FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3208034665> ?p ?o ?g. }

• W3208034665 endingPage "117240" @default.
• W3208034665 startingPage "117240" @default.
• W3208034665 abstract "Uranium isotopes (δ238U) have quickly become one of the most widely-used redox proxies in paleoceanographic studies. The quantitative power of the δ238U proxy derives from the long marine residence time of uranium and the dominance of reduction in fractionating uranium isotopes during removal from seawater. The seawater δ238U value is therefore sensitive to the size of the anoxic sink, and by extension, the area of the seafloor overlain by anoxic waters. Leveraging the ability of carbonates to record and retain the seawater δ238U value, and the ubiquity of carbonate sediments in the geologic record, numerous studies have quantified seafloor anoxia across ocean anoxic events, mass extinctions, and global climatic changes. In most cases, forward models of marine uranium isotope mass balance have been used, illustrating potential histories of seafloor anoxia during these events. Here we show that there are multiple ways in which such forward modeling can lead to spurious inferences of anoxia, including (i) the poor sensitivity of the δ238U proxy when fractional anoxia is high, and (ii) the inherent bias in generating illustrative forward model outputs in stratigraphic sections with expected anoxic intervals. We thus explore inverse modeling approaches to constrain the most likely history of seafloor anoxia for a given δ238U dataset, and ultimately develop a framework for doing so using Bayesian inference via Markov Chain Monte Carlo simulation. We show that this approach can recover simulated trends, and further reconstruct marine anoxia for eight published δ238U datasets. We find that some previous interpretations of anoxic seafloor extent were inaccurate, either because steady state was improperly assumed, or because the illustrative forward models used were poor fits to the data. In order to overcome these issues in future work with the δ238U redox proxy, we have made this model publicly available, and also offer suggestions for the judicious use of forward models. By building on this framework, the future quantification of marine anoxia during transient environmental perturbations can be performed consistently, thereby facilitating robust comparison of anoxic extent between events." @default.
• W3208034665 created "2021-11-08" @default.
• W3208034665 creator A5011371408 @default.
• W3208034665 creator A5013532424 @default.
• W3208034665 date "2022-01-01" @default.
• W3208034665 modified "2023-10-15" @default.
• W3208034665 title "Inverse methods for consistent quantification of seafloor anoxia using uranium isotope data from marine sediments" @default.
• W3208034665 cites W1849031713 @default.
• W3208034665 cites W1967847114 @default.
• W3208034665 cites W1976009908 @default.
• W3208034665 cites W1980763384 @default.
• W3208034665 cites W1987792566 @default.
• W3208034665 cites W1994510458 @default.
• W3208034665 cites W1995780830 @default.
• W3208034665 cites W1998235427 @default.
• W3208034665 cites W1998734655 @default.
• W3208034665 cites W2002037737 @default.
• W3208034665 cites W2008670387 @default.
• W3208034665 cites W2015444608 @default.
• W3208034665 cites W2023419609 @default.
• W3208034665 cites W2026367284 @default.
• W3208034665 cites W2038205310 @default.
• W3208034665 cites W2054842898 @default.
• W3208034665 cites W2055040741 @default.
• W3208034665 cites W2056760934 @default.
• W3208034665 cites W2061620779 @default.
• W3208034665 cites W2062036031 @default.
• W3208034665 cites W2062900030 @default.
• W3208034665 cites W2063942616 @default.
• W3208034665 cites W2075194511 @default.
• W3208034665 cites W2081499541 @default.
• W3208034665 cites W2107474811 @default.
• W3208034665 cites W2138309709 @default.
• W3208034665 cites W2147171518 @default.
• W3208034665 cites W2281239912 @default.
• W3208034665 cites W2315739580 @default.
• W3208034665 cites W2479796080 @default.
• W3208034665 cites W2529725158 @default.
• W3208034665 cites W2550777552 @default.
• W3208034665 cites W2577715832 @default.
• W3208034665 cites W2737063896 @default.
• W3208034665 cites W2743442732 @default.
• W3208034665 cites W2743798093 @default.
• W3208034665 cites W2790467359 @default.
• W3208034665 cites W2804241738 @default.
• W3208034665 cites W2886502670 @default.
• W3208034665 cites W2888056876 @default.
• W3208034665 cites W2888088296 @default.
• W3208034665 cites W2911892620 @default.
• W3208034665 cites W2983883401 @default.
• W3208034665 cites W2984469910 @default.
• W3208034665 cites W2991091787 @default.
• W3208034665 cites W2994357563 @default.
• W3208034665 cites W2997715461 @default.
• W3208034665 cites W3002404468 @default.
• W3208034665 cites W3003833666 @default.
• W3208034665 cites W3023649646 @default.
• W3208034665 cites W3026977701 @default.
• W3208034665 cites W3030252663 @default.
• W3208034665 cites W3037226283 @default.
• W3208034665 cites W3120218070 @default.
• W3208034665 cites W3128017491 @default.
• W3208034665 cites W3137230768 @default.
• W3208034665 cites W773413445 @default.
• W3208034665 doi "https://doi.org/10.1016/j.epsl.2021.117240" @default.
• W3208034665 hasPublicationYear "2022" @default.
• W3208034665 type Work @default.
• W3208034665 sameAs 3208034665 @default.
• W3208034665 citedByCount "16" @default.
• W3208034665 countsByYear W32080346652022 @default.
• W3208034665 countsByYear W32080346652023 @default.
• W3208034665 crossrefType "journal-article" @default.
• W3208034665 hasAuthorship W3208034665A5011371408 @default.
• W3208034665 hasAuthorship W3208034665A5013532424 @default.
• W3208034665 hasConcept C108970007 @default.
• W3208034665 hasConcept C111368507 @default.
• W3208034665 hasConcept C117485682 @default.
• W3208034665 hasConcept C127313418 @default.
• W3208034665 hasConcept C191897082 @default.
• W3208034665 hasConcept C192562407 @default.
• W3208034665 hasConcept C197248824 @default.
• W3208034665 hasConcept C555451288 @default.
• W3208034665 hasConceptScore W3208034665C108970007 @default.
• W3208034665 hasConceptScore W3208034665C111368507 @default.
• W3208034665 hasConceptScore W3208034665C117485682 @default.
• W3208034665 hasConceptScore W3208034665C127313418 @default.
• W3208034665 hasConceptScore W3208034665C191897082 @default.
• W3208034665 hasConceptScore W3208034665C192562407 @default.
• W3208034665 hasConceptScore W3208034665C197248824 @default.
• W3208034665 hasConceptScore W3208034665C555451288 @default.
• W3208034665 hasFunder F4320306076 @default.
• W3208034665 hasFunder F4320309398 @default.
• W3208034665 hasFunder F4320309666 @default.
• W3208034665 hasFunder F4320311180 @default.
• W3208034665 hasLocation W32080346651 @default.
• W3208034665 hasOpenAccess W3208034665 @default.
• W3208034665 hasPrimaryLocation W32080346651 @default.
• W3208034665 hasRelatedWork W1938106722 @default.

• next