[HTML][HTML] The Paleoproterozoic fossil record: implications for the evolution of the biosphere during Earth's middle-age
EJ Javaux, K Lepot - Earth-Science Reviews, 2018 - Elsevier
Abstract The Paleoproterozoic (2.5–1.6 Ga) Era is a decisive time in Earth and life history.
The paleobiological record (microfossils, stromatolites, biomarkers and isotopes) illustrates …
The paleobiological record (microfossils, stromatolites, biomarkers and isotopes) illustrates …
The link between biomineralization and fossilization of bacteria: insights from field and experimental studies
Fossil biominerals and fossils of microorganisms in ancient rocks contain important
biogeochemical signals. Decoding this record may reveal crucial information about the …
biogeochemical signals. Decoding this record may reveal crucial information about the …
[HTML][HTML] A defect-driven metal-free electrocatalyst for oxygen reduction in acidic electrolyte
Newly NSC coordination-structured active sites, originating from the integrity of edged
thiophene S, graphitic N, and pentagon defects, were reconstructed by N-modified S defects …
thiophene S, graphitic N, and pentagon defects, were reconstructed by N-modified S defects …
Nitrogen and Sulfur Vacancies in Carbon Shell to Tune Charge Distribution of Co6Ni3S8 Core and Boost Sodium Storage
Recently, the metal sulfide‐carbon nanocomposites have been suggested as a low‐cost
alternative to lithium ion batteries, but commercial application is seriously hindered by their …
alternative to lithium ion batteries, but commercial application is seriously hindered by their …
Cellular remains in a~ 3.42-billion-year-old subseafloor hydrothermal environment
Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …
Self-assembly of biomorphic carbon/sulfur microstructures in sulfidic environments
J Cosmidis, AS Templeton - Nature Communications, 2016 - nature.com
In natural and laboratory-based environments experiencing sustained counter fluxes of
sulfide and oxidants, elemental sulfur (S0)—a key intermediate in the sulfur cycle—can …
sulfide and oxidants, elemental sulfur (S0)—a key intermediate in the sulfur cycle—can …
Taphonomy of very ancient microfossils from the∼ 3400 Ma Strelley Pool Formation and∼ 1900 Ma Gunflint Formation: New insights using a focused ion beam
Focused ion beam (FIB) milling permits the accurate extraction of ultrathin (c. 100nm) cross
sectional lamellae from microfossils found in geological thin sections. Subsequent TEM …
sectional lamellae from microfossils found in geological thin sections. Subsequent TEM …
Implications of in situ calcification for photosynthesis in a~ 3.3 Ga-old microbial biofilm from the Barberton greenstone belt, South Africa
Timing the appearance of photosynthetic microorganisms is crucial to understanding the
evolution of life on Earth. The ability of the biosphere to use sunlight as a source of energy …
evolution of life on Earth. The ability of the biosphere to use sunlight as a source of energy …
Filamentous sulfur bacteria preserved in modern and ancient phosphatic sediments: implications for the role of oxygen and bacteria in phosphogenesis
Marine phosphate‐rich sedimentary deposits (phosphorites) are important geological
reservoirs for the biologically essential nutrient phosphorous. Phosphorites first appear in …
reservoirs for the biologically essential nutrient phosphorous. Phosphorites first appear in …
Going nano: a new step toward understanding the processes governing freshwater ooid formation
Marine and freshwater ooids were historically thought to form by purely physicochemical
processes in turbulent environments. Recently, organomineralization has been identified as …
processes in turbulent environments. Recently, organomineralization has been identified as …