搜索结果: 1-9 共查到“海洋科学 Redox”相关记录9条 . 查询时间(0.082 秒)
中国地质大学科学技术发展院王海洋(博士研究生)，李超* 等, BGEG国家重点实验室，Geochimica et Cosmochimica Acta(2019), Spatiotemporal redox heterogeneity and transient marine shelf oxygenation in the Mesoproterozoic ocean
中元古代；海洋高度；时空差异；氧化还原状态；短暂；陆架；氧化事件
2021/10/15
近日，中国地质大学生物地质与环境地质国家重点实验室李超教授团队在国际著名地球化学期刊《Geochimica et Cosmochimica Acta》(Nature Index)上发表题为“Spatiotemporal redox heterogeneity and transient marine shelf oxygenation in the Mesoproterozoic ocean”（中...
中国地质大学科学技术发展院宋虎跃BGEG国家重点实验室 Geology (2017) Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass extinction
全球；变冷；事件；导致；生物；大灭绝
2021/10/21
近日，中国地质大学生物地质与环境地质国家重点实验室宋虎跃副研究员及合作者在国际地学领域权威期刊《GEOLOGY》上发表题目“Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass ex...
Seasonal Changes in the Hydrochemical Structure of the Black Sea Redox Zone
Seasonal Changes Hydrochemical Structure Black Sea Redox Zone
2015/7/27
The Black Sea is the world's largest marine anoxic basin. The Black Sea's water below a depth of ~100 m is enriched with hydrogen sulfide that formed after the intrusion of seawater as a result of sea...
Phosphatases relieve carbon limitation of microbial activity in Baltic Sea sediments along a redox-gradient
carbon limitation Baltic Sea sediments
2014/4/4
The relationship between phosphatase activity and the element limiting microbial activity (carbon [C], nitrogen
[N], or phosphorus [P]) was studied experimentally in sediment from four stations in th...
Distribution and redox speciation of dissolved iron on the European continental margin
Distribution redox speciation dissolved iron the European continental margin
2014/4/21
To investigate the biogeochemistry of iron in the waters of the European continental margin, we determined the dissolved iron distribution and redox speciation in filtered (<0.2 μm) open-ocean and she...
Modeling vertical excursions of the redox boundary in sediments: Application to deep basins of the Arctic Ocean
Modeling vertical excursions redox boundary in sediments deep basins of the Arctic Ocean
2014/5/4
A diagenetic reaction-transport model was used to simulate how the sediment redox boundary migrates in response to persistent or episodic changes in the deposition flux of degradable organic matter an...
Extracellular production of superoxide by marine diatoms: Contrasting effects on iron redox chemistry and bioavailability
Extracellular production of superoxide marine diatoms Contrasting effects iron redox chemistry and bioavailability
2014/5/9
We report the extracellular production of superoxide in cultures of the marine diatoms Thalassiosira weissflogii and Thalassiosira pseudonana. In EDTA-buffered media with ~45 pmol L-1 iron (Fe)(III)',...
Chemoautotrophy in the redox transition zone of the Cariaco Basin: A significant midwater source of organic carbon production
Chemoautotrophy in the redox transition zone Cariaco Basin A significant midwater source organic carbon production
2014/5/30
During the CARIACO time series program, microbial standing stocks, bacterial production, and acetate turnover were consistently elevated in the redox transition zone (RTZ) of the Cariaco Basin, the de...
Light-induced redox cycling of iron in circumneutral lakes
Light-induced redox cycling of iron circumneutral lakes
2014/5/30
The light-induced redox cycling of FeII/FeIII was studied both in laboratory experiments and in the field in two circumneutral Swiss lakes: Greifensee, a eutrophic, natural water body, and Melchsee, a...