Untangling the Primary Biotic and Abiotic Controls on Oxygen, Inorganic and Organic Carbon Isotope Signals in Modern Microbialites [0.03%]
解缠现代微生物岩中氧元素和无机、有机碳同位素信号的主要生物和非生物控制因素
Robin Havas,Christophe Thomazo,Jeanne Caumartin et al.
Robin Havas et al.
Microbialites are organo-sedimentary structures formed throughout most of the Earth history, over a wide range of geological contexts, and under a multitude of environmental conditions affecting their composition. The carbon and oxygen isot...
How to Make a Rock in 150 Days: Observations of Biofilms Promoting Rapid Beachrock Formation [0.03%]
海滩岩石快速形成的生物薄膜促进作用观测：150天内制成岩石的技术研究
Brianna M Hibner,Marjorie D Cantine,Elizabeth J Trower et al.
Brianna M Hibner et al.
Beachrock is a type of carbonate-cemented rock that forms via rapid cementation in the intertidal zone. Beachrock is a valuable geological tool as an indicator of paleoshorelines and may protect shorelines from erosion. Previous studies pre...
Kendall Valentine,Tanja Bosak,Maria Kondrat&#x;yev et al.
Kendall Valentine et al.
The growth of most stromatolites is a result of interactions among the growth of microbial mats, mineral precipitation, water flow, and sediment movement. Here, we ask how oxygenic photosynthetic microbes colonize surfaces and interact with...
Microbially Enhanced Growth and Metal Capture by Ferromanganese Concretions in a Laboratory Experiment [0.03%]
实验室实验中微生物促进铁锰结核生长和金属富集的作用
Renata Majamäki,Joonas Wasiljeff,Lotta Purkamo et al.
Renata Majamäki et al.
The growth and metal enrichment of ferromanganese minerals on the seafloor have intrigued many studies, yet the role of microbes in the process has remained elusive. Here, we assessed the microbial influence on the growth and trace metal ac...
Cyanobacteria Boring Limestones in Freshwater Settings-Their Pioneering Role in Sculpturing Pebbles and Carbonate Dissolution [0.03%]
蓝藻腐蚀淡水环境中的石灰岩——它们在雕琢卵石和碳酸盐溶解方面的开创性作用
Andreas Wetzel,Jakob Zopfi,Alfred Uchman
Andreas Wetzel
In freshwater lakes and rivers, cyanobacteria belonging to the family Leptolyngbyaceae bore > 1 mm deep into limestone pebbles by dissolving carbonate at the tip of their 3-8 μm-thick filaments. The abundance of these borings decreases dow...
Crystallization Pathways of Iron Formations: Insights From Magnetic Properties and High-Resolution Imaging of the 2.7 Ga Carajás Formation, Brazil [0.03%]
结晶途径与磁性：巴西27亿年卡莱阿斯组铁建造的磁学和高分辨率成像研究
Livia Teixeira,Julie Carlut,Eric Siciliano Rego et al.
Livia Teixeira et al.
Banded iron formations (BIFs) are chemical sedimentary rocks commonly utilized for exploring the chemistry and redox state of the Precambrian ocean. Despite their significance, many aspects regarding the crystallization pathways of iron oxi...
Early-Branching Cyanobacteria Grow Faster and Upregulate Superoxide Dismutase Activity Under a Simulated Early Earth Anoxic Atmosphere [0.03%]
早期分支的蓝藻细菌在模拟的无大气层的地球早期厌氧环境中生长更快并上调超氧化物歧化酶活性
Sadia S Tamanna,Joanne S Boden,Kimberly M Kaiser et al.
Sadia S Tamanna et al.
The evolution of oxygenic photosynthesis during the Archean (4-2.5 Ga) required the presence of complementary reducing pathways to maintain the cellular redox balance. While the timing of the evolution of superoxide dismutases (SODs), enzym...
The Impact of Early Diagenesis on Biosignature Preservation in Sulfate Evaporites: Insights From Messinian (Late Miocene) Gypsum [0.03%]
硫酸盐蒸发岩中生物标志物保存受早期成岩作用影响：晚 Miocene 迈希尼安石膏的启示
Luca Pellegrino,Marcello Natalicchio,Andrea Cotellucci et al.
Luca Pellegrino et al.
Due to their fast precipitation rate, sulfate evaporites represent excellent repositories of past life on Earth and potentially on other solid planets. Nevertheless, the preservation potential of biogenic remains can be compromised by extre...
Living in Their Heyday: Iron-Oxidizing Bacteria Bloomed in Shallow-Marine, Subtidal Environments at ca. 1.88 Ga [0.03%]
约18.8亿年前浅海潮下域铁氧化细菌的繁盛生长
Alex Kovalick,Andy W Heard,Aleisha C Johnson et al.
Alex Kovalick et al.
The majority of large iron formations (IFs) were deposited leading up to Earth's great oxidation episode (GOE). Following the GOE, IF deposition decreased for almost 500 Myr. Subsequently, around 1.88 Ga, there was widespread deposition of ...
The Effects of Plant-Microbe-Environment Interactions on Mineral Weathering Patterns in a Granular Basalt [0.03%]
植物-微生物-环境互作对颗粒玄武岩风化矿物的影响
Valerie R Milici,Samuel Abiven,Hannes H Bauser et al.
Valerie R Milici et al.
The importance of biota to soil formation and landscape development is widely recognized. As biotic complexity increases during early succession via colonization by soil microbes followed by vascular plants, effects of biota on mineral weat...