Results 1 to 10 of about 339,536 (118)

Taxon-specific redox conditions control fossilisation pathways [PDF]

Nature Communications
The preservation of fossils in the rock record depends on complex redox processes. Redox conditions around different decaying organisms have rarely been monitored in the context of experimental taphonomy.
Nora Corthésy, Jonathan B. Antcliffe, Farid Saleh   +2 more
doaj   +2 more sources

Mapping of neuronal redox conditions in a mouse model of Rett syndrome [PDF]

NeuroImage: Reports
Rett syndrome (RTT) is associated with a systemic redox imbalance, potentially provoking cellular dysfunction and contributing to some of the disease symptoms. While previous studies have reported these redox alterations also in brain, the exact cerebral
Hendrik Woeste, Laura van Agen, Michael Müller   +2 more
doaj   +2 more sources

Spatiotemporal Evolution and Genesis of the Late Ordovician—Early Silurian Marine Euxinia in Northeastern Upper Yangtze Basin, South China

Frontiers in Earth Science, 2021
Marine redox conditions and their dynamic changes were a major factor that controlled the formation of black shale and caused the late Ordovician marine extinction in the Upper Yangtze Basin (South China).
Chaoyong Wang, Chaoyong Wang, Zaitian Dong, Zaitian Dong, Xuehai Fu, Xuehai Fu, Qing Chen, Xiaofan Liu, Mengmeng Tang, Mengmeng Tang, Zetang Wang, Zetang Wang   +11 more
doaj   +1 more source

The Study of Uranium Accumulation in Marine Bottom Sediments: Effect of Redox Conditions at the Time of Sedimentation

Geosciences, 2021
To evaluate the effect of redox conditions at the sedimentation stage on uranium content and U/TOC ratio in marine source rocks, we analyzed the accumulation of uranium in modern marine bottom sediments formed in different redox conditions.
Nadezhda Khaustova, Yulia Tikhomirova, Svetlana Korost, Elena Poludetkina, Andrey Voropaev, Mikhail Mironenko, Mikhail Spasennykh   +6 more
doaj   +1 more source

Multiple Controls on Organic Matter Accumulation in the Intraplatform Basin of the Early Cambrian Yangtze Platform, South China

Journal of Marine Science and Engineering, 2023
Studying the accumulation rules of organic matter (OM) in paleo-ocean sediments can not only enhance our understanding of how OM becomes enriched in ancient oceans but also provide guidance for the exploration of shale gas in unconventional shale strata.
Qiyang Zhang, Entao Liu, Songqi Pan, Hua Wang, Zhenhua Jing, Zhengfu Zhao, Ruiyue Zhu   +6 more
doaj   +1 more source

A Pulsed Oxygenation in Terminal Paleoproterozoic Ocean: Evidence From the Transition Between the Chuanlinggou and Tuanshanzi Formations, North China

Geochemistry, Geophysics, Geosystems, 2021
The mid‐Proterozoic (ca. 1.8–0.8 Ga) witnessed a period of stable carbon cycling and long stasis in eukaryotic evolution, which was commonly ascribed to the persistently low oxygen levels in the atmosphere‐ocean system.
Beilei Wei, Dongjie Tang, Xiaoying Shi, Maxwell Lechte, Limin Zhou, Xiqiang Zhou, Huyue Song   +6 more
doaj   +1 more source

Distribution Characteristics and Genesis of Marine Anoxic Conditions in the Southwest of the Upper Yangtze Basin During the Late Ordovician–Early Silurian, South China

Frontiers in Earth Science, 2022
The distribution characteristics and formation of marine anoxic conditions through the Late Ordovician–Early Silurian (O–S) remain poorly resolved despite their importance in the preservation of sedimentary organic matter and the formation of black shale.
Zaitian Dong, Zaitian Dong, Zetang Wang, Zetang Wang, Wenli Zhang, Wenli Zhang, Shaoning Cheng, Xuehai Fu, Xuehai Fu, Chaoyong Wang, Chaoyong Wang   +10 more
doaj   +1 more source

Carbon input management in temperate rice paddies: implications for methane emissions and crop response

Italian Journal of Agronomy, 2020
Agriculture contributes to over 20% of global anthropogenic GHG emissions and irrigated paddy fields account for 5–10% of CH4 emissions. Main organic input providing methanogenesis substrate is straw. We hypothesized that removing rice straw can mitigate
Chiara Bertora, Barbara Moretti, Matteo Peyron, Simone Pelissetti, Cristina Lerda, Daniel Said-Pullicino, Marco Milan, Silvia Fogliatto, Francesco Vidotto, Luisella Celi, Dario Sacco   +10 more
doaj   +1 more source

Glacial-Interglacial Variations in Organic Carbon Burial in the Northwest Pacific Ocean Over the Last 380 kyr and its Environmental Implications

Frontiers in Earth Science, 2022
The carbon cycle on the Earth’s surface is linked to long-term variations in atmospheric CO2 as well as carbon sequestration in various pools. The burial of particulate organic carbon (OC) in marine sediments is also highly sensitive to the global ...
Yuying Zhang, Limin Hu, Limin Hu, Limin Hu, Yonghua Wu, Yonghua Wu, Zhi Dong, Zhengquan Yao, Zhengquan Yao, Xun Gong, Xun Gong, Yanguang Liu, Yanguang Liu, Minoru Ikehara, Xuefa Shi, Xuefa Shi   +15 more
doaj   +1 more source

Nation-wide estimation of groundwater redox conditions and nitrate concentrations through machine learning

Environmental Research Letters, 2020
The protection of water resources and development of mitigation strategies require large-scale information on water pollution such as nitrate. Machine learning techniques like random forest (RF) have proven their worth for estimating groundwater quality ...
Lukas Knoll, Lutz Breuer, Martin Bach
doaj   +1 more source