A Biofilm Channel Origin for Vermiform Microstructure in Carbonate Microbialites [0.03%]
碳酸盐微生物岩内的 vermiform 微结构的生物膜通道起源解释
Yadira Ibarra,Pedro J Marenco,Jakob P Centlivre et al.
Yadira Ibarra et al.
A three-dimensional tubular fabric known as "vermiform microstructure" in Phanerozoic and Neoproterozoic carbonate microbialites has been hypothesized to represent the body fossil of nonspicular keratose demosponges. If correct, this interp...
Physiology, Not Nutrient Availability, May Have Limited Primary Productivity After the Emergence of Oxygenic Photosynthesis [0.03%]
生理学，而非营养物质的可用性可能限制了放氧光合作用出现之后的主生产量
Christen L Grettenberger,Dawn Y Sumner
Christen L Grettenberger
The evolution of oxygenic photosynthesis in Cyanobacteria was a transformative event in Earth's history. However, the scientific community disagrees over the duration of the delay between the origin of oxygenic photosynthesis and oxygenatio...
Fossil Geyserite and Testate Amoebae in Geothermal Spring Vent Pools: Paleoecology and Variable Preservation Quality in Jurassic Sinter of Patagonia (Deseado Massif, Argentina) [0.03%]
帕塔戈尼亚火成岩地区的化石碱沸石和有壳阿米巴：吉森期火成岩的古生态学与可变保存质量（阿根廷德塞ADOS MASSIF）
Ana Julia Sagasti,Kathleen A Campbell,Juan L García Massini et al.
Ana Julia Sagasti et al.
Geyserite is a type of terrestrial siliceous hot spring deposit (sinter) formed subaerially in proximal vent areas, with near-neutral pH, alkali chloride discharge fluids characterized by initial high temperatures (~73°C to up to 100°C) t...
Living to Lithified: Construction and Preservation of Silicified Biomarkers [0.03%]
从生至石：硅化生物标记物的构建与保存
Kalen L Rasmussen,Patrick H Thieringer,Sophia Nevadomski et al.
Kalen L Rasmussen et al.
Whole microorganisms are rarely preserved in the fossil record but actively silicifying environments like hot springs provide an opportunity for microbial preservation, making silicifying environments critical for the study of microbial lif...
Morphological and Microbial Diversity of Hydromagnesite Microbialites in Lake Salda: A Mars Analog Alkaline Lake [0.03%]
土耳其萨尔达湖类火星模拟碱性湖泊中的水菱镁矿微体化石的形态和微生物多样性
Yagmur Gunes,Fatih Sekerci,Burak Avcı et al.
Yagmur Gunes et al.
Lake Salda, a terrestrial analog for the paleolake in Jezero Crater on Mars, hosts active, subfossil, and fossil hydromagnesite microbialites, making it an ideal location to study microbialite formation and subsequent processes. Our underst...
Oceanic and Sedimentary Microbial Sulfur Cycling Controlled by Local Organic Matter Flux During the Ediacaran Shuram Excursion in the Three Gorges Area, South China [0.03%]
华南三峡地区埃迪卡拉纪舒拉姆事件硫循环受控于局部有机质通量的海洋和沉积微生物作用
Fumihiro Matsu&#x;ura,Yusuke Sawaki,Tsuyoshi Komiya et al.
Fumihiro Matsu&#x;ura et al.
The increased difference in the sulfur isotopic compositions of sedimentary sulfate (carbonate-associated sulfate: CAS) and sulfide (chromium-reducible sulfur: CRS) during the Ediacaran Shuram excursion is attributed to increased oceanic su...
A Spatially Restricted Distribution of Thermophilic Endospores in Laptev Sea Shelf Sediments Suggests a Limited Dispersal by Local Geofluids [0.03%]
拉普特海大陆架沉积物中耐热孢子的分布范围有限，表明局部地球流体扩散受限
Emelie Ståhl,Anna Linderholm,Volker Brüchert
Emelie Ståhl
Thermospores, the dormant resting stages of thermophilic bacteria, have been shown to be frequent but enigmatic components of cold marine sediments around the world. Multiple hypotheses have been proposed to explain their distribution, emph...
Significance of lignin and fungal markers in the Devonian (407 Ma) Rhynie Chert [0.03%]
狄文紀(4.07亿年前)Rhynie硅藻土中木质素和真菌標記物的意义
Alex I Holman,Stephen F Poropat,Paul F Greenwood et al.
Alex I Holman et al.
The Rhynie Chert (Lower Devonian, Scotland) hosts a remarkably well-preserved early terrestrial ecosystem. Organisms including plants, fungi, arthropods, and bacteria were rapidly silicified due to inundation by silica-rich hot spring fluid...
Controls on authigenic mineralization in experimental Ediacara-style preservation [0.03%]
实验研究埃迪卡拉型保存中自生矿物生成的控制因素
Silvina Slagter,Kurt O Konhauser,Derek E G Briggs et al.
Silvina Slagter et al.
The earliest evidence of complex macroscopic life on Earth is preserved in Ediacaran-aged siliciclastic deposits as three-dimensional casts and molds, known as Ediacara-style preservation. The mechanisms that led to this extraordinary prese...
Lateral redox variability in ca. 1.9 Ga marine environments indicated by organic carbon and nitrogen isotope compositions [0.03%]
约1.9Ga海洋环境横向氧化还原变化的有机碳、氮同位素组成指示
Kento Motomura,Andrey Bekker,Minoru Ikehara et al.
Kento Motomura et al.
The stepwise oxygenation of Earth's surficial environment is thought to have shaped the evolutionary history of life. Microfossil records and molecular clocks suggest eukaryotes appeared during the Paleoproterozoic, perhaps shortly after th...