Evidence for life on Earth before 3,800 million years ago

References

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	Year	Citations
Geochemistry of hydrothermal ore deposits Choice Reviews Online EngineeringGeologyHydrothermal Ore DepositsGeochemistryEarth Science	1997	3.9K
Why Nature Chose Phosphates F. H. Westheimer Science BiologyPhosphoric AcidPhosphate EstersBioorganic ChemistryEngineering	1987	1.7K
Microfossils of the Early Archean Apex Chert: New Evidence of the Antiquity of Life J. William Schopf Science	1993	1.3K
A 3,800-million-year isotopic record of life from carbon in sedimentary rocks Manfred Schidlowski Nature Sedimentary RecordCarbon SequestrationEngineeringIsotope GeochemistrySedimentary Rocks	1988	816
Sedimentary facies of iron-formation Harold L. James Economic Geology Organic GeochemistryFacies AnalysisEngineeringSedimentary GeologyLake Superior Region	1954	661
Earth's Earliest Biosphere Gonzalo Vidal Lethaia BiosignatureEngineeringHistory Of GeologyBiosphere-atmosphere InteractionsEarliest Biosphere	1985	594
The Itsaq Gneiss Complex of southern West Greenland; the world's most extensive record of early crustal evolution (3900-3600 Ma) Allen P. Nutman, V. R. McGregor, C. R. L. Friend, Precambrian Research Southern West GreenlandItsaq Gneiss ComplexEngineeringPrecambrian GeologyExtensive Record	1996	479
Carbon, hydrogen and nitrogen in carbonaceous chondrites: Abundances and isotopic compositions in bulk samples J. F. Kerridge Geochimica et Cosmochimica Acta Isotopic CompositionsEngineeringIsotope GeochemistryBulk SamplesMarine Chemistry	1985	422
Oxygen and carbon isotope fractionations between CO2 and calcite Thomas Chacko, T. K. Mayeda, Robert N. Clayton, Geochimica et Cosmochimica Acta Organic GeochemistryBiogeochemistryCarbon SequestrationEngineeringCarbon Isotope Fractionations	1991	379
Chemistry, petrology and origin of banded iron-formation lithologies from the 3800 MA isua supracrustal belt, West Greenland R. F. Dymek, Cornelis Klein Precambrian Research EngineeringBanded Iron-formation LithologiesIgneous PetrogenesisGeologyCrustal Melting	1988	354

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