Results 91 to 100 of about 15,483 (211)
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
doaj +1 more source
Quench Plagioclase from some Archean Basalts
, 1974 Quench plagioclase has been recognized in well preserved Archean submarine basalts from four localities in the superior province of the Canadian Shield. The crystals are skeletal in form with hollow cross sections and swallow tail terminations.
T. H. Pearce
core +1 more source
An archean suture zone in the Tobacco Root Mountains? (1984) Evolution of Archean Continental Crust, SW Montana (1985) [PDF]
, 1985 The Lake Plateau area of the Beartooth Mountains, Montana were mapped and geochemically sampled. The allochthonous nature of the Stillwater Complex was interpreted as a Cordilleran-style continental margin.
Kain, L., Mogk, D. W.
core
Geochemical environments of the Archean-Proterozoic
Доклады Академии наук, 2019 In the Precambrian section, there is a change of Archean calcite carbonate rocks to magnesia and ferrous in the Proterozoic. This is correlated with the massive development of cyanobacteria, the absorption of which carbon dioxide and the generation of oxygen, led to a change in the acidic reduction conditions of Archaean alkaline oxidizing in the ...
openaire +2 more sources
Mid-Archean Idealized Tide Simulations
Dataset that corresponds with the publication "Investigating the behavior of mid-Archean tides and potential implications for biogeochemical cycling" (Crawford et al ...
Crawford, Eliana
core +1 more source
The structural relationship between Archean granite–greenstone terrains and late Archean mafic dikes
, 1978 Examples of Archean shield areas from Canada and Australia are used to demonstrate a consistent orthogonality in trend between late Archean mafic dikes (~2.5 Ga old) and the structure of granite–greenstone terrains whose orogenic history terminated no ...
H. C. Halls
core +1 more source
, 2015 The Ordos Block has been considered as an Archean micro-block in North China Craton. However, its formation and evolution are poorly understood for a long time due to lack of available basement rocks.
A. Kröner (3896959) +9 more
core
, 2003 The Archean western Superior province in Canada is the type area for proposed Archean plate tectonics. Seismic images from this region provide direct evidence for assembly of the craton by terrane accretion and for a large slab of remnant oceanic crust ...
Helmstaedt, H. H. +6 more
core +1 more source
Strongly Peraluminous Granites across the Archean–Proterozoic Transition [PDF]
, 2019 Strongly peraluminous granites (SPGs) form through the partial melting of metasedimentary rocks and therefore represent archives of the influence of assimilation of sedimentary rocks on the petrology and chemistry of igneous rocks.
Bucholz, Claire E. +1 more
core
, 1985 Field, petrographic, and chemical evidence from several areas of the Superior Province suggest that many Archean volcanic successions are bimodal, involving an early tholeiitic basaltic-andesitic magma and a later dacitic-rhyolitic magma.
Verpaelst, P. +5 more
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