已选(0)清除
条数/页: 排序方式: |
| 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 |