Free fatty acids in Lake Aydat catchment soils (French Massif Central): sources, distributions and potential use as sediment biomarkers
| Autor: | Claude Le Milbeau, Jean-Robert Disnar, Renata Zocatelli, Marlène Lavrieux, Jean Gabriel Bréheret, Jérémy Jacob |
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| Přispěvatelé: | Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Transferts continentaux : forçages anthropiques, climatiques et géodynamiques, Institut des Sciences de la Terre d'Orléans (ISTO), Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), ERODE (EC2CO, Centre National de la Recherche Scientifique/Institut National des Sciences de l'Univers) and OTARIE (Région Centre) projects., Université de Tours-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université de Tours-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2012 |
| Předmět: |
[SDE.MCG]Environmental Sciences/Global Changes
Stratigraphy Drainage basin 010502 geochemistry & geophysics 01 natural sciences Grassland Sediments C2FN Organic matter Fatty acids [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment 0105 earth and related environmental sciences Earth-Surface Processes chemistry.chemical_classification geography geography.geographical_feature_category Ecology Fatty acid Sediment 04 agricultural and veterinary sciences 15. Life on land Diagenesis chemistry 13. Climate action Environmental chemistry Soil water 040103 agronomy & agriculture Soils 0401 agriculture forestry and fisheries Composition (visual arts) French Massif Central Biomarkers Geology Conifer |
| Zdroj: | Journal of Soils and Sediments Journal of Soils and Sediments, Springer Verlag, 2012, 12, pp.734-748. ⟨10.1007/s11368-012-0505-1⟩ |
| ISSN: | 1614-7480 1439-0108 |
| Popis: | Eighteen soils were sampled in the Lake Aydat catchment in order to analyse free fatty acid (FA) content; FAs are considered to be among the most amenable biomarkers to mobilisation by runoff waters. The majority of the study area has soil cover consisting of grasslands or forest since the 2nd World War, although some covers having changed more recently. The soil studied all developed on volcanic rocks (andisols). The bulk organic matter (OM) content of the samples was characterized by Rock-Eval (RE) pyrolysis. The FAs were determined by gas chromatography–mass spectrometry (GC-MS) analysis of isolated and derivatized (methylation and trimethylsilylation) FA fractions. Few low molecular weight compounds (LMW; i.e. |
| Databáze: | OpenAIRE |
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