ORGANIC GEOCHEMISTRY: TRENDS FOR

THE 21st CENTURY

VOL. 2

Book of Abstracts of the Communications presented to the 26th International Meeting on Organic Geochemistry

Costa Adeje, Tenerife – Spain. September 15 – 20, 2013

Editors:

J.A. González-Pérez, F.J. González-Vila, Nicasio T. Jiménez-Morillo and G. Almendros

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Published on-line in: Digital.CSIC (http://digital.csic.es/), the Institutional Repository of “Consejo Superior de Investigaciones Científicas” (CSIC). © 26th IMOG, Tenerife, Canary Islands. 2013 URI: http://hdl.handle.net/10261/81640

COMMITTEES INVOLVED IN THE ORGANIZATION OF THE 26 IMOG 2013

Scientific Committee

José A. GONZÁLEZ-PÉREZ (Chairman) IRNAS-CSIC, Spain

Gonzalo ALMENDROS

CCMA-CSIC, Spain Rolando di PRIMIO

GFZ (Potsdam, Germany) Paul N. TAYLOR

Shell (Houston, Texas, USA) Ger van GRAAS

Statoil (Oslo, Norway) Matthew FLANNERY

BHP-Billiton (Houston, Texas, USA) Khaled R. AROURI

Saudi Aramco (Dhahran, S. Arabia) Sabine MEHAY

Schlumberger (Dubai, UAE)

Stefan SCHOUTEN NIOZ (Texel, The Netherlands)

Jorge E. SPANGENBERG Univ. Lausanne (Switzerland)

Heike KNICKER IRNAS-CSIC (Sevilla, Spain)

Timothy I. EGLINTON ETH (Zürich, Switzerland)

Marcus ELVERT MARUM (Bremen, Germany)

Bart van DONGEN Univ. Manchester (UK)

Organizing Committee

Francisco J. GONZÁLEZ-VILA (Chairman)

IRNAS-CSIC, Spain

Carmen D. ARBELO RODRÍGUEZ (Secretary)

ULL (Tenerife) Jorge R. NAVARRO COMET

CEPSA (Madrid) Susana TORRESCUSA VILLAVERDE

REPSOL (Madrid) Antonio RIODRÍGUEZ RODRÍGUEZ

ULL (Tenerife) Juan LLAMAS UPM (Madrid)

Albert PERMANYER UB (Barcelona)

José L. RODRÍGUEZ GALLEGO UO (Oviedo)

Gonzalo ALMENDROS MNCN-CSIC (Madrid)

Ángeles BORREGO INCAR-CSIC (Oviedo)

Carmen DORRONSORO UPV (San Sebastián)

José MARÍA de la ROSA IRNAS-CSIC (Sevilla) Gonzalo MÁRQUEZ

UH (Huelva)

EAOG Board

Artur STANKIEWICZ (Chairman) Philippe SCHAEFFER (Secretary)

Pim van BERGEN (Treasurer) Lorenz SCHWARK (Awards)

José A. GONZÁLEZ-PÉREZ (Newsletter) Ian D. BULL (Membership and Website)

James MAXWELL – Co-opted (Editor-in-Chief of Organic Geochemistry)

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26 IMOG SPONSORS

European Association of Organic Geochemists (EAOG) Ministerio de Economía y Competitividad (MINECO)

Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC) Universidad de La Laguna (ULL) Universidad de Barcelona (UB)

Ayuntamiento de Adeje Ayuntamiento de Icod de los Vinos

Repsol Cepsa Disa

Schlumberger BHP Billiton Petrochina

APT Shell

EOG Resources Air Liquide

Conoco Phillips Total

Chevron Petrobras

Statoil Weatherford

Gore IGI

GEOS 4 Thermo Fisher

Bruker

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564. José A. GONZÁLEZ-PÉREZ, Heike KNICKER, Cecilia M. ARMAS, Carmen D. ARBELO, Francisco J. GONÁLEZ-VILA and Antonio RODRÍGUEZ-RODRÍGUEZ. ORGANIC MATTER CHARACTERIZATION IN WHOLE AND DEMINERAIZED ANDOSOLS 566. María LÓPEZ MARTÍN, Anja MILTER and Heike KNICKER. BLACK NITROGEN – AN IMPORTANT FACTOR FOR THE RECOVERY OF FIRE AFFECTED ECOSYSTEMS 568. Deborah PINHEIRO DICK, Graciele SARANTE SANTANA, Heike KNICKER, Francisco JAVIER GONZÁLEZ-VILA and José Antonio GONZÁLEZ PÉREZ. CHEMICAL COMPOSITION OF SOIL ORGANIC MATTER BY ANALYTICAL PYROLYSIS – GC/MS IN FOREST PLANTATIONS 573. Natalia RODRÍGUEZ-EUGENIO, Jose A. GONZÁLEZ-PÉREZ, Carmen D. ARBELO and Antonio RODRÍGUEZ-RODRÍGUEZ. STABILIZATION MECHANISMS OF SOIL ORGANIC MATTER IN HIGH MOUNTAIN VOLCANIC SOILS 574. Nicasio T. JIMÉNEZ-MORILLO, Antonio JORDÁN, Lorena M. ZAVALA, Francisco J. GONZÁLEZ-VILA and José A. GONZÁLEZ-PÉREZ. PYROLYSIS-GC-MS ANALYSIS OF ORGANIC MATTER FRACTIONS CONTROLLING SOIL WATER REPELLENCY 575. Rosa LÓPEZ-GARRIDO, Paula MADEJÓN, Joaquín ALAEJOS, José Manuel MURILLO, Francisco CABRERA and Engracia MADEJÓN. IMPROVEMENT OF SOIL PROPERTIES RELATED TO C CYCLE USING ORGANIC COMPOST AND FAST GROWING TREES 576. Oskars PURMALIS, Maris KLAVINS and Ingrida STRAZDINA. HUMIFICATION IMPACT ON PROPERTIES AND STRUCTURE OF HUMIC ACIDS 577. Oskars PURMALIS, Ingrida STRAZDINA, Inese SILAMIKELE and Maris KLAVINS. DIFFERENTIAL THERMAL ANALYSIS OF PEAT AND PEAT HUMIC ACIDS 578. Qian XUE, Karl LJUNG, Richard D. PANCOST and Richard P. EVERSHED. NITROGEN CYCLING IN THE PEATLANDS: EVIDENCE FROM NITROGEN ISOTOPES AND CONCENTRATIONS OF AMINO ACIDS

SULFUR GEOCHEMISTRY (S) 553 220. Van Phuc NGUYEN, Valérie BURKLE-VITZTHUM, Raymond MICHELS and Paul-Marie MARQUAIRE. PYROLYSIS MECHANISM OF THE N-OCTANE/H2S MIXTURE. CONSTRUCTION AND VALIDATION FROM EXPERIMENTAL RESULTS 237. Shuichang ZHANG, Kun HE, Jin SU and Xiaomei WANG. THE UNIQUE DISTRIBUTION CHARACTERISTICS AND ORIGIN OF H2S AND THIOPHENES IN PALEOZOIC MARINE CONDENSATE GASES FROM THE TARIM BASIN, NW CHINA 245. Yury POLISHCHUKand Irina YASHCHENKO. STUDY OF CHEMICAL COMPOSITION OF HIGH VISCOUS OILS 262. Theodor ALPERMANN and Christian OSTERTAG-HENNING. REACTIVITY OF ORGANO SULFUR COMPOUNDS IN BRINES UNDER PROSPECTIVE GEOLOGIC STORAGE CONDITIONS 429. Alon AMRANI, Guy DROR, Ward SAID-AHMAD, Shimon FEINSTEIN and Itay J. REZNIK. THE DISTRIBUTION AND S ISOTOPE RATIOS OF SPECIFIC ORGANIC SULFUR COMPOUNDS DURING PYROLYSIS OF THERMALLY IMMATURE KEROGEN

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PYROLYSIS-GC-MS ANALYSIS OF ORGANIC MATTER FRACTIONS CONTROLLING SOIL WATER REPELLENCY

Nicasio T.JIMÉNEZ-MORILLO1, Antonio JORDÁN1, Lorena M. ZAVALA1,

Francisco J. GONZÁLEZ-VILA2 and José A. GONZÁLEZ-PÉREZ2*

1. MED_Soil Research Group, Departamento de Cristalografía, Mineralogía y Química Agrícola, Facultad de Química, Universidad de Sevilla, C/Profesor García González, 1,

Sevilla, 41012 (Spain) 2. IRNAS-CSIC. Avda. Reina Mercedes, 10. Sevilla, 41012 (Spain)

*) Corresponding author: jag@irnase.csic.es

Soil water repellency (WR) is a property that reduces affinity for water and therefore

infiltration capacity having a major impact on hydrological, geomorphological and

geochemical soil processes (Jordán et al., 2013). Soil WR is widely observed in different

climatic conditions, soil types and vegetation covers (Doerr et al., 2000). In the Mediterranean

area, evergreen trees such as pines and oaks as well as shrubs are usually associated with the

occurrence of soil WR (Doerr et al., 2000).

Soil WR is conditioned by different biotic and abiotic variables. It has been usually

related with soil organic matter (SOM) content (DeBano, 2000; Doerr et al., 2000; Mataix-

Solera et al., 2013; Zavala, 2014). However this relationship could be due to specific

compounds within the SOM pool. The origin of natural WR has been attributed to organic

compounds released from different plant species and sources (resins, waxes and other organic

substances; Rumpel et al., 2004). In fact, soil lipids released by plants or microorganisms play

a relevant role on the development of WR (Lozano et al., 2013).

This paper attempts to enlighten the relationship between soil WR, SOM content and

the possible effects of the relative abundance and molecular assemblage of specific

hydrophobic substances (n-alkane/alkene pairs and n-alkanoic acids) present in SOM.

Soil samples (0-10 mm depth) were collected in Doñana National Park (Huelva, SW

Spain) under four different vegetation types dominated by: Quercus suber (QS), Pteridium

aquilinum (PA), Pinus pinea (PP) and Halimium halimifolium (HH). Soil samples were

divided in different aggregate sieve fractions (1-2, 0.25-1, 0.05-0.25 and <0.05 mm), SOM

measured and each sieve fractions studied by pyrolysis gas chromatography mass

spectrometry (Py-GC/MS).

A positive exponential correlation was found between SOM and WR as measured by

the water drop penetration test (WDPT). The effect of SOM on WR was particularly evident

in all sizes fractions QS sample and the smaller sieve fractions (<0.05mm) in all samples

(Figure 1).

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Figure 1.Organic matter content vs. soil water repellency (Log10(WDPT+10)).

Long chain fatty acids released by pyrolysis seem to be related to soil the water

repellency observed in the soil sieve fractions; these appear in all water-repellent sieve

fractions under different vegetation types while not present in wettable or critically water-

repellent (0.25-1 and 0.05-0.25 mm sieve fractions from soil samples under HH; Table 1).

PA and PP samples show a similar degree of water repellency, having also similar

long-chain fatty acids and alkane patterns (CPI-L). This may be explained by the presence of

inherited organic matter from PP in soils under PA, or inputs either by wind or runoff water.

Table 1. Soil water repellency (mean WDPT, seconds), organic matter content (OM, %), n-alkane long-chain carbon preference index (CPI-L), n-alkane average chain length (ACL), and number of long-chain fatty acids (LC-FAP). Size fractions: 1 (1-2 mm), 2 (0.25-1 mm); 3 (0.05-0.25 mm), 4 (<0.05 mm).

Vegetation type QS PA PP HH

Sieve fraction 1 2 3 4 1 3 4 1 3 4 1 2 3 4

Mean WDPT 619 1692 1800 852 480 278 656 350 33 471 41 6 0 278

OM 35 26.8 37.2 46.9 6.2 17 27.4 2.9 7.3 21 3.4 2 3.7 25

CPI-L 1.5 1.3 1.3 1.4 1.6 1.3 1.4 2 1.3 1.4 1.4 1.9 1.1 1.2

ACL 19.3 18.5 18.6 18.2 17.3 16.7 16.6 16.5 17.1 16.4 19 17 18.1 18

LC-FAP 1 2 3 1 3 2 1 5 1 1 2 0 0 0

REFERENCES: DeBano. J. Hydrol. 231–232: 4–32 (2000) Doerr et al., Earth-Sci. Rev. 51, 33–65 (2000) Jordán et al. Catena 108: 1–8 (2013) Lozano et al., Geoderma 207-208: 212-220 (2013) Mataix-Solera et al. Catena 108: 9-16 (2013) Rumpel et al.,J. Plant Nutrition and Soil Sci (2004) Zavala. Flamma 5: 96–102 (2014)

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