Temporal variations in the marine radiocarbon reservoir effect during the Holocene – a review

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dc.contributor.authorHua, Qen_AU
dc.date.accessioned2023-03-30T22:46:24Zen_AU
dc.date.available2023-03-30T22:46:24Zen_AU
dc.date.issued2022-12-06en_AU
dc.date.statistics2023-03-30en_AU
dc.description.abstractThis paper presents a review of spatial and temporal radiocarbon (14C) variations in the surface ocean for the Tropical and South Pacific. Radiocarbon has been recognised as a powerful transient tracer for the study of ocean circulation, and its variations associated with environmental and climatic changes. Investigation of radiocarbon changes in the surface ocean with time and space, thus, not only is crucial for accurate dating of marine samples but also delivers useful information on the carbon cycle and climatic systems. Accurate and reliable dating of marine samples (e.g., shells, corals, coralline algae and foraminifers), is increasingly critical for correlating them with terrestrial and ice-core records, and consequently for better understanding of palaeoclimate. The dating, however, is not straightforward and involves estimates of the marine radiocarbon reservoir effect (or simply the marine reservoir effect, MRE), an aging effect of the surface ocean relative to the atmosphere. Traditionally, for a given location or region the MRE is generally assumed to be constant through time and its modern, pre-1950 value is used for calibrating marine 14C ages. However, there is growing evidence that the effect is not constant but varies with time. Temporal MRE variability has been reported for a number of oceans and seas during the late Quaternary and Holocene. For the Tropical and South Pacific, large temporal changes in the MRE of several hundred to almost a thousand of years during the Holocene were documented for a number of sites across the basin. Mechanisms of these changes, and their implications for climate variability and changes in ocean circulation are discussed.en_AU
dc.identifier.citationHua, Q. (2022). Temporal variations in the marine radiocarbon reservoir effect during the Holocene – a review. Paper presented to the AQUA 2022 Conference, 6-8th December, Adelaide (pp. 57). Retrieved from: https://aqua.org.au/conference/aqua-2022/aqua-2022-conference-program-and-abstracts/en_AU
dc.identifier.conferenceenddate8 December 2022en_AU
dc.identifier.conferencenameAQUA 2022 Conferenceen_AU
dc.identifier.conferenceplaceAdelaideen_AU
dc.identifier.conferencestartdate6 December 2022en_AU
dc.identifier.otherABN 78458664047en_AU
dc.identifier.pagination57en_AU
dc.identifier.urihttps://aqua.org.au/conference/aqua-2022/aqua-2022-conference-program-and-abstracts/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14767en_AU
dc.language.isoenen_AU
dc.publisherAustralasian Quaternary Associationen_AU
dc.subjectCarbon 14en_AU
dc.subjectSurface areaen_AU
dc.subjectSeasen_AU
dc.subjectTransientsen_AU
dc.subjectCoralsen_AU
dc.subjectForaminiferaen_AU
dc.subjectShellsen_AU
dc.subjectVariationsen_AU
dc.titleTemporal variations in the marine radiocarbon reservoir effect during the Holocene – a reviewen_AU
dc.typeConference Paperen_AU
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