25th International Meeting on Organic Geochemistry IMOG 2011

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P-502 Soil organic matter characteristics in the permafrost terrain, European Russian Arctic: lability, storage, and impact of thawing Joyanto Routh 1,5 , Gustaf Hugelius 2 , Timothy Filley 3 , Patrick Crill 4 , Peter Kuhry 2 1 Department of Earth Sciences, IISER-Kolkata, Mohanpur, India, 2 Department of Physical Geography and Quaternary Geology, Stockholm University, Stockholm, Sweden, 3 Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, United States of America, 4 Department of Geological Sciences, Stockholm University, Stockholm, Sweden, 5 MTM, Örebro University, Örebro, Sweden (corresponding author:joyanto.routh@iiserkol.ac.in) Soils in high latitude terrestrial ecosystems store huge stocks of organic carbon because the low temperature and anoxic conditions from water logging reduce decomposition rates. Redistribution of these huge reservoirs of surface carbon pools driven by climate change poses a challenge. Particularly, the soils in permafrost regions including peatlands are most vulnerable to remobilization because of thawing and change in hydrologic conditions (1). The net C flux from these reserves however depends on the size and lability of the soil organic matter (SOM) pools. Here, we have characterized the SOM stored in soils representative of major land cover and soil types in the discontinuous permafrost terrain of European Russian Arctic. We are using an array of chemical analyses involving elemental ratios (C, N, and H), stable isotopes (C and N), and specific biomarkers (nalkanes, sterols, and lignin). The detailed characterization of SOM is supposed to yield information about: 1) the major components of SOM and it sources, 2) chemically labile vs. refractory fractions in SOM, and 3) OM preservation affected by depth/age in the soil profile in relation to permafrost conditions and/or changes in the active layer depth. Samples were collected from the tundra near Seida in the Usa Basin, west of the Ural Mountains. The mean annual temperature and precipitation are –6.1°C and 538 mm, respectively. The landscape is underlain by discontinuous permafrost (70-90%). The peat plateaus are underlain by nearly continuous permafrost, whereas permafrost-free sections are found in uplands and along river/stream valleys. Shrubs, lichens and mosses characterize the upland tundra on mineral soils. Isolated stands of spruce and downy birch can be found on permafrost -free ground. Peat plateaus were sampled near thermally eroding edges. Permafrost soils were cored using steel pipes hammered into the frozen peat. Permafrost-free fens were sampled using Russian corers. The samples were sectioned and freeze-dried. Radiocarbon analysis of bulk SOM samples was done at the Poznan Radiocarbon Laboratory, Poland. Elemental and stable isotope (C and N) analyses were done in decarbonated samples. Lipids were extracted and the samples were further cleaned/fractioned and derivitized (2) for analyses of n-alkanes, alkanols, and sterols. Lignin was analyzed using the CuO method (3). The OM extracts were analyzed on a GCMS. Basal peat ages range from 1500 (fens) to 9000 (peat plateaus) cal years B.P. Organic matter deposited is immature. The biomarkers indicate that higher plants are the primary source of OM. The concentrations of different biomarkers (e.g., n-alkanes sterols and lignin) increase with depth before reaching the mineral soil interface. The trend coincides with increase in age and humification. The low concentration of different biomarkers in upper samples results from OM degradation in surface exposed to thawing. The biomarker profiles vary suggesting dominance of one or more higher plant types in the peats or soils (e.g. Sphagnum vs. Equisetum). There is little indication of SOM degradation in the peats with depth. High Acid/Aldehyde ratio in lignin, which suggests OM degradation only occurs in surface sediments. In contrast, the permafrost free non-peatland soils indicate more decomposed material with increasing depths. The more labile components such as sterols and alkanols show greater variability in concentration with depth than n-alkanes and lignin. References: 1. Tarnocai, C., Canadell, J., Mazhitova, G., Schuur, E.A.G., Kuhry, P., and Zimov, S. (2009) Global Biogeochemical Cycles 23, GB2023. 2. Wakeham, S.G., Peterson, M.L., Hedges, J.I., Le, C. (2002) Deep-Sea Research II 49, 2265–2301. 3. Filley, T.R., Freeman, K.H., Bianchi, T.S., Baskaran, M., Colarusso, L.A., and Hatcher, P.G. (2001) Organic Geochemistry 32, 1153-1167. 623
P-503 Geochemical characterization of a meadow soil Tünde Nyilas 1 , Magdolna Hetényi 1 , Nóra Czirbus 1 , Anita Gál 2 , Csanád Sajgó 3 1 University of Szeged, Department of Mineralogy, Geochemistry and Petrology, Szeged, Hungary, 2 Szent István University, Department of Soil Science and Agrochemistry, Gödöllő, Hungary, 3 Institute for Geochemical Research, Hungarian Academy of Sciences, Budapest, Hungary (corresponding author:nyilas@gmail.com) During the last decade the geochemical investigation of soils has received increasing attention owing to the significant role played by both their mineral and organic composition in the processes of pedogenesis, in the migration of contaminants and in the global carbon cycle. Obtaining detailed information about different soil-chemical processes and determination of geochemical lines are based on the organic and inorganic geochemistry of soils. The soil organic matter has a great impact on the weathering of rocks and pedogenetic processes. Not only the amount and the bulk geochemical features of the organic matter but also the proportion of carbon pools with different thermal stability influence these processes. Changes in hydrological conditions can lead to the modification of soil-types. The aim of this work was to investigate mineral and organic geochemical characteristics of a typical meadow soil according to the Hungarian Soil Taxonomy [1]. Depth profile of elements, geochemical characterization of the organic matter (lipid contents, E4/E6 ratios of humic and fulvic acids) and soil chemical data were determined, as well as the mathematical deconvolutions of Rock-Eval pyrograms were performed. The soil profile was opened at Lake Csorba (North- East Hungary) on a former floodplain of River Sajó, currently under plowing. The pH is neutral-slightly alkaline (7.75, 7.89), the parent material is loess with sandy alluvial sediment. The main properties which are characteristic of the whole profile are the result of hydromorphic features including dark blackish-brown colour, Fe- and Mn-concretions, gleyic colour pattern and an abrupt change in organic matter content at ~80 cm. The organic matter content of the humus containing horizons is 2.8-2.2 %, with high base saturation (93-92 %) and high cation exchange capacity (36-28 cmol/kg). The humus content is lower than it could be expected on the basis of the colour of the humus containing horizons. This colour is due to the presence of Fe(II)-humus complexes formed under anaerob conditions. At ~80 cm organic matter content decreased to a minimum value (0.3 %) accompanied by the essentially increased amount of carbonate concretions. Between ~80-120 cm three (carbonate, gleyic and gravel) horizons can be distinguished. Similar organic matter (2.8, 2.2 %) and the same lipid (0.24 mg/g) contents were measured for the humus containing horizons. The depth trend of the E4/E6 ratio measured on fulvic and humic acids, together with that of the proportion of humic substances and resistant bio-macromolecules, reflected an intense leaching. It is supported by the increasing values (from -0.23 to 0.60) of I-index [2], which shows the relative importance of biomass versus the humic substances. Combined interpretation of the organic geochemical and inorganic soil chemical data revealed leaching. Besides the A horizon of constant organic matter content, the development of a thin transitional accumulation zone with downward decreasing organic matter content began. It suggested that features of chernozem soils started to evolve. As a consequence of the slight changes in the organic and inorganic features, resulting from the decreased water level, the studied meadow soil is classified as a Calcic Chernozem (Taptogleyic) according to the World Reference Base for Soil Resources [3] with a mollic diagnostic horizon. The project was supported by the Hungarian Scientific Research Found (OTKA) through grant K 81181. References [1] Stefanovits, P., 1963. The soils of Hungary. Akadémiai Kiadó. Budapest (in Hungarian) [2] Sebag, D., Disnar, J.R., Guillet, B., Di Giovanni, C., Verrecchia, E.P., Durand, A., 2006. Monitoring organic matter dynamics in soil profiles by Rock–Eval pyrolysis: bulk characterization and quantification of degradation. European Journal of Soil Science 57, 344–355. [3] FAO/ISRIC/ISSS, 2006. World Reference Base for Soil Resources. World Soil Resources Reports. No. 103. FAO. Rome. 624
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25th Inter
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Dear Conference Delegates, Preface
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Monday 19 th September 2011 - Morni
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Monday 19 th September 2011 - After
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Tuesday 20 th September 2011 - Afte
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Wednesday 21 st September 2011 - Mo
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Wednesday 21 st September 2011 - Af
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13.40 - 15.05 Poster Session 4 (In
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Friday 23 rd September 2011 - Morni
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Poster Sessions (in Kongress-Saal)
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P-026 Comparison of comprehensive t
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P-052 Incorporation of Archaeal and
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P-081 Geochemical evidence for two
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P-108 Organic geochemistry and Meso
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P-133 Can we estimate catchment-sca
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P-157 Can laterally advected interm
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P-182 The influence of hydrogen on
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P-207 Biomarkers along a holocene s
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P-232 Some experimental results on
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P-261 Natural gas generation, migra
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P-288 Re/Os fractionation during ge
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P-314 Chemometric analysis of oil-o
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P-340 Atypical fluids in offshore s
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P-366 Organic geochemical character
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P-392 Environmental forensic study
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P-416 Developing analytical protoco
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P-442 Deep-sea benthic archaea recy
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P-464 Effects of within-catchment p
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Poster Session 4 - Thursday 22 nd S
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Monday Oral Presentations 58
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O-02 Melting history of West Antarc
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O-04 Insights about the marine nitr
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O-06 Eocene out-of-India dispersal
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O-08 An integrated lipid biomarker
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O-10 Sulfur species as facilitators
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O-12 Sulfur isotope systematic of i
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O-14 Exploring the diversity of arc
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O-16 Improved genetic characterizat
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O-18 Petroleum system analysis Sout
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O-19 The borolithochromes: boron-co
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O-21 Study of the stable isotopic c
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O-23 Novel applications of trace me
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O-25 The chemical structure of inso
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O-27 Coenzyme factor 430: abundance
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O-29 Influence of temperature on me
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O-31 The fate of collembola derived
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O-33 Empirical relationship between
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O-35 Biomarker evidence for the Lat
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O-37 The seco-oleananes: identifica
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O-38 Microbial communities associat
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O-40 The importance of geochemical
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O-42 Charge history and petroleum g
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O-44 Bacterial formation of (di)eth
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O-46 Development of a novel tool fo
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O-48 Evolution of petroleum composi
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O-50 Beyond Orgas- BP’s new predi
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O-52 Nitrogen isotopes of amino aci
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O-54 Biomarker and petrographic evi
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O-55 The organic geochemistry of ca
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O-57 Exploring mass extinction even
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O-59 Black shale formation by micro
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O-61 The significant impact of weat
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O-63 Simultaneous shifts in tempera
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O-65 Fluxes and isotope composition
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O-67 Biogeochemical impact of CO2 e
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Bacteria number ml-1 Bacteria numbe
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O-71 Aquathermolysis: pressure effe
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O-73 Designing tight-shale producti
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O-74 Tracing 13C-labeled inorganic
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O-76 Carbon fluxes in phylogenetica
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O-78 Fluid property prediction from
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O-80 Denitrifying bacteria as poten
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O-82 Tetraether lipid profiles in c
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O-84 Prediction of gas volume and d
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Monday Poster Presentations 148
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P-002 Structure and function of asp
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P-004 Preliminary study of acid deg
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P-006 Chemical and geochemical char
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P-008 High resolution measurement o
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P-010 Acidic fraction analyses of B
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P-012 Heteroatom-containing compoun
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P-014 Evaluation of hydropyrolysis
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P-016 Iron isotopic compositions of
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P-018 Evaluation of accelerated sol
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P-020 Improvement of HPLC-protocols
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P-022 Open-system hydrous pyrolysis
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P-024 The phenolic characterisation
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P-026 Comparison of comprehensive t
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P-028 Characterisation of lignin de
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P-030 Trace analysis of methylated
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P-033 An evaluation of petroleum so
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P-035 Contrasting macromolecular or
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P-037 Evolution of depositional env
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P-039 Organic carbon content and ch
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P-041 Organic geochemistry of entra
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P-043 Petrological and organic geoc
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P-045 Occurrence and geochemical ch
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P-047 Characterization of lignites
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P-049 Organic matter of Lower Permi
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P-051 Kerogen sulphur, hydrogen and
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P-053 Sulfur-bound compounds in fre
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P-055 Organic matter preservation i
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P-058 Characterization of aromatic
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P-060 Biomarkers parameters used to
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P-063 Origin of crude oil with high
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P-065 Molecular maturation of Bitum
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P-067 C21-C23 steroidal tricyclic t
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P-069 The age and palaeoenvironment
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P-071 Structural characterization o
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P-074 Discussion on appliance of 25
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P-076 Lanostanes as the new biomark
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P-079 Geochemistry of ―just gener
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P-081 Geochemical evidence for two
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P-083 Thermal maturity assessment o
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P-085 Flash pyrolysis-gas chromatog
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P-087 Petroleum geochemistry of the
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P-089 Addressing thermogenic and bi
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P-091 Investigation of oil stabilit
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P-093 Organic geochemistry, petrole
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P-095 Natural petroleum fractionati
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P-097 Geochemistry of low-boiling
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P-099 Oxygen-containing compounds i
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P-101 Formation of giant deep-burie
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P-103 Geochemical characteristics o
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P-105 Challenges on the origin of o
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P-107 Caldera of the Uzon volcano a
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P-109 A saga on organic geochemistr
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P-111 An integrated inorganic and o
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P-114 Hydrocarbon generation potent
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P-116 Marine transgressional event
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P-118 The cracking kinetics of two
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P-120 The generation potential of t
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P-122 Organic geochemical character
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P-124 Compositional features of org
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P-126 The value of generation hydro
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P-128 Investigation of fish pond ma
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P-130 Bituminous mixtures of Hakemi
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P-132 Combined � 13 C - �D anal
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P-134 Biomarkers preserved in cave
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P-136 Analysis of insoluble organic
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P-139 Role and nature of organic ma
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P-141 Biosurfactants - a green alte
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P-143 Phenolic compounds in water l
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P-145 Current level of the organic
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P-147 The d13C composition of indiv
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P-149 Targeted chemical and physica
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P-151 Cu(II) complexation with humi
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P-153 Differentiation of indoor and
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P-156 A detailed study of the intac
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P-158 Unusual distribution of long-
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P-160 Biomarker signatures of metha
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P-162 Lipid biomarkers and bulk bio
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P-164 Chemotaxonomic composition an
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P-166 The role of two submarine can
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P-168 Correlation of crenarchaea an
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P-170 Microbial activity and abunda
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P-172 Microbially mediated carbonat
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P-174 Distinct microbial inventorie
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P-176 Microbial consortium mediatin
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P-178 Diversity of microbial commun
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P-180 Inhibition of anaerobic oil d
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P-182 The influence of hydrogen on
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P-184 Have they lost their heads? D
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P-187 Paleohydrological changes on
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P-189 Paleoenvironmental variations
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P-191 Highly branched isoprenoid al
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P-193 A new global calibration for
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P-195 Molecular fossils and the lat
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P-197 Sediment trap and core top st
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P-199 Detection of environmental ch
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P-201 Carbon and hydrogen isotope b
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P-203 Biogeochemical processes in H
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P-205 Lipid biomarker analysis of f
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P-207 Biomarkers along a holocene s
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P-209 A comparison of methane emiss
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P-211 Paleocene-Eocene Thermal Maxi
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P-213 Biomarker proxies indicate si
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P-215 Distributions of long-chain d
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P-217 The Vinylguaiacol/Indole or V
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P-219 The age and palaeoenvironment
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P-221 Differences in distribution o
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P-225 The change of land plant deri
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P-227 Terrestrial organic matter in
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P-229 Geochemical peculiarities of
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P-231 Bacteriohopanepolyol content
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P-233 Branched GDGTs in the Yenisei
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P-235 Simulation of organic matter
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P-237 Nature of C29 sterols in the
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P-239 Differentiation of organic ma
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P-242 Changes of Rock-Eval HI, OI,
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P-244 Identification and distributi
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P-246 Carbon isotopes and lipid bio
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P-248 Comparison of soil organic ma
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P-250 Biomarker distribution along
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Wednesday Poster Presentations 388
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P-255 Gas source classification in
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P-257 The components and carbon iso
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P-259 Stable carbon isotopes of coa
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P-261 Natural gas generation, migra
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P-264 Natural gas geochemistry of t
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P-266 Geochemical and isotopic char
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P-269 Distribution of alkylbenzenes
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P-271 Terrestrial-derived biomarker
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P-273 Preservation of β-carotane i
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P-275 Aromatic hydrocarbons in oils
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P-277 Statistical analysis of diamo
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P-279 Characterization of biomarker
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P-281 The significance of novel A-n
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P-283 Correlation between compositi
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P-285 Understanding Fluid Inclusion
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P-287 The hydrocarbon occurrence an
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P-289 Correlation of crude oils res
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P-291 Geochemical parameters for un
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P-293 Hydrocarbon biomarkers in the
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P-295 Using diamondoids to unravel
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P-297 Significance of aromatic biom
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P-299 Drilling conditions making we
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P-301 Biomarker distributions and
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P-303 Evaluation of petroleum syste
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P-305 Geochemical indices of hydroc
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P-307 Basin modelling of the Hammer
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P-309 Comparative characteristics o
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P-311 High water pressure induced c
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P-313 Calibration of absolute matur
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P-315 Organic Geochemistry of Lower
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P-317 Laboratory simulation of vert
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P-319 The study of C1-C3 gas genera
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P-321 Hydrocarbon potential of Maik
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P-323 Paleoenvironment significance
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P-325 Origin of abnormal sonic resp
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P-327 Organic geochemistry and orga
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P-329 Characterising the deposition
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P-331 Organic-geochemical character
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P-335 Geochemistry of aqua-bitumoid
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P-337 Application of electrospray i
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P-339 Geochemical characterization
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P-341 Simulation studies on the ads
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P-343 Effective diffusivities of CO
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P-345 Oil Fingerprinting associated
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P-347 Strategies for the assessment
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P-349 Fluid pressure evolution and
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P-351 The releasing of covalently-b
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P-354 Sulfur isotope fractionation
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P-356 Controls on the kinetics of t
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P-358 Sulfur compounds in liquid pr
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P-360 High pressure pyrolysis of hy
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P-362 The reaction of elemental sul
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P-365 Geochemical evaluation of the
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P-367 Geochemical controls on shale
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P-369 Evolution of pores in organic
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P-371 Preliminary investigations in
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P-373 Geochemistry of coalbed metha
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P-375 Integration of basin modeling
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P-377 Oil shales occurring in Mongo
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Thursday Poster Presentations 508
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P-381 Permissible concentration of
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P-383 Accumulation and degradation
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P-385 Source determination and dept
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P-387 The use of phospholipid fatty
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P-389 Biogeochemical process studie
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P-391 Environmental forensics-recen
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P-393 Geochemical characterization
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P-395 Source characterization using
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P-397 Impact of different operating
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P-399 Resolving sources and preserv
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P-402 New insights into soil organi
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P-404 Amino sugars as biomarkers fo
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P-406 Biogeochemistry of lake Soppe
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P-408 Sea surface salinity reconstr
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P-410 Carbon cycling in lacustrine
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P-412 Radiocarbon distributions in
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P-414 European lake sediment calibr
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P-416 Developing analytical protoco
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P-418 Extreme intra- and intermolec
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P-420 � 2 H differences among lip
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P-424 Intact polar lipid and associ
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P-426 Bacterial versus archaeal act
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P-428 Study of microbial activity a
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P-430 New bacteriochlorophyll degra
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P-432 Thermally stable anammox biom
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P-434 Impact of a high CO2 partial
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P-436 Methane oxidation in the wate
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P-438 Lipid biomarkers of archaeal
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P-440 Estimation of endospore numbe
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P-442 Deep-sea benthic archaea recy
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P-444 Isolating and cultivating env
Page 573 and 574: P-446 Distribution of ammonia-oxidi
Page 575 and 576: P-448 Genetic and metabolic charact
Page 577 and 578: P-450 Proxies based on archaeal and
Page 579 and 580: P-453 Experimental palaeochemotaxon
Page 581 and 582: P-455 Long term cooling and punctua
Page 583 and 584: P-457 Molecular and isotopic eviden
Page 585 and 586: P-459 Long-term variations of palae
Page 587 and 588: P-461 Miocene to Pliocene environme
Page 589 and 590: P-463 Holocene paleoclimatic variat
Page 591 and 592: P-465 Hydrological and biogeochemic
Page 593 and 594: P-467 Molecular hydrogen isotope sy
Page 595 and 596: P-469 Impact of anaerobic methane o
Page 597 and 598: P-471 Integrating biomarker and mic
Page 599 and 600: P-473 Application of TEX86-paleothe
Page 601 and 602: P-475 Stable isotopes (C, S) and hy
Page 603 and 604: P-478 The first findings of 12- and
Page 605 and 606: P-480 The 3 P’s* and the Albian o
Page 607 and 608: P-482 Meter-scale oxygen gradients
Page 609 and 610: P-484 Coupling of Miocene-Pliocene
Page 611 and 612: P-486 New molecular marker and spec
Page 613 and 614: P-488 Paleoenvironmental changes fr
Page 615 and 616: P-491 Methoxy-serratenes as discrim
Page 617 and 618: P-493 Vegetation and soil organic m
Page 619 and 620: P-497 Decomposition of wheat straw
Page 621 and 622: P-499 The relationship between peat
Page 623: P-501 Land use and climatic effects
Page 627 and 628: P-505 Organic carbon composition an
Page 629 and 630: P-507 Dynamics of soil organic matt
Page 631 and 632: P-509 Exploiting isotopic, organic,
Page 633 and 634: P-511 The effect of soil moisture o
Page 635 and 636: P-513 Anaerobic oxidation of plant-
Page 637 and 638: P-515 Variability of terrestrially-
Page 639 and 640: Author Index 638
Page 641 and 642: Anselmetti Flavio S. O-63 Ansong Ge
Page 643 and 644: Brinkhuis Henk P-200, P-468 Britton
Page 645 and 646: de Souza Carvalho Ismar P-017 Dedys
Page 647 and 648: Francu Juraj P-037, P-266 Frank Ric
Page 649 and 650: Hart Malcolm O-09 Hartkopf-Fröder
Page 651 and 652: Jin Zhijun P-094 Jingjing Li P-179
Page 653 and 654: Lausmaa Jukka O-58 Lavrieux Marlèn
Page 655 and 656: Marsh Steven P-509 Marshall Chris O
Page 657 and 658: Nemchenko- Rovenskaya Alla P-112 Ne
Page 659 and 660: Radovic Miljana P-152 Ramanathan AL
Page 661 and 662: Schröder Jan P-020, P-029 Schubert
Page 663 and 664: Strelnikova Eugenia P-099 Stuart-Wi
Page 665 and 666: Wakeham Stuart G. O-69 Walters Clif
Page 667 and 668: Zhang Jing P-515 Zhang Jingru P-398
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25th International Meeting on Organic Geochemistry IMOG 2011

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