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...
Molecular and mineral responses of corals grown under artificial Calcite Sea conditions [0.03%]
在人工 calcite 海洋条件下生长的珊瑚的分子和矿物反应
Nicola Conci,Erika Griesshaber,Ramón E Rivera-Vicéns et al.
Nicola Conci et al.
The formation of skeletal structures composed of different calcium carbonate polymorphs (e.g. aragonite and calcite) appears to be both biologically and environmentally regulated. Among environmental factors influencing aragonite and calcit...
Dissolved silica affects the bulk iron redox state and recrystallization of minerals generated by photoferrotrophy in a simulated Archean ocean [0.03%]
溶解硅影响模拟太古代海洋中光致铁营养菌产生的矿物的总体铁氧化还原态和重结晶过程
Alice Zhou,Alexis S Templeton,Jena E Johnson
Alice Zhou
Chemical sedimentary deposits called Banded Iron Formations (BIFs) are one of the best surviving records of ancient marine (bio)geochemistry. Many BIF precursor sediments precipitated from ferruginous, silica-rich waters prior to the Great ...
New keratose sponges after the end-Permian extinction provide insights into biotic recoveries [0.03%]
二叠纪末大灭绝后的新的角海绵提供了对生物恢复的见解
Siqi Wu,Joachim Reitner,David A T Harper et al.
Siqi Wu et al.
We challenge the prevailing view that the end-Permian extinction impeded the Triassic evolution of sponges. Here, we report a deep-water community dominated by abundant keratose sponges in the lowest Triassic strata from Southwest China. Th...
Deep subsurface microbial life in impact-altered Late Paleozoic granitoid rocks from the Chicxulub impact crater [0.03%]
奇克苏鲁布撞击坑内晚古生代花岗质岩石中撞击改变的深部地下微生物生命
Sohaib Naseer Quraish,Charles Cockell,Cornelia Wuchter et al.
Sohaib Naseer Quraish et al.
In 2016, IODP-ICDP Expedition 364 recovered an 829-meter-long core within the peak ring of the Chicxulub impact crater (Yucatán, Mexico), allowing us to investigate the post-impact recovery of the heat-sterilized deep continental microbial...
Fossilized giant sulfide-oxidizing bacteria from the Devonian Hollard Mound seep deposit, Morocco [0.03%]
摩洛哥泥盆纪霍勒德喷口沉积物中巨大型硫化物氧化细菌化石
Daniel Smrzka,Jennifer Zwicker,Heide Schulz-Vogt et al.
Daniel Smrzka et al.
The giant sulfide-oxidizing bacteria are particularly prone to preservation in the rock record, and their fossils have been identified in ancient phosphorites, cherts, and carbonates. This study reports putative spherical fossils preserved ...
Microbial mats and their palaeoenvironmental analysis in offshore - shelf facies of the Los Molles Formation (Toarcian - Lower Callovian) in the Chacay Melehue area, Neuquén Basin, Argentina [0.03%]
阿根廷内乌肯盆地查卡伊梅莱胡埃地区洛斯莫尔斯组（下通贾尼安-卡尔洛夫阶）海台相地层中的微生物席及其古环境分析
Maximiliano Nicolás Rodriguez,Débora Mical Campetella,Noelia Beatriz Carmona et al.
Maximiliano Nicolás Rodriguez et al.
This contribution presents the first study focused on the analysis of microbial mats in the Los Molles Formation (Toarcian - Early Callovian), Neuquén Basin, Argentina. This unit mainly represents offshore-to-shelf environments affected by...
Contrasting morphology and growth habits of Frutexites in Late Devonian reef complexes of the Canning Basin, northwestern Australia [0.03%]
澳大利亚西北部康宁盆地晚泥盆世造礁复合体中Fructices形态和生长习性的差异性研究
France Champenois,Annette D George,Kenneth J McNamara et al.
France Champenois et al.
Frutexites-like microstructures are described from the exhumed Late Devonian reef complexes of the northern Canning Basin, Western Australia. Several high-resolution imaging techniques, including X-ray microcomputerised tomography, scanning...
Distinctive microfossil supports early Paleoproterozoic rise in complex cellular organisation [0.03%]
独特的微化石表明太古宙晚期复杂细胞结构的兴起
Erica V Barlow,Christopher H House,Ming-Chang Liu et al.
Erica V Barlow et al.
The great oxidation event (GOE), ~2.4 billion years ago, caused fundamental changes to the chemistry of Earth's surface environments. However, the effect of these changes on the biosphere is unknown, due to a worldwide lack of well-preserve...