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Photoferrotrophs thrive in an Archean ocean analogue.
Precambrian solution photochemistry, inverse segregation, and banded iron formations. U-rich Archaean sea-floor sediments from Greenland-indications of 3700 Ma oxygenic photosynthesis. Nature 396, 450–453 (1998) Spawned the concept of the ‘Canfield’ ocean by developing the idea that the ocean remained anoxic and probably euxinic for a billion years of the mid-Proterozoic, thus highlighting the essential lag between atmospheric and oceanic oxygenation and setting the stage for a generation of research in Precambrian oxygenation. A new model for Proterozoic ocean chemistry. Explaining the structure of the Archean mass-independent sulfur isotope record. A bistable organic-rich atmosphere on the Neoarchaean Earth. The loss of mass-independent fractionation in sulfur due to a Paleoproterozoic collapse of atmospheric methane. Mass-independent fractionation of sulfur isotopes in Archean sediments: strong evidence for an anoxic Archean atmosphere. Science 289, 756–758 (2000) Arguably the ‘smoking gun’ for the GOE-the loss of non-mass-dependent sulphur isotope fractionations-and thus launched a new wave of sulphur studies in Precambrian biogeochemistry and refined our understanding of early oxygenation. Atmospheric influence of Earth’s earliest sulfur cycle. Paleoproterozic icehouses and the evolution of oxygen mediating enzymes: the case for a late origin of Photosystem-II. The rise of oxygen and the hydrogen hourglass. Biogeochemical modelling of the rise in atmospheric oxygen. Science 293, 839–843 (2001) Model exploring the consequences of atmospheric hydrogen escape for the redox budget of the evolving Earth it has become a crucial lynchpin in the examination of Earth’s oxygenation within a planetary context.Ĭlaire, M. Biogenic methane, hydrogen escape, and the irreversible oxidation of early Earth. Increased subaerial volcanism and the rise of atmospheric oxygen 2.5 billion years ago. Atmospheric oxygenation caused by a change in volcanic degassing pressure. A whiff of oxygen before the Great Oxidation Event? Science 317, 1903–1906 (2007) Drew attention to the possibility of oxidative weathering of the continents-well before the GOE recent challenges to the late Archaean organic biomarker record have elevated the value of the study’s inorganic data as likely signatures of pre-GOE oxygenesis. Reassessing the first appearance of eukaryotes and cyanobacteria. Millimeter-scale concentration gradients of hydrocarbons in Archean shales: Live-oil escape or fingerprint of contamination? Geochim. Science 285, 1033–1036 (1999) Essential organic biomarker study that provided the most-cited evidence for the earliest records of oxygen-producing photosynthesis, well before the GOE the integrity of the biomarker data has been challenged in recent years.īrocks, J. Archean molecular fossils and the early rise of eukaryotes. Sulfur isotope evidence for an oxic Archaean atmosphere. Ohmoto, H., Watanabe, Y., Ikemi, H., Poulson, S. The early history of atmospheric oxygen: Homage to Robert M. The oxygenation of the atmosphere and oceans. Acta 66, 3811–3826 (2002) Formalized the notion of the GOE and highlighted the important balance between oxygen production and oxygen-buffering reactions, via reduced volatile compounds, in modulating the prevailing redox state at Earth’s surface. Volcanic gases, black smokers, and the Great Oxidation Event. Huronian rocks and uraniferous conglomerates in the Canadian Shield.
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