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A small marine biosphere in the Proterozoic 期刊论文
, 2019, 卷号: 17, 期号: 2
作者:  Laakso T.A.;  Schrag D.P.
收藏  |  浏览/下载:21/0  |  提交时间:2020/07/28
biosphere  estuarine environment  marine environment  net primary production  nutrient cycling  nutrient limitation  organic matter  primary production  Proterozoic  recycling  surface water  water column  oxygen  phosphorus  sea water  aquatic species  biota  chemistry  estuary  photosynthesis  physiology  river  Aquatic Organisms  Biota  Estuaries  Oxygen  Phosphorus  Photosynthesis  Rivers  Seawater  
Environmental controls on bacteriohopanepolyol profiles of benthic microbial mats from Lake Fryxell, Antarctica 期刊论文
, 2019, 卷号: 17, 期号: 5
作者:  Matys E.D.;  Mackey T.;  Grettenberger C.;  Mueller E.;  Jungblut A.;  Sumner D.Y.;  Hawes I.;  Summons R.E.
收藏  |  浏览/下载:21/0  |  提交时间:2020/07/28
ammonium compound  benthos  biomarker  environmental conditions  geological record  lipid  marine environment  microbial mat  nitrogen cycle  oxidation  reconstruction  relative abundance  Antarctica  East Antarctica  Lake Fryxell  McMurdo Dry Valleys  lipid  pentacyclic triterpene  polymer  polyol  Antarctica  bacterial phenomena and functions  bacterium  chemistry  lake  metabolism  sediment  Antarctic Regions  Bacteria  Bacterial Physiological Phenomena  Geologic Sediments  Lakes  Lipids  Pentacyclic Triterpenes  Polymers  
A freshwater analog for the production of Epiphyton-like microfossils 期刊论文
, 2019, 卷号: 17, 期号: 5
作者:  Ibarra Y.;  Sanon S.
收藏  |  浏览/下载:23/0  |  提交时间:2020/07/28
biofilm  calcification  calcite  carbonate  cyanobacterium  diagenesis  epiphyte  green alga  limestone  marine environment  microfossil  mineralization  polymer  spring (hydrology)  taphonomy  algae  Chlorophyta  Myxus capensis  calcium carbonate  fresh water  anatomy and histology  chemistry  classification  cyanobacterium  cytology  Desmidiales  fossil  sediment  Calcium Carbonate  Cyanobacteria  Desmidiales  Fossils  Fresh Water  Geologic Sediments  
A paleosol record of the evolution of Cr redox cycling and evidence for an increase in atmospheric oxygen during the Neoproterozoic 期刊论文
, 2019, 卷号: 17, 期号: 6
作者:  Colwyn D.A.;  Sheldon N.D.;  Maynard J.B.;  Gaines R.;  Hofmann A.;  Wang X.;  Gueguen B.;  Asael D.;  Reinhard C.T.;  Planavsky N.J.
收藏  |  浏览/下载:27/0  |  提交时间:2020/07/28
Archean  chemical weathering  chromium  heterocyclic oxygen compound  oxygen  oxygenation  paleosol  Proterozoic  redox conditions  terrestrial environment  chromium  oxygen  atmosphere  chemistry  Ontario  oxidation reduction reaction  paleontology  soil  South Africa  United States  Atmosphere  Chromium Isotopes  Ontario  Oxidation-Reduction  Oxygen  Paleontology  Soil  South Africa  United States  
Critically testing olivine-hosted putative martian biosignatures in the Yamato 000593 meteorite—Geobiological implications 期刊论文
, 2019, 卷号: 17, 期号: 6
作者:  McLoughlin N.;  Grosch E.G.;  Vullum P.E.;  Guagliardo P.;  Saunders M.;  Wacey D.
收藏  |  浏览/下载:29/0  |  提交时间:2020/07/28
crater  crystal structure  Earth  fluid-structure interaction  fracture  hydrothermal fluid  Mars  Martian atmosphere  meteorite  olivine  seafloor  serpentinization  testing method  ultramafic rock  volcanic rock  iron derivative  magnesium derivative  olivine  silicate  astrobiology  astronomy  chemistry  space  Exobiology  Extraterrestrial Environment  Iron Compounds  Magnesium Compounds  Mars  Meteoroids  Silicates  
Heterogeneity and incorporation of chromium isotopes in recent marine molluscs (Mytilus) 期刊论文
, 2019, 卷号: 17, 期号: 4
作者:  Bruggmann S.;  Klaebe R.M.;  Paulukat C.;  Frei R.
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/28
biomineralization  carbonate  chromium  concentration (composition)  isotopic fractionation  marine environment  mollusc  paleoenvironment  reconstruction  redox conditions  seawater  shell  stable isotope  Mollusca  Mytilus  Mytilus edulis  
An investigation into the effects of increasing salinity on photosynthesis in freshwater unicellular cyanobacteria during the late Archaean 期刊论文
, 2019, 卷号: 17, 期号: 4
作者:  Herrmann A.J.;  Gehringer M.M.
收藏  |  浏览/下载:15/0  |  提交时间:2020/07/28
Archean  bacterium  chlorophyll a  cyanobacterium  environmental conditions  freshwater ecosystem  growth rate  marine environment  molecular ecology  photosynthesis  pigment  salinity  salinity tolerance  Chroococcidiopsis thermalis  Cyanobacteria  Gloeobacter  Gloeobacter violaceus  fresh water  cyanobacterium  evolution  metabolism  paleontology  photosynthesis  salinity  salt tolerance  species difference  Biological Evolution  Cyanobacteria  Fresh Water  Paleontology  Photosynthesis  Salinity  Salt Tolerance  Species Specificity  
Absence of biomarker evidence for early eukaryotic life from the Mesoproterozoic Roper Group: Searching across a marine redox gradient in mid-Proterozoic habitability 期刊论文
, 2019, 卷号: 17, 期号: 3
作者:  Nguyen K.;  Love G.D.;  Zumberge J.A.;  Kelly A.E.;  Owens J.D.;  Rohrssen M.K.;  Bates S.M.;  Cai C.;  Lyons T.W.
收藏  |  浏览/下载:20/0  |  提交时间:2020/07/28
biomarker  carbon isotope  carbonate  environmental gradient  environmental indicator  eukaryote  fossil record  geochemistry  historical record  marine environment  metamorphism  open ocean  paleoenvironment  Proterozoic  redox conditions  speciation (chemistry)  Australia  McArthur Basin  Bacteria (microorganisms)  Eukaryota  biological marker  sea water  chemistry  eukaryote  fossil  metabolism  Northern Territory  oxidation reduction reaction  sediment  Biomarkers  Eukaryota  Fossils  Geologic Sediments  Northern Territory  Oxidation-Reduction  Seawater  
Microbial assemblage and palaeoenvironmental reconstruction of the 1.38 Ga Velkerri Formation, McArthur Basin, northern Australia 期刊论文
, 2019, 卷号: 17, 期号: 4
作者:  Jarrett A.J.M.;  Cox G.M.;  Brocks J.J.;  Grosjean E.;  Boreham C.J.;  Edwards D.S.
收藏  |  浏览/下载:14/0  |  提交时间:2020/07/28
anoxic conditions  bacterium  biomarker  eukaryote  euxinic environment  hydrocarbon  microbial community  microfossil  paleoenvironment  photic zone  Proterozoic  reconstruction  redox conditions  reworking  sediment-water interface  species diversity  trace metal  Australia  McArthur Basin  Eukaryota  environmental marker  hydrocarbon  environment  fossil  microbiology  microflora  Northern Territory  sediment  Environment  Environmental Biomarkers  Fossils  Geologic Sediments  Hydrocarbons  Microbiota  Northern Territory  
Phylogenetic diversity in freshwater-dwelling Isochrysidales haptophytes with implications for alkenone production 期刊论文
, 2019, 卷号: 17, 期号: 3
作者:  Richter N.;  Longo W.M.;  George S.;  Shipunova A.;  Huang Y.;  Amaral-Zettler L.
收藏  |  浏览/下载:24/0  |  提交时间:2020/07/28
alkenone  eukaryote  genetic variation  lacustrine environment  marine environment  open ocean  paleotemperature  phylogenetics  species diversity  Arctic  Greenland  Haptophyceae  Isochrysidales  ketone  ribosome DNA  Alaska  chemistry  classification  evolution  genetics  Germany  Haptophyta  Iceland  lake  metabolism  microbiology  phylogeny  sequence analysis  Alaska  Biological Evolution  DNA, Ribosomal  Germany  Haptophyta  Iceland  Ketones  Lakes  Phylogeny  Sequence Analysis, RNA