Organische Geochemie

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