Origin and modern microbial ecology of secondary mineral deposits in Lehman Caves, Great Basin National Park, NV, USA [0.03%]
美国大盆地国家公园莱曼洞穴次生矿物沉积物的起源及其现代微生物生态体系
Zoë E Havlena,Louise D Hose,Harvey R DuChene et al.
Zoë E Havlena et al.
Lehman Caves is an extensively decorated high desert cave that represents one of the main tourist attractions in Great Basin National Park, Nevada. Although traditionally considered a water table cave, recent studies identified abundant spe...
Evaluating the multiple sulfur isotope signature of Eoarchean rocks from the Isua Supracrustal Belt (Southwest-Greenland) by MC-ICP-MS: Volcanic nutrient sources for early life [0.03%]
多硫同位素质谱技术测定伊苏阿超变带太古宙火山岩中的硫同位素组成：早期生命的火山营养来源
Jane E Macdonald,Patrick Sugden,Matthew Dumont et al.
Jane E Macdonald et al.
On the anoxic Archean Earth, prior to the onset of oxidative weathering, electron acceptors were relatively scarce, perhaps limiting microbial productivity. An important metabolite may have been sulfate produced during the photolysis of vol...
Calcium isotope fractionation by intracellular amorphous calcium carbonate (ACC) forming cyanobacteria [0.03%]
细胞内无定形碳酸钙形成的蓝藻的钙同位素分馏效应
Neha Mehta,Harold Bradbury,Karim Benzerara
Neha Mehta
The formation of intracellular amorphous calcium carbonate (ACC) by various cyanobacteria is a widespread biomineralization process, yet its mechanism and importance in past and modern environments remain to be fully comprehended. This stud...
Preserved particulate organic carbon is likely derived from the subsurface sulfidic photic zone of the Proterozoic Ocean: evidence from a modern, oxygen-deficient lake [0.03%]
保存的有机碳颗粒可能源自前寒武纪海洋缺氧光合层：来自现代低氧湖泊的证据
Ashley B Cohen,Lisa N Christensen,Felix Weber et al.
Ashley B Cohen et al.
Biological processes in the Proterozoic Ocean are often inferred from modern oxygen-deficient environments (MODEs) or from stable isotopes in preserved sediment. To date, few MODE studies have simultaneously quantified carbon fixation genes...
Nubecularia-coralline algal-serpulid-microbial bioherms of the Paratethys Sea-Distribution and paleoecological significance (upper Serravallian, upper Sarmatian, Middle Miocene) [0.03%]
副特提斯海的Nubecularia-石珊瑚虫-蠕虫-微生物礁体-分布及古生态意义（Serravallian晚期，Sarmatian晚期，中新世中期）
Werner E Piller,Mathias Harzhauser
Werner E Piller
Nubecularia bioherms represent unique bioconstructions that are restricted to the upper Serravallian of the Paratethys and have been reported since the 19th century. They occur in the Central Paratethys in the late Sarmatian and the Eastern...
Comprehensive molecular-isotopic characterization of archaeal lipids in the Black Sea water column and underlying sediments [0.03%]
黑海水柱及底层沉积物中古菌脂类的综合分子同位素特征分析
Qing-Zeng Zhu,Marcus Elvert,Travis B Meador et al.
Qing-Zeng Zhu et al.
The Black Sea is a permanently anoxic, marine basin serving as model system for the deposition of organic-rich sediments in a highly stratified ocean. In such systems, archaeal lipids are widely used as paleoceanographic and biogeochemical ...
Groundwater microbial communities reflect geothermal activity on volcanic island [0.03%]
火山岛上地下水微生物群落反映地质活动
Sheree J Watson,Cédric Arisdakessian,Maria Petelo et al.
Sheree J Watson et al.
Studies of the effects of volcanic activity on the Hawaiian Islands are extremely relevant due to the past and current co-eruptions at both Mauna Loa and Kīlauea. The Big Island of Hawai'i is one of the most seismically monitored volcanic ...
Hydrogeological controls on microbial activity and habitability in the Precambrian continental crust [0.03%]
前寒武纪大陆地壳中水文地质对微生物活动和宜居性的影响
Min Song,Oliver Warr,Jon Telling et al.
Min Song et al.
Earth's deep continental subsurface is a prime setting to study the limits of life's relationship with environmental conditions and habitability. In Precambrian crystalline rocks worldwide, deep ancient groundwaters in fracture networks are...
Geerat J Vermeij
Geerat J Vermeij
Earth's surface has been irreversibly altered by the activity of organisms, a process that has accelerated as the power of the biosphere (the rate at which life extracts and deploys energy) has increased over time. This trend is incompatibl...
Enameloid-bound δ15 N reveals large trophic separation among Late Cretaceous sharks in the northern Gulf of Mexico [0.03%]
釉质结合的δ15N揭示了墨西哥湾北部白垩纪晚期鲨鱼之间的巨大营养分离程度
Chelsea M Comans,Sandi M Smart,Emma R Kast et al.
Chelsea M Comans et al.
The nitrogen isotopic composition (15 N/14 N ratio, or δ15 N) of enameloid-bound organic matter (δ15 NEB ) in shark teeth was recently developed to investigate the biogeochemistry and trophic structures (i.e., food webs) of the ancient oc...