Organische Geochemie

2018

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, doi.org/10.1016/j.gr.2018.03.013



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: doi.org/10.1016/j.oregeorev.2018.02.004



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

2017

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. https://doi.org/10.1371/journal.pone.0186360 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

2016

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.

2015

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

2014

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

2013

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.

2012

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.

2011

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.

2010

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.

2009

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

 

 

2008

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