Explanipedia

Technical note: assessing pretreatment approaches for serial pyrolysis-oxidation analysis of sedimentary organic carbon Open

Songfan He, Huiyuan Yang, Xingqian Cui · 2025

Ramped-temperature pyrolysis/oxidation (RPO) analysis has emerged as a powerful analytical technique for characterizing sedimentary organic carbon (OC) provenance and reactivity, bridging the knowledge gap between bulk carbon isotopic meas…

Technical note: Acidification methodology impacts sediment decarbonation as revealed by bulk and serial oxidation measurements Open

Songfan He, Huiyuan Yang, Xingqian Cui · 2025

Acidification is frequently adopted to remove carbonates preceding particulate organic carbon (POC) measurements. In practice, acid rinsing and acid fumigation are two typical and well-established acidification methods eliminating inorgani…

Ecosystem changes after Early Cretaceous seawater intrusion into the proto-South Atlantic Ocean Open

Jian Ma, Leonardo Fadel Cury, Anelize M. B. Rumbelsperger, Heidi L. Albrecht, Erwin W. Adams , et al. · 2025

Cycling and persistence of iron-bound organic carbon in subseafloor sediments Open

Y. Chen, Liang Dong, Weikang Sui, Mingyang Niu, Xingqian Cui , et al. · 2024

Organic-inorganic interactions of clay minerals and organic matter: Action mechanism and analysis techniques Open

Shang Xu, Tongxu Zhao, Xingqian Cui, Jingong Cai · 2024

Ecosystem transformation upon Aptian seawater ingress into the Proto-South Atlantic Ocean Open

Jian Ma, Leonardo Fadel Cury, Anelize Manuela Bahniuk Rumbelsperger, Heidi Albrecht, Erwin Adams , et al. · 2024

The early evolution of the South Atlantic Ocean following the Cretaceous break-up of Gondwana is extensively recorded in rift basins along the conjugate margins of Africa and Brazil. For the Brazil margin, divergent views of the source and…

Sulfurized Biomarkers of Tertiary Crude Oils in the Western Qaidam Basin: From Origin to Application Open

Jian Ma, Chaodong Wu, Xingqian Cui · 2024

Reactive iron as an important reservoir of marine organic carbon over geological timescales Open

Yun‐Ru Chen, Liang Dong, Weikang Sui, Mingyang Niu, Xingqian Cui , et al. · 2023

Reactive iron (FeR) has been suggested to serve as a semi-persistent sink of organic carbon (OC) in surface marine sediments, where approximately 10-20% of total OC (TOC) is associated with FeR (FeR-OC). However, the persistence of FeR-OC …

Early Cretaceous marine incursions into South Atlantic rift basins originated from the south Open

Xingqian Cui, Brent Wignall, Katherine H. Freeman, Roger E. Summons · 2023

The breakup of Gondwana resulted in sedimentary deposits recording lacustrine to marine environmental transitions in the South Atlantic rift basins during the Early Cretaceous. Currently, ambiguity pervades our understanding of the timing …

Global fjords as transitory reservoirs of labile organic carbon modulated by organo-mineral interactions Open

Xingqian Cui, Alfonso Mucci, Thomas S. Bianchi, Ding He, D. Vaughn , et al. · 2022

The global carbon cycle is strongly modulated by organic carbon (OC) sequestration and decomposition. Whereas OC sequestration is relatively well constrained, there are few quantitative estimates of its susceptibility to decomposition. Fjo…

Aromatic carotenoids: Biological sources and geological implications Open

Jian Ma, Xingqian Cui · 2022

Two-pronged kill mechanism at the end-Triassic mass extinction Open

Calum P. Fox, Jessica H. Whiteside, Paul E. Olsen, Xingqian Cui, Roger E. Summons , et al. · 2022

High-resolution biomarker and compound-specific isotope distributions coupled with the degradation of calcareous fossil remnants reveal that intensive euxinia and decalcification (acidification) driven by Central Atlantic magmatic province…

A transitory pool of labile organic carbon hosted in global fjords revealed by thermal pyrolytic decomposition analysis Open

Xingqian Cui, Thomas S. Bianchi, B. E. Rosenheim · 2022

Carotenoid biomarkers in Namibian shelf sediments: Anoxygenic photosynthesis during sulfide eruptions in the Benguela Upwelling System Open

Jian Ma, Katherine L. French, Xingqian Cui, Donald A. Bryant, Roger E. Summons · 2021

Significance Anoxygenic photosynthesis by phototrophic sulfur bacteria is prevalent in microbial mat ecosystems and in restricted, highly stratified aquatic environments. This limited distribution reflects their simultaneous requirements f…

The evolution of a coastal carbon store over the last millennium Open

Craig Smeaton, Xingqian Cui, Thomas S. Bianchi, Alix G. Cage, John Howe , et al. · 2021

Molecular and isotopic evidence reveals the end-Triassic carbon isotope excursion is not from massive exogenous light carbon Open

Calum P. Fox, Xingqian Cui, Jessica H. Whiteside, Paul E. Olsen, Roger E. Summons , et al. · 2020

Significance The end-Triassic mass extinction that occurred ∼202 Ma is one of the “Big Five” biotic crises of the Phanerozoic Eon. It is also accompanied by an organic carbon isotopic excursion that has long been interpreted as the result …

Niche expansion for phototrophic sulfur bacteria at the Proterozoic–Phanerozoic transition Open

Xingqian Cui, Xiao‐Lei Liu, Gaozhong Shen, Jian Ma, Fatima Husain , et al. · 2020

Significance Carotenoid pigments afford valuable clues about the chemistry and biology of both modern and ancient aquatic environments. This study reveals that fossil aromatic carotenoids—long considered biomarkers for anoxygenic, phototro…

Fjords as Aquatic Critical Zones (ACZs) Open

Thomas S. Bianchi, Sandra Arndt, William E. N. Austin, Douglas I. Benn, Sébastien Bertrand , et al. · 2020

Microbial life in the nascent Chicxulub crater Open

Bettina Schaefer, Kliti Grice, Marco J. L. Coolen, Roger E. Summons, Xingqian Cui , et al. · 2020

The Chicxulub crater was formed by an asteroid impact at ca. 66 Ma. The impact is considered to have contributed to the end-Cretaceous mass extinction and reduced productivity in the world’s oceans due to a transient cessation of photosynt…

Biomarkers and Isotopes in the End-Triassic Extinction: Implications for the δ13Corg Record and Extinction Open

Calum P. Fox, Jessica H. Whiteside, Paul E. Olsen, Xingqian Cui, Roger E. Summons , et al. · 2020

Microbial life in the nascent Chicxulub crater Open

Bettina Schaefer, Kliti Grice, Marco J. L. Coolen, Roger E. Summons, Xingqian Cui , et al. · 2020

The Chicxulub crater was formed by an asteroid impact at ca. 66 Ma. The impact is considered to have contributed to the end-Cretaceous mass extinction and reduced productivity in the world’s oceans due to a transient cessation of photosynt…

Hydrological Controls on Sulfur Cycling in the Green River Formation Open

Antoine Crémière, Xingqian Cui, Christopher Tino, Maxwell Pommer, Matthew Roychowdhury , et al. · 2020

The Holocene Evolution of a Sedimentary Carbon Store in a Mid Latitude Fjord Open

Craig Smeaton, Xingqian Cui, Thomas S. Bianchi, Alix G. Cage, John Howe , et al. · 2019

Fjord sediments are recognized as hotspots for the burial and storage of organic carbon, yet little is known about what drives the formation of these coastal carbon stores and how this has altered over time. Here we show that fjords can ac…

CMS: Atmospheric CO2 and C Isotopes, Fossil Fuel Contributions, California, 2014-2015 Open

Heather Graven, Maria Fischer, T. J. Lueker, Sohee Jeong, T. P. Guilderson , et al. · 2018

This dataset provides measurements of atmospheric CO2 concentrations, carbon isotopes d13C and D14C, and fossil fuel CO2 (ffCO2) estimates from nine observation sites in California over three month-long campaigns in separate seasons of 201…

The Role of Reactive Iron in the Preservation of Terrestrial Organic Carbon in Estuarine Sediments Open

Bin Zhao, Peng Yao, Thomas S. Bianchi, Michael R. Shields, Xingqian Cui , et al. · 2018

To better understand the role of reactive Fe (Fe R ) in the preservation of sedimentary organic carbon (SOC) in estuarine sediments, we examined specific surface area, grain size composition, total OC (TOC), lignin phenols, Fe R , Fe R ‐as…

Spatiotemporal variability of hydrocarbons in surface sediments from an intensively human-impacted Xiaoqing River-Laizhou Bay system in the eastern China: Occurrence, compositional profile and source apportionment Open

Ding He, Kai Zhang, Xingqian Cui, Jianhui Tang, Yongge Sun · 2018

Using fecal sterols to assess dynamics of sewage input in sediments along a human-impacted river-estuary system in eastern China Open

Ding He, Kai Zhang, Jianhui Tang, Xingqian Cui, Yongge Sun · 2018

Differential effects of solid‐phase extraction resins on the measurement of dissolved lignin‐phenols and organic matter composition in natural waters Open

A. R. Arellano, Thomas S. Bianchi, Jack Hutchings, Michael R. Shields, Xingqian Cui · 2017

Compositional changes in dissolved organic matter (DOM) matrix via solid phase extraction (SPE) remain under‐constrained due to disproportional extraction of specific groups of compounds. This study elucidates changes in the composition of…

Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14C Ramped Pyrolysis and Lignin Biomarkers Open

Xiaowen Zhang, Thomas S. Bianchi, Xingqian Cui, B. E. Rosenheim, Chien‐Lu Ping , et al. · 2017

The deposition of terrestrial‐derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well c…

Source and composition of sedimentary organic matter in the head of Three Gorges Reservoir: a multiproxy approach using δ[superscript 13]C, lignin phenols, and lipid biomarker analyses Open

Ding He, Changfeng Zhu, Xiao Shang-bin, Xingqian Cui, Yuting Sun · 2017

A multiproxy approach including bulk organic carbon, δ[superscript 13]C, lignin phenols, and lipid biomarker analyses were applied to characterize the source and composition of sedimentary organic matter in the head part of Three Gorges Re…

Xingqian Cui YOU? Author Swipe