998)
Untersuchungen an ausgewählten Mutter- und Speichergesteinen des Zechsteins am Beispiel der Bohrung Sprötau Z1 (Thüringer Becken). Geologisches Jahrbuch A 149, 185-211.

Schwark L., Stoddart D., Keuser C., Leythaeuser D. (1997)
A novel sequential extraction system for whole core plug extraction in a solvent flow through cell – application to extraction of residual petroleum from an intact pore system in secondary migration studies. Organic Geochemistry 26, 19-32

Leythaeuser D., Konstanty, J., Pankalla F., Schwark L., Krooss B., Ehrlich R., Schloemer S. (1997)
Gas Sealing Efficiency of Cap Rocks. DGMK Report 483, 174

Grice K., Schaeffer P., Schwark L., Maxwell J. (1997)
Changes in paleo-environmental conditions of the Permian Kupferschiefer (Lower Rhine Basin, northwest Germany) inferred from molecular and isotopic composition of biomarker components. Organic Geochemistry 26, 677-690

Schwark, L., Vliex, M., Lüniger, G., Leythaeuser, D. (1997)
Organic geochemical and isotopic evidence for paleoenvironmental change in the Permian Staßfurt Carbonate, Thuringia, induced by sea level variation. - 18th internat. Meeting on Organic Geochemistry, Maastricht, 1997: 861-862

Vliex, M., Schwark, L. (1997)
Geochemical characterisation of Malm Zeta laminated carbonates from the Franconian Alb, SW-Germany.-18th int. Meeting on Organic Geochemistry, Maastricht, 1997: 497-498; Jülich.

Vliex, M., Schwark, L., Lüniger, G., Leythaeuser, D. (1997)
Der organisch-geochemische Nachweis von Meeresspiegel-Variationen im permischen Staßfurt-Karbonat in NE-Deutschland. - Terra Nostra, 97, 249-250; Köln.

Grice K., Schaeffer P., Powell S., Schwark L., Maxwell J. (1996)
Molecular indicators of paleoenvironmental conditions in an immature Permian Shale (Kupferschiefer, Lower Rhine Basin, Germany) from free and sulfide-bound lipids. Organic Geochemistry 25, 131-147

Leythaeuser D., Schwark L. (eds.) (1996)
Palaeoenvironment and Source Rock Occurrence – Proc. of the 17th International Meeting on Organic Geochemistry, Organic Geochemistry 25, 163-251

Grice, K., Gibbison, R., Atkinson J.E., Schwark L., Eckardt C.B.E., Maxwell J.R. (1996)
Maleimides (1H-Pyrrole-2,5-diones) as indicators of anoxygenic photosynthesis in ancient water columns. Geochimica et Cosmochimica Acta 60, 3913-3924

Jian X., Wolf M., Schwark L. (1995)
Organic facies determination and origin of coal seam banding in lignites from the Jinsuo-Basin, Yunnan, Southwest-China.- In: Grimalt J.O. (ed) Organic Geochemistry 1995, 147-149

Jian X., Wolf M., Schwark L. (1995)
Eight-step pyrolysis in hydrogen and nitrogen atmospheres of six brown coals from major brown coal deposits in China. - In: Grimalt J.O. (ed) Organic Geochemistry 1995, 1009-1012

Konstanty, J., Schwark, L., Leythaeuser, D. (1995)
Geochemical effects of cap-rock leakage above gas reservoirs - Distribution of light hydrocarbons to monitor diffusive losses. - In: Grimalt J.O. (ed) Organic Geochemistry 1995, 313-315

Hauke V., Adam P., Trendel J., Albrecht P., Schwark L., Vliex M., Hagemann H., Püttmann W. (1995)
Isoarborinol through Geological Times: Evidence for its Presence in the Permian and Triassic. Organic Geochemistry 23, 91-93

Schwark, L., Xia, J., Honold, M., Slach, J., Leythaeuser, D., Horsfield, B. (1995)
Maturity assessment for organic matter in Permian Staßfurt Carbonate from Thuringia and Brandenburg, East Germany - Problems related to facies variation and migration. - In: Grimalt J.O. (ed) Organic Geochemistry 1995, 299-301

Schwark, L., Giessen, M., Spitthoff, B., Leythaeuser, D., Wuttke, M. (1995)
The Enspel Oil Shale deposit, FRG - Impact of catastrophic volcanic events on a fossil lake environment. - In: Grimalt J.O. (ed) Organic Geochemistry 1995, 123-125

Hauke V., Graff R., Wehrung P., Trendel J.M., Albrecht P., Schwark L., Keely B., Peakman T.M. (1992)
Novel triterpene-derived hydrocarbons of arborane/fernane series in Sediments - Part 1. Tetrahedron 48, 3915-3924

Schwark L., Püttmann W. (1990)
Aromatic hydrocarbon composition of the Permian Kupferschiefer in the Lower Rhine Basin, NW Germany. In: Durand B., Behar F. eds. (1990) Advances in Organic Geochemistry 1989; Organic Geochemistry 16, 749-761

Püttmann W., Eckardt C.B., Schwark L. (1989)
Use of biological marker distribution to study the thermal history of the Permian Kupferschiefer in the Lower Rhine Basin. Geologische Rundschau 78, 411-426