FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4288045130> ?p ?o ?g. }

• W4288045130 endingPage "111161" @default.
• W4288045130 startingPage "111161" @default.
• W4288045130 abstract "Accelerator Mass Spectrometry (AMS) 14C dating is a widely applied method for establishing high-precision chronologies used to underpin late Quaternary paleoclimatic studies. Feedbacks associated with Antarctic Ice Sheets (AIS) and Southern Ocean variance are thought to have played a critical role in regulating past global climate changes since the Last Glacial Maximum. However, determining the exact role of the AIS and Southern Ocean in these changes has proven difficult because of the sparse occurrence of biogenic carbonate suitable for AMS 14C dating in Antarctica. Consequently, AMS 14C dating is often measured on acid insoluble organic matter (AIOM) from bulk sediment samples, which are often biased towards ages that are older than the depositional age, due to pervasive reworking of old carbon. In this scenario, ages can still potentially provide maximum deposition ages, but such interpretations need to be assessed carefully. Here, we document AIOM and foraminifer AMS 14C dates at the same depth intervals from Antarctic continental margin cores, and we find AIOM AMS 14C dates can range between 2000 and 16,000 years younger than those of foraminifera samples. The younger AIOM 14C dates were found in bioturbated sedimentary facies, which often have extremely low sedimentation rates in Antarctica. In cores with low sedimentation rates, the down sediment contribution of organic carbon from macro-benthos can be quite significant in the sediment column with low organic carbon concentration. After considering possibilities of contamination, foraminifer reworking, and remineralization of secondary carbonate to explain this offset, we conclude that bioturbation plays an important role in the Antarctic carbon cycle as a young carbon supplier to depth into the sediment column. This has clear implications for using condensed sedimentary sections to date post-LGM records in Antarctica. These bioturbation processes also have implications for novel radiocarbon dating methods that have recently been developed to overcome sediment reworking processes and more accurately constrain timing of past AIS retreat, including ramped pyrolysis and compound specific isotopes methods." @default.
• W4288045130 created "2022-07-27" @default.
• W4288045130 creator A5002657016 @default.
• W4288045130 creator A5029777316 @default.
• W4288045130 creator A5033409609 @default.
• W4288045130 creator A5040697906 @default.
• W4288045130 creator A5065769556 @default.
• W4288045130 creator A5079113129 @default.
• W4288045130 date "2022-09-01" @default.
• W4288045130 modified "2023-09-25" @default.
• W4288045130 title "Bioturbation supplying young carbon into West Antarctic continental margin sediment" @default.
• W4288045130 cites W101880634 @default.
• W4288045130 cites W1532110124 @default.
• W4288045130 cites W1636088961 @default.
• W4288045130 cites W1880800556 @default.
• W4288045130 cites W1964932395 @default.
• W4288045130 cites W1979491259 @default.
• W4288045130 cites W2009316568 @default.
• W4288045130 cites W2021289239 @default.
• W4288045130 cites W2025221854 @default.
• W4288045130 cites W2036123858 @default.
• W4288045130 cites W2051026355 @default.
• W4288045130 cites W2055461100 @default.
• W4288045130 cites W2061341574 @default.
• W4288045130 cites W2072621457 @default.
• W4288045130 cites W2075557775 @default.
• W4288045130 cites W2076268698 @default.
• W4288045130 cites W2078758608 @default.
• W4288045130 cites W2079188710 @default.
• W4288045130 cites W2109411287 @default.
• W4288045130 cites W2110072752 @default.
• W4288045130 cites W2110698623 @default.
• W4288045130 cites W2129236540 @default.
• W4288045130 cites W2143748178 @default.
• W4288045130 cites W2147040145 @default.
• W4288045130 cites W2264790051 @default.
• W4288045130 cites W2278747756 @default.
• W4288045130 cites W2317802947 @default.
• W4288045130 cites W2334002538 @default.
• W4288045130 cites W2355828686 @default.
• W4288045130 cites W2763708522 @default.
• W4288045130 cites W2768635216 @default.
• W4288045130 cites W2807492042 @default.
• W4288045130 cites W2807858859 @default.
• W4288045130 cites W2899897098 @default.
• W4288045130 cites W2920793208 @default.
• W4288045130 cites W2974920706 @default.
• W4288045130 cites W3000508975 @default.
• W4288045130 cites W3013391827 @default.
• W4288045130 cites W3028092386 @default.
• W4288045130 cites W3043527246 @default.
• W4288045130 cites W3091005004 @default.
• W4288045130 cites W4246104124 @default.
• W4288045130 doi "https://doi.org/10.1016/j.palaeo.2022.111161" @default.
• W4288045130 hasPublicationYear "2022" @default.
• W4288045130 type Work @default.
• W4288045130 citedByCount "2" @default.
• W4288045130 countsByYear W42880451302023 @default.
• W4288045130 crossrefType "journal-article" @default.
• W4288045130 hasAuthorship W4288045130A5002657016 @default.
• W4288045130 hasAuthorship W4288045130A5029777316 @default.
• W4288045130 hasAuthorship W4288045130A5033409609 @default.
• W4288045130 hasAuthorship W4288045130A5040697906 @default.
• W4288045130 hasAuthorship W4288045130A5065769556 @default.
• W4288045130 hasAuthorship W4288045130A5079113129 @default.
• W4288045130 hasConcept C100134115 @default.
• W4288045130 hasConcept C109007969 @default.
• W4288045130 hasConcept C110872660 @default.
• W4288045130 hasConcept C111368507 @default.
• W4288045130 hasConcept C126753816 @default.
• W4288045130 hasConcept C127313418 @default.
• W4288045130 hasConcept C136894858 @default.
• W4288045130 hasConcept C151730666 @default.
• W4288045130 hasConcept C153018869 @default.
• W4288045130 hasConcept C15739521 @default.
• W4288045130 hasConcept C158787203 @default.
• W4288045130 hasConcept C160464908 @default.
• W4288045130 hasConcept C186240526 @default.
• W4288045130 hasConcept C18903297 @default.
• W4288045130 hasConcept C191897082 @default.
• W4288045130 hasConcept C192562407 @default.
• W4288045130 hasConcept C197435368 @default.
• W4288045130 hasConcept C201867031 @default.
• W4288045130 hasConcept C2780223605 @default.
• W4288045130 hasConcept C2780659211 @default.
• W4288045130 hasConcept C2816523 @default.
• W4288045130 hasConcept C6939412 @default.
• W4288045130 hasConcept C77928131 @default.
• W4288045130 hasConcept C86803240 @default.
• W4288045130 hasConceptScore W4288045130C100134115 @default.
• W4288045130 hasConceptScore W4288045130C109007969 @default.
• W4288045130 hasConceptScore W4288045130C110872660 @default.
• W4288045130 hasConceptScore W4288045130C111368507 @default.
• W4288045130 hasConceptScore W4288045130C126753816 @default.
• W4288045130 hasConceptScore W4288045130C127313418 @default.
• W4288045130 hasConceptScore W4288045130C136894858 @default.
• W4288045130 hasConceptScore W4288045130C151730666 @default.
• W4288045130 hasConceptScore W4288045130C153018869 @default.

• next