M. Aoya, Y. Kouketsu, S. Endo, H. Shimizu, T. Mizukami et al., Extending the applicability of the Raman carbonaceous-material geothermometer using data from contact metamorphic rocks, Journal of Metamorphic Geology, vol.14, issue.9, pp.895-914, 2010.
DOI : 10.1111/j.1525-1314.2010.00896.x

C. A. Arnold and L. H. Daugherty, A fossil Dennstaedtioid fern from the Eocene Clarno Formation of Oregon, Contributions from the Museum of Paleontology, University of Michigan, vol.19, pp.65-88, 1964.

S. M. Awramik and E. S. Barghoorn, The Gunflint microbiota, Precambrian Research, vol.5, issue.2, pp.121-142, 1977.
DOI : 10.1016/0301-9268(77)90025-0

V. Beaumont and F. Robert, Nitrogen isotope ratios of kerogens in Precambrian cherts: a record of the evolution of atmosphere chemistry?, Precambrian Research, vol.96, issue.1-2, pp.63-82, 1999.
DOI : 10.1016/S0301-9268(99)00005-4

S. Bernard, O. Beyssac, K. Benzerara, N. Findling, G. Tzvetkov et al., XANES, Raman and XRD study of anthracene-based cokes and saccharose-based chars submitted to high-temperature pyrolysis, Carbon, vol.48, issue.9, pp.2506-2516, 2010.
DOI : 10.1016/j.carbon.2010.03.024
URL : https://hal.archives-ouvertes.fr/hal-00537400

S. Bernard, R. Wirth, A. Schreiber, H. M. Schulz, and B. Horsfield, Formation of nanoporous pyrobitumen residues during maturation of the Barnett Shale (Fort Worth Basin), International Journal of Coal Geology, vol.103, pp.3-11, 2012.
DOI : 10.1016/j.coal.2012.04.010

O. Beyssac, B. Goffe, C. Chopin, R. , and J. N. , Raman spectra of carbonaceous material in metasediments: a new geothermometer, Journal of Metamorphic Geology, vol.30, issue.9, pp.859-871, 2002.
DOI : 10.1046/j.1525-1314.2002.00408.x

L. Bonal, M. Bourot-denise, E. Quirico, G. Montagnac, and E. Lewin, Organic matter and metamorphic history of CO chondrites, Geochimica et Cosmochimica Acta, vol.71, issue.6, pp.1605-1623, 2007.
DOI : 10.1016/j.gca.2006.12.014
URL : https://hal.archives-ouvertes.fr/insu-00359271

J. L. Boulmier, A. Oberlin, J. N. Rouzaud, and M. Villey, Natural organic matters and carbonaceous materials: a preferential field of application for transmission electron microscopy, Scanning Electron Microscopy, pp.1523-1538, 1982.

M. Bourbin, S. Derenne, R. , and F. , Limits in pyrolysis???GC???MS analysis of kerogen isolated from Archean cherts, Organic Geochemistry, vol.52, pp.32-34, 2012.
DOI : 10.1016/j.orggeochem.2012.08.004
URL : https://hal.archives-ouvertes.fr/hal-01195686

M. Bourbin, S. Derenne, D. Gourier, J. N. Rouzaud, P. Gautret et al., Electron Paramagnetic Resonance Study of a Photosynthetic Microbial Mat and Comparison with Archean Cherts, Origins of Life and Evolution of Biospheres, vol.310, issue.78, pp.569-585, 2012.
DOI : 10.1007/s11084-012-9320-3
URL : https://hal.archives-ouvertes.fr/insu-00767794

M. D. Brasier, O. R. Green, A. P. Jephcoat, A. K. Kleppe, M. J. Van-kranendonk et al., Questioning the evidence for Earth's oldest fossils, Nature, vol.27, issue.6876, pp.76-81, 2002.
DOI : 10.1038/416076a

J. J. Brocks, R. Buick, G. A. Logan, and R. E. Summons, Composition and syngeneity of molecular fossils from the 2.78 to 2.45 billion-year-old Mount Bruce Supergroup, Pilbara Craton, Western Australia, Geochimica et Cosmochimica Acta, vol.67, issue.22, pp.4289-4319, 2003.
DOI : 10.1016/S0016-7037(03)00208-4

S. G. Buck, Stromatolite and ooid deposits within the fluvial and lacustrine sediments of the Precambrian Ventersdorp Supergroup of South Africa, Precambrian Research, vol.12, issue.1-4, pp.311-330, 1980.
DOI : 10.1016/0301-9268(80)90033-9

P. R. Buseck and B. J. Huang, Conversion of carbonaceous material to graphite during metamorphism, Geochimica et Cosmochimica Acta, vol.49, issue.10, pp.2003-2016, 1985.
DOI : 10.1016/0016-7037(85)90059-6

H. Busemann, C. M. Alexander, and L. R. Nittler, Characterization of insoluble organic matter in primitive meteorites by microRaman spectroscopy, Meteoritics & Planetary Science, vol.61, issue.2, pp.1387-1416, 2007.
DOI : 10.1111/j.1945-5100.2007.tb00581.x

R. M. Bustin, J. V. Ross, R. , and J. N. , Mechanisms of graphite formation from kerogen: experimental evidence, International Journal of Coal Geology, vol.28, issue.1, pp.1-36, 1995.
DOI : 10.1016/0166-5162(95)00002-U

E. Charon, J. Aleon, R. , and J. N. , Impact delivery of organic matter on the acapulcoite???lodranite parent-body deduced from C, N isotopes and nanostructures of carbon phases in Acapulco and Lodran, Geochimica et Cosmochimica Acta, vol.142, pp.224-239, 2014.
DOI : 10.1016/j.gca.2014.07.009
URL : https://hal.archives-ouvertes.fr/in2p3-01069733

S. Derenne, F. Robert, A. Skrzypczak-bonduelle, D. Gourier, L. Binet et al., Molecular evidence for life in the 3.5??billion year old Warrawoona chert, Earth and Planetary Science Letters, vol.272, issue.1-2, pp.476-480, 2008.
DOI : 10.1016/j.epsl.2008.05.014
URL : https://hal.archives-ouvertes.fr/bioemco-00393716

B. Durand and J. Espitalié, Geochemical studies on the organic matter from the Douala Basin (Cameroon)???II. Evolution of kerogen, Geochimica et Cosmochimica Acta, vol.40, issue.7, pp.801-808, 1976.
DOI : 10.1016/0016-7037(76)90032-6

B. Durand and G. Nicaise, Procedures for kerogen isolation, Kerogen: Insoluble Organic Matter from Sedimentary Rocks, Editions Technip, pp.35-53, 1980.

A. C. Ferrari and J. Robertson, Interpretation of Raman spectra of disordered and amorphous carbon, Physical Review B, vol.61, issue.20, pp.14095-14107, 2000.
DOI : 10.1103/PhysRevB.61.14095

K. L. French, C. Hallmann, J. M. Hope, P. L. Schoon, J. A. Zumberge et al., Reappraisal of hydrocarbon biomarkers in Archean rocks, Proceedings of the National Academy of Sciences, vol.112, issue.19, pp.5915-5920, 2015.
DOI : 10.1073/pnas.1419563112

A. Hofmann, R. Bolhar, B. Orberger, and F. Foucher, CHERTS OF THE BARBERTON GREENSTONE BELT, SOUTH AFRICA: PETROLOGY AND TRACE-ELEMENT GEOCHEMISTRY OF 3.5 TO 3.3 GA OLD SILICIFIED VOLCANICLASTIC SEDIMENTS, South African Journal of Geology, vol.116, issue.2, pp.297-322, 2014.
DOI : 10.2113/gssajg.116.2.297
URL : https://hal.archives-ouvertes.fr/hal-00919075

C. H. House, D. Z. Oehler, K. Sugitani, and K. Mimura, Carbon isotopic analyses of ca. 3.0 Ga microstructures imply planktonic autotrophs inhabited Earth's early oceans, Geology, vol.41, issue.6, pp.651-654, 2013.
DOI : 10.1130/G34055.1

M. Igisu, Y. Ueno, M. Shimojima, S. Nakashima, S. M. Awramik et al., Micro-FTIR spectroscopic signatures of Bacterial lipids in Proterozoic microfossils, Precambrian Research, vol.173, issue.1-4, pp.19-26, 2009.
DOI : 10.1016/j.precamres.2009.03.006

E. J. Javaux, C. P. Marshall, and A. Bekker, Organic-walled microfossils in 3.2-billion-year-old shallow-marine siliciclastic deposits, Nature, vol.427, issue.7283, pp.934-938, 2010.
DOI : 10.1038/nature08793

B. Kremer, Mat-forming coccoid cyanobacteria from early Silurian marine deposits of Sudetes, Poland, Acta Palaeontol Pol, vol.51, pp.143-154, 2006.

B. Kremer and J. Kazmierczak, Cyanobacterial Mats from Silurian Black Radiolarian Cherts: Phototrophic Life at the Edge of Darkness?, Journal of Sedimentary Research, vol.75, issue.5, pp.897-906, 2005.
DOI : 10.2110/jsr.2005.069

B. Kremer, M. Bauer, R. W. Stark, N. Gast, W. Altermann et al., Laser-Raman and atomic force microscopy assessment of the chlorococcalean affinity of problematic microfossils, Journal of Raman Spectroscopy, vol.4, issue.1, pp.32-39
DOI : 10.1002/jrs.2985

A. Lahfid, O. Beyssac, E. Deville, F. Negro, C. Chopin et al., Evolution of the Raman spectrum of carbonaceous material in low-grade metasediments of the Glarus Alps (Switzerland), Terra Nova, vol.14, issue.5, pp.354-360, 2010.
DOI : 10.1111/j.1365-3121.2010.00956.x

K. Lepot, K. H. Williford, T. Ushikubo, K. Sugitani, K. Mimura et al., Texture-specific isotopic compositions in 3.4Gyr old organic matter support selective preservation in cell-like structures, Geochimica et Cosmochimica Acta, vol.112, pp.66-86, 2013.
DOI : 10.1016/j.gca.2013.03.004

J. F. Lindsay, M. D. Brasier, N. Mcloughlin, O. R. Green, M. Fogel et al., The problem of deep carbon???An Archean paradox, Precambrian Research, vol.143, issue.1-4, pp.1-22, 2005.
DOI : 10.1016/j.precamres.2005.09.003

G. P. Lis, A. Schimmelmann, and M. Mastalerz, D/H ratios and hydrogen exchangeability of type-II kerogens with increasing thermal maturity, Organic Geochemistry, vol.37, issue.3, pp.342-353, 2006.
DOI : 10.1016/j.orggeochem.2005.10.006

J. Marin-carbonne, M. Chaussidon, R. , and F. , Micrometer-scale chemical and isotopic criteria (O and Si) on the origin and history of Precambrian cherts: Implications for paleo-temperature reconstructions, Geochimica et Cosmochimica Acta, vol.92, pp.129-147, 2012.
DOI : 10.1016/j.gca.2012.05.040

A. O. Marshall, J. R. Emry, M. , and C. P. , Multiple Generations of Carbon in the Apex Chert and Implications for Preservation of Microfossils, Astrobiology, vol.12, issue.2, pp.160-166, 2012.
DOI : 10.1089/ast.2011.0729

C. P. Marshall, E. J. Javaux, A. H. Knoll, and M. R. Walter, Combined micro-Fourier transform infrared (FTIR) spectroscopy and micro-Raman spectroscopy of Proterozoic acritarchs: A new approach to Palaeobiology, Precambrian Research, vol.138, issue.3-4, pp.208-224, 2005.
DOI : 10.1016/j.precamres.2005.05.006

C. P. Marshall, G. D. Love, C. E. Snape, A. C. Hill, A. C. Allwood et al., Structural characterization of kerogen in 3.4Ga Archaean cherts from the Pilbara Craton, Western Australia, Structural characterization of kerogen in 3.4 Ga Archaean cherts from the Pilbara Craton, Western Australia, pp.1-23, 2007.
DOI : 10.1016/j.precamres.2006.12.014

T. M. Mccollom and J. S. Seewald, Carbon isotope composition of organic compounds produced by abiotic synthesis under hydrothermal conditions, Earth and Planetary Science Letters, vol.243, issue.1-2, pp.74-84, 2006.
DOI : 10.1016/j.epsl.2006.01.027

T. P. Mernagh, R. P. Cooney, J. , and R. A. , Raman spectra of Graphon carbon black, Carbon, vol.22, issue.1, pp.39-42, 1984.
DOI : 10.1016/0008-6223(84)90130-1

S. Mrozowski, ESR studies of carbonization and coalification processes part I: Carbonaceous compounds, Carbon, vol.26, issue.4, pp.521-529, 1988.
DOI : 10.1016/0008-6223(88)90151-0

S. Mrozowski, ESR Studies of carbonization and coalification processes Part II. Biological materials, Carbon, vol.26, issue.4, pp.531-541, 1988.
DOI : 10.1016/0008-6223(88)90152-2

N. Noffke, D. Christian, D. Wacey, and R. M. Hazen, 3.48 Billion-Year-Old Dresser Formation, Pilbara, Western Australia, Astrobiology, vol.13, issue.12, pp.1103-1124, 2013.
DOI : 10.1089/ast.2013.1030

A. Oberlin, Carbonization and graphitization, Carbon, vol.22, issue.6, pp.521-541, 1984.
DOI : 10.1016/0008-6223(84)90086-1

A. Oberlin, High resolution TEM studies of carbonization and graphitization, Chemistry and Physics of Carbon, pp.1-143, 1989.

D. Papineau, D. Gregorio, B. T. Cody, G. D. Fries, M. D. Mojzsis et al., Ancient graphite in the Eoarchean quartz???pyroxene rocks from Akilia in southern West Greenland I: Petrographic and spectroscopic characterization, Geochimica et Cosmochimica Acta, vol.74, issue.20, pp.5862-5883, 2010.
DOI : 10.1016/j.gca.2010.05.025

J. D. Pasteris and B. Wopenka, Necessary, but Not Sufficient: Raman Identification of Disordered Carbon as a Signature of Ancient Life, Astrobiology, vol.3, issue.4, pp.727-738, 2003.
DOI : 10.1089/153110703322736051

C. M. Rice, W. A. Ashcroft, D. J. Batten, A. J. Boyce, J. B. Caulfield et al., A Devonian auriferous hot spring system, Rhynie, Scotland, ) A Devonian auriferous hot-spring system, pp.229-250, 1995.
DOI : 10.1144/gsjgs.152.2.0229

S. Roberts, P. M. Tricker, M. , and J. E. , Raman spectroscopy of chitinozoans as a maturation indicator, Organic Geochemistry, vol.23, issue.3, pp.223-228, 1995.
DOI : 10.1016/0146-6380(94)00126-L

M. Romero-sarmiento, J. Rouzaud, S. Bernard, D. Deldicque, M. Thomas et al., Evolution of Barnett Shale organic carbon structure and nanostructure with increasing maturation, Organic Geochemistry, vol.71, pp.7-16, 2014.
DOI : 10.1016/j.orggeochem.2014.03.008
URL : https://hal.archives-ouvertes.fr/hal-01068539

J. N. Rouzaud and C. Clinard, Quantitative highresolution transmission electron microscopy: a promising tool for carbon materials characterization, Fuel Processing Technology, vol.77, pp.229-235, 2002.

J. N. Rouzaud, D. Deldicque, and B. Velde, Raman microspectrometry study of carbonization processes. First promising application in archaeology [abstract 956, Carbon 2012 Conference Proceedings, 2012.

J. N. Rouzaud, D. Deldicque, E. Charon, and J. Pageot, Carbons at the heart of questions on energy and environment: A nanostructural approach, Comptes Rendus Geoscience, vol.347, issue.3, pp.124-133, 2015.
DOI : 10.1016/j.crte.2015.04.004

A. Sadezky, H. Muckenhuber, H. Grothe, R. Niessner, and U. Poschl, Raman microspectroscopy of soot and related carbonaceous materials: Spectral analysis and structural information, Carbon, vol.43, issue.8, pp.1731-1742, 2005.
DOI : 10.1016/j.carbon.2005.02.018

J. D. Schiffbauer, A. F. Wallace, J. L. Hunter, . Jr, M. Kowalewski et al., Thermally-induced structural and chemical alteration of organic-walled microfossils: an experimental approach to understanding fossil preservation in metasediments, Geobiology, vol.156, issue.662, pp.402-423, 2012.
DOI : 10.1111/j.1472-4669.2012.00332.x

J. W. Schopf and B. M. Packer, Early Archean (3.3-billion to 3.5-billion-year-old) microfossils from Warrawoona Group, Australia, Science, vol.237, issue.4810, pp.70-73, 1987.
DOI : 10.1126/science.11539686

J. W. Schopf, A. B. Kudryavtsev, D. G. Agresti, T. J. Wdowiak, and A. D. Czaja, Laser???Raman imagery of Earth's earliest fossils, Nature, vol.18, issue.6876, pp.73-76, 2002.
DOI : 10.1038/416073a

M. C. Sforna, M. A. Van-zuilen, and P. Philippot, Structural characterization by Raman hyperspectral mapping of organic carbon in the 3.46 billion-year-old Apex chert, Western Australia, Geochimica et Cosmochimica Acta, vol.124, pp.18-33, 2014.
DOI : 10.1016/j.gca.2013.09.031

Z. She, P. Strother, G. Mcmahon, L. R. Nittler, J. Wang et al., Terminal Proterozoic cyanobacterial blooms and phosphogenesis documented by the Doushantuo granular phosphorites I: In situ micro-analysis of textures and composition, Precambrian Research, vol.235, pp.20-35, 2013.
DOI : 10.1016/j.precamres.2013.05.011

H. Sugahara, K. Sugitani, K. Mimura, F. Yamashita, K. Yamamoto et al., A systematic rare-earth elements and yttrium study of Archean cherts at the Mount Goldsworthy greenstone belt in the Pilbara Craton: Implications for the origin of microfossil-bearing black cherts, Precambrian Research, vol.177, issue.1-2, pp.73-87, 2010.
DOI : 10.1016/j.precamres.2009.10.005

K. Sugitani, Y. Horiuchi, M. Adachi, and R. Sugisaki, Anomalously low Al2O3/TiO2 values for Archean cherts from the Pilbara Block, Western Australia???possible evidence for extensive chemical weathering on the early earth, Precambrian Research, vol.80, issue.1-2, pp.49-76, 1996.
DOI : 10.1016/S0301-9268(96)00005-8

K. Sugitani, K. Grey, A. Allwood, T. Nagaoka, K. Mimura et al., Diverse microstructures from Archaean chert from the Mount Goldsworthy???Mount Grant area, Pilbara Craton, Western Australia: Microfossils, dubiofossils, or pseudofossils?, Diverse microstructures from Archaean chert from the Mount Goldsworthy?Mount Grant area, Pilbara Craton, Western Australia: microfossils, dubiofossils, or pseudofossils, pp.228-262, 2007.
DOI : 10.1016/j.precamres.2007.03.006

K. Sugitani, K. Grey, T. Nagaoka, and K. Mimura, m) Spheroidal and Spindle-Like Structures, Astrobiology, vol.9, issue.7, pp.603-615, 2009.
DOI : 10.1089/ast.2008.0268

K. Sugitani, K. Lepot, T. Nagaoka, K. Mimura, M. Van-kranendonk et al., Biogenicity of morphologically diverse carbonaceous microstructures from the ca, the Pilbara Craton, Western Australia, pp.899-920, 2010.

F. Tuinstra and J. L. Koenig, Raman Spectrum of Graphite, The Journal of Chemical Physics, vol.53, issue.3, pp.1126-1130, 1970.
DOI : 10.1063/1.1674108

Y. Ueno, Y. Isozaki, and K. J. Mcnamara, Coccoid-Like Microstructures in a 3.0 Ga Chert from Western Australia, International Geology Review, vol.45, issue.1, pp.78-88, 2006.
DOI : 10.1016/S0301-9268(00)00127-3

M. A. Van-zuilen, A. Lepland, and G. Arrhenius, Reassessing the evidence for the earliest traces of life, Nature, vol.271, issue.6898, pp.627-630, 2002.
DOI : 10.1016/S0016-7037(99)00124-6

M. A. Van-zuilen, A. Lepland, J. Teranes, J. Finarelli, M. Wahlen et al., Graphite and carbonates in the 3.8 Ga old Isua Supracrustal Belt, southern West Greenland, Precambrian Research, vol.126, issue.3-4, pp.331-348, 2003.
DOI : 10.1016/S0301-9268(03)00103-7

M. A. Van-zuilen, M. Chaussidon, C. Rollion-bard, M. , and B. , Carbonaceous cherts of the Barberton Greenstone Belt, South Africa: Isotopic, chemical and structural characteristics of individual microstructures, Geochimica et Cosmochimica Acta, vol.71, issue.3, pp.655-669, 2007.
DOI : 10.1016/j.gca.2006.09.029

M. Vandenbroucke and C. Largeau, Kerogen origin, evolution and structure, Organic Geochemistry, vol.38, issue.5, pp.719-833, 2007.
DOI : 10.1016/j.orggeochem.2007.01.001
URL : https://hal.archives-ouvertes.fr/bioemco-00147220

M. R. Walter, H. J. Hofmann, and J. W. Schopf, Geographic and geologic data for processed rock samples, Earth's Earliest Biosphere, Its Origin and Evolution, pp.385-413, 1983.

F. Westall, C. E. De-ronde, G. Southam, N. Grassineau, M. Colas et al., Implications of a 3.472-3.333 Gyr-old subaerial microbial mat from the Barberton greenstone belt, South Africa for the UV environmental conditions on the early Earth, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.20, issue.1-2, pp.1857-1875, 2006.
DOI : 10.1016/S0301-9268(00)00127-3
URL : https://hal.archives-ouvertes.fr/insu-00619448

F. Westall, B. Cavalazzi, L. Lemelle, Y. Marrocchi, J. N. Rouzaud et al., Implications of in situ calcification for photosynthesis in a ~3.3Ga-old microbial biofilm from the Barberton greenstone belt, South Africa, ) Implications of in situ calcification for photosynthesis in a *3.3 Ga-old microbial biofilm from the Barberton greenstone belt, pp.468-479, 2011.
DOI : 10.1016/j.epsl.2011.08.029
URL : https://hal.archives-ouvertes.fr/insu-00619448

F. Westall, K. A. Campbell, J. G. Bréhéret, F. Foucher, P. Gautret et al., Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context, Geology, vol.43, issue.7, pp.615-618, 2015.
DOI : 10.1130/G36646.1
URL : https://hal.archives-ouvertes.fr/insu-01167397

B. Wopenka and J. D. Pasteris, Structural characterization of kerogens to granulite-facies graphite?applicability of Raman microprobe spectroscopy, Am Mineral, vol.78, pp.533-557, 1993.