Author: E. Deloule

0000000000671018

AUTHOR

E. Deloule

showing 2 related works from this author

Tracking microbial signatures in stromatolites at micrometer scale with in situ iron isotopes. M-fed (Microbialites: formation, evolution, diagenesis)

2019

International audience

[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/PaleontologyComputingMilieux_MISCELLANEOUS

researchProduct

Iron isotopes in micropyrites from the 2.7Ga Tumbiana Formation (Western Australia)

2019

International audience; Stromatolites are considered to be the major drivers for the oceanic oxygenation during Archean time. However, respective rolesof photosynthetic and chemolithotroph organisms in these Archean rocks is not precisely demonstrated. Primarysub-micrometer pyrites associated with pristine organic matter are widespreadin Archean and modern sediments. Iron isotopes are fractionated by redox processesand biological activitiesand are widely used for tracing paleoredox conditions, diagenetic processes ormetabolic signaturesas iron respiration (DIR). Sub micrometer δ56Fevalues ofmicropyritesassociated with organic matter-laminae and CaCO3-SiO2matrixin stromatolites from the 2.7G…

[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology

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PEPhysical Sciences and Engineering
- PE2Fundamental Constituents of Matter
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LSLife Sciences
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