25th International Meeting on Organic Geochemistry IMOG 2011

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P-466 Can molecular markers for pyrogenic carbon help to reconstruct wildfire temperatures? Maximilian P.W. Schneider 1 , William C. Hockaday 2 , Caroline A. Masiello 2 , Michael W.I. Schmidt 1 1 University of Zurich, Department of Geography, Zurich, Switzerland, 2 Rice University, Department of Earth Science, Houston, United States of America (corresponding author:maximilian.schneider@geo.uzh.ch) The maximum temperature experienced by charcoals strongly influences relevant properties, such as surface area (Brown et al., 2006), sorption capacity (Chen et al., 2008) and degradability (Bruun et al., 2008; Zimmerman, 2010). Yet information about the temperature during formation of natural charcoals in the environment is difficult to obtain. Benzenepolycarboxylic acids (BPCA) are molecular markers specific for pyrogenic carbon (PyC) and are used to quantify PyC in soils, sediments and oceans (Hammes et al., 2008; Dittmar & Paeng, 2009). Additionally to quantitative information, the concentration of one of the marker molecules, B6CA (mellitic acid), provides information on the degree of aromatic condensation in charcoals and probably, also the intensity of the heat treatment during the pyrolysis process (Schneider et al., 2010). We calibrated this ―molecular thermometer‖ by using a thermosequence of charcoals (200 to 1000°C), produced under N2 atmosphere from two different types of biomass (grass and wood) in a tube furnace (Schneider et al., 2011). So far it is not clear how other factors during pyrolysis, such as availability of oxygen, moisture and exposition time, influence the resulting molecular marker pattern. Here we apply the molecular marker method to a set of 10 charcoals produced during a controlled burn experiment, which was conducted at the US Forest Service Silas Little Experimental Forest, located near New Lisbon, New Jersey. The charred samples were derived from litter and bark of pitch pine (Pinus rigida) and inkberry (Ilex glabra) plants. Thermo-sensitive paints were used to keep record of the upper temperature range that a sample experienced during the fire event. Maximum temperatures of 260 to 650°C were monitored, which are typical temperatures for wildfires and which is well within the calibrated temperature range of the thermosequence charcoals. We compare the estimated formation temperatures derived from molecular marker patterns with those measured by the thermo-sensitive paints. Our results show if the ―molecular thermometer‖ can be used to estimate the formation temperature of natural charcoals. References Brown, R.A., Kercher, A.K., Nguyen, T.H., Nagle, D.C., Ball, W.P., 2006. Production and characterization of synthetic wood chars for use as surrogates for natural sorbents. Organic Geochemistry 37, 321-333. Bruun, S., Jensen, E.S., Jensen, L.S., 2008. Microbial mineralization and assimilation of black carbon: Dependency on degree of thermal alteration. Organic Geochemistry 39, 839-845. Chen, B.L., Zhou, D.D., Zhu, L.Z., 2008. Transitional adsorption and partition of nonpolar and polar aromatic contaminants by biochars of pine needles with different pyrolytic temperatures. Environmental Science & Technology 42, 5137-5143. Dittmar, T., Paeng, J., 2009. A heat-induced molecular signature in marine dissolved organic matter. Nature Geoscience 2, 175-179. Hammes, K., Torn, M.S., Lapenas, A.G., Schmidt, M.W.I., 2008. Centennial black carbon turnover observed in a Russian steppe soil. Biogeosciences 5, 1339-1350. Schneider, M.P.W., Hilf, M., Vogt, U.F., Schmidt, M.W.I., 2010. The benzene polycarboxylic acid (BPCA) pattern of wood pyrolyzed between 200 °C and 1000 °C. Organic Geochemistry 41, 1082-1088. Schneider, M.P.W., Smittenberg, R.H., Dittmar, T., Schmidt, M.W.I., 2011. Comparison of gas with liquid chromatography for the determination of benzenepolycarboxylic acids as molecular tracers of black carbon. Organic Geochemistry (in press). Zimmerman, A.R., 2010. Abiotic and microbial oxidation of laboratory-produced black carbon (biochar). Environmental Science & Technology 44, 1295-1301. 591
P-467 Molecular hydrogen isotope systematics in Eocene lake sediments: Hydrogen isotope exchange and estimate of paleo lake water hydrogen isotope composition Nils Andersen 1,2 , Stefano M. Bernasconi 1 , Robert M. K. Carlson 3 , Martin Schoell 4 1 ETH Zurich, Geologisches Institut, Zurich, Switzerland, 2 University of Kiel, Radiocarbon Laboratory, Kiel, Germany, 3 Chevron Research And Technology Co., Richmond, United States of America, 4 GasConsult <strong>International</strong> Inc., Berkeley, United States of America (corresponding author:mschoell@gas-consult.com) Hydrogen isotopic signatures in individual compounds (n-alkanes, isoprenoids, steranes and carotenoids) are reported for products of the Eocene Green River shale and exhibit variations in �D between -135 and - 296‰ VSMOW. The �D values of n-alkanes and isoprenoids are consistent with a primary biosynthetic origin. However, formerly poly-unsaturated carotenoids, perhydro-�-carotene and lexane, are strongly depleted in deuterium, both in the immature gilsonite and a more mature oil. This suggests that during early diagenesis, the biological precursor carotenoids become saturated with hydrogen from an external, non-biological source with estimated �D values of about –600‰. Using the primary biosynthetic-derived D-concentrations of steranes, nalkanes and isoprenoids and applying known �DH20 fractionations between water and organic compounds, results in a narrow range of estimates of the Dconcentration of lake water of 0-20 ‰. This enrichment in deuterium is consistent with an arid lake environment similar to today's desert lakes in California and other parts of the world. 592
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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
Page 485 and 486:
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
Page 497 and 498:
P-367 Geochemical controls on shale
Page 499 and 500:
P-369 Evolution of pores in organic
Page 501 and 502:
P-371 Preliminary investigations in
Page 503 and 504:
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
Page 519 and 520:
P-389 Biogeochemical process studie
Page 521 and 522:
P-391 Environmental forensics-recen
Page 523 and 524:
P-393 Geochemical characterization
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P-395 Source characterization using
Page 527 and 528:
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
Page 533 and 534:
P-404 Amino sugars as biomarkers fo
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P-406 Biogeochemistry of lake Soppe
Page 537 and 538:
P-408 Sea surface salinity reconstr
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P-410 Carbon cycling in lacustrine
Page 541 and 542: P-412 Radiocarbon distributions in
Page 543 and 544: P-414 European lake sediment calibr
Page 545 and 546: P-416 Developing analytical protoco
Page 547 and 548: P-418 Extreme intra- and intermolec
Page 549 and 550: P-420 � 2 H differences among lip
Page 551 and 552: P-424 Intact polar lipid and associ
Page 553 and 554: P-426 Bacterial versus archaeal act
Page 555 and 556: P-428 Study of microbial activity a
Page 557 and 558: P-430 New bacteriochlorophyll degra
Page 559 and 560: P-432 Thermally stable anammox biom
Page 561 and 562: P-434 Impact of a high CO2 partial
Page 563 and 564: P-436 Methane oxidation in the wate
Page 565 and 566: P-438 Lipid biomarkers of archaeal
Page 567 and 568: P-440 Estimation of endospore numbe
Page 569 and 570: P-442 Deep-sea benthic archaea recy
Page 571 and 572: 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: P-465 Hydrological and biogeochemic
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 and 624: P-501 Land use and climatic effects
Page 625 and 626: P-503 Geochemical characterization
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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