Pr

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Earth Science Institute of Orleans, France UMR
6531 of CNRS - University of Orléans Group
 Organic Matter in water, sols, sediments and
rocks   Personal involved in RECIPE Fatima
Laggoun Laure Comont (PhD student) Jean-Robert
Disnar Patrick Albéric (DOC, water
chemistry) Christian Défarge (µmorphology -
cryo-SEM) Nathalie Lottier (GC-MS / Capillary
eletrophoresis) Marielle Hatton (C, N, S
palynofacies preparation)
Charquemont, Recipe meeting 23-27th Oct
2003
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Appointment of staff and students to RECIPE
relevant problems
? Oct. 2001 to Nov. 2002 a PhD student A. Fleury
(2 Jura sites)
? Application for many calls (i) PhD grants from
public Dpts, (ii) Marie Curie post-doc grant (6th
Framework Prog.)
? Oct. 1st 2003 Laure Comont 3 years PhD grant
from Research Dpt of Local Adminitr. District
(Region Centre)
? Eval. MC grant C. Applicant Martin Kainz,
Univ Victoria, Canada. Project Biomolecular
source identification of OM in peatland
ecosystems (lipid biomarkers, i.e. fatty acid
methyl esters)
? Philipp Steinmann invited staff at ISTO in the
framework of RECIPE (1 month (April or May 2004)
fund from Univ Orleans). Project (i) porewater
sampling by peepers isotopic analyses of CO2,
CH4 and acetates (ii) Archaea biomarkers .
Charquemont, Recipe meeting 23-27th Oct
2003
3

• Analysis progress
• Sampling on Oct. 2001
• 2 sites in the Jura
• Le Russey (France) 5 cores (70 Samples)
• La Chaux dAbel (Switzerland) 6 cores (91
  Samples)

• Analyses
• CNS analyses, identification counting of
  organic fragments, counting of bacteria, sugar
  analyses of peat samples and vegetation (8
  sphagnum sp., 1 polytrichum, 2 Erioph. sp.).

• Participation to congresses
• 9th Congress of Sedimentology (Oct., 14-16th
  2003, Bordeaux)
• 7th Meeting of Soil Study (Oct., 22-24th 2002,
  Orleans)

Charquemont, Recipe meeting 23-27th Oct
2003
4
Sampling in la Chaux dAbel
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C/N ratios and microscopic counting
Chaux dAbel/fen (minetrophic zone)-Newly
restaured
CA.1 Sphagnum Polytrichum
CA.2 Sphagnum Eriophorum
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C/N ratios and microscopic counting
Chaux dAbel/bog (ombrotrophic zone) Newly
restaured
CA.5 Sphagnum Polytrichum
CA.4 Sphagnum Eriophorum
Charquemont, Recipe meeting 23-27th Oct
2003
10
C/N ratios and microscopic counting
Chaux dAbel Intact zone (CA 6)
Charquemont, Recipe meeting 23-27th Oct
2003
11
C/N ratios and microscopic counting (Le Russey)
Ry.B no regeneration ?
Ry.D more advanced stage
Regeneration ?
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C/N ratios and microscopic counting (Le Russey)
Ry.I Intact peat
Regeneration
Charquemont, Recipe meeting 23-27th Oct
2003
13
vegetation
Biomarkers of organic sources(sugar analyses)
Charquemont, Recipe meeting 23-27th Oct
2003
14
La Chaux dAbel / bog - exploited zone
sugar analyses
Charquemont, Recipe meeting 23-27th Oct
2003
15
La Chaux dAbel / INTACT ZONE
sugar analyses
Charquemont, Recipe meeting 23-27th Oct
2003
16
bacteria counting
Observations x1000 en épifluorescence
Charquemont, Recipe meeting 23-27th Oct
2003
17
bacteria counting (La chaux dAbel)
Taille échantillon de départ
Concentration en bactéries/g de tourbe fraîche
BIOMASSE Carbone
Biovolume
CA 5
CA 6
Charquemont, Recipe meeting 23-27th Oct
2003
18
Bacteria counting (Le Russey)
Ry.B Exploited zone
Charquemont, Recipe meeting 23-27th Oct
2003
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Bacteria counting (Le Russey)
Ry.D Exploited zone
Regeneration
Transition (C/N, OF)

Charquemont, Recipe meeting 23-27th Oct
2003
20
Bacteria counting (Le Russey)
Ry.I Intact zone
Regeneration
Charquemont, Recipe meeting 23-27th Oct
2003
21
Replicates ? (Ry A B less advanced
regeneration stage)
Charquemont, Recipe meeting 23-27th Oct
2003