Results 91 to 100 of about 17,614 (181)
, 2006 Biomarkers of hydrothermally altered, late Archean metasediments from the Abitibi subprovince ...
Gregory T. Ventura (7971881)
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Геодинамика и тектонофизика, 2017 The Siberian craton consists of Archean blocks, which were welded up into the same large unit by ca 1.9 Ga [Gladkochub et al., 2006; Rojas-Agramonte et al., 2011].
A. V. Ivanov +4 more
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Tectonics on Early Earth Driven by Earth's Changing Shape During Tidal Recession of the Moon
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.Abstract Few fragments of Earth's earliest crust have survived, and so this formative period of our planet's history is shrouded in mystery. To leverage the limited data available, it is important to understand all the processes that could have shaped our young planet.
S. J. Lock
wiley +1 more source
The Archean crust in the Wawa-Chapleau-Timmins region. A field guidebook prepared for the 1983 Archean Geochemistry-Early Crustal Genesis Field Conference [PDF]
, 1983 This guidebook describes the characteristics and interrelationships of Archean greenstone-granite and high-grade gneiss terrains of the Superior Province.
Percival, J. A. +4 more
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Marine Phosphate Level During the Archean Constrained by the Global Redox Budget
Geophysical Research LettersUnderstanding the oceanic phosphate concentration is critical for understanding marine productivity and oxygen evolution throughout Earth history. During the Archean, estimates of marine phosphate levels range from scarce to enriched conditions. However,
Yasuto Watanabe +2 more
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Environmental Microbiology, Volume 28, Issue 11, November 2026.Mode of methanogenesis and sulphur source affected cobalt (availability and biosynthetic demand in cultures of Methanosarcina barkeri Fusaro and Methanococcus maripaludis S2. Both strains reductively dissolved cobaltoan pyrite, (Co,Fe)S2, as a source of iron, Co and sulphur and assimilated the mobilized Co as cobalamide cofactors.
Hunter Dulay +5 more
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Journal of Metamorphic Geology, Volume 44, Issue 9, Page 665-682, November 2026.ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges +5 more
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Rapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Kunmanee Bubphamanee +2 more
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Lower crustal flow kept Archean continental flood basalts at sea level
, 2011 International audienceLarge basaltic provinces as much as 15 km thick are common in Archean cratons. Many of these flood basalts erupted through continental crust but remained at sea level.
Dromart, Gilles +9 more
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Non‐enzymatic glycolysis and pentose phosphate pathway‐like reactions in a plausible Archean ocean
Molecular Systems Biology, 2014 The reaction sequences of central metabolism, glycolysis and the pentose phosphate pathway provide essential precursors for nucleic acids, amino acids and lipids. However, their evolutionary origins are not yet understood.
Markus A Keller +2 more
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