4:30 PM - 4:45 PM
[MIS23-17] Uranium in Corals provide the clue to solve the Quaternary chronology logjam
Keywords:Quaternary chronology , Coral, Uranium series nuclides
It is relies on the following radioactive decay chain:
238U (4.5x10^9 yr) -> 234Th (24 days) -> 234U (2.5 x 10^5 yr) ->230Th (7.5x10^4 yr)
Deep-sea corals do not provide sea level information but appear to be responsive to ocean circulation changes and continental riverine and ice-sheet meltwater inputs to the oceans (Chen et al., 2016 Science).
In this presentation, we introduce recent debate with regards to uranium isotopes in ocean and discuss the reliable method to conduct U-series dating. Also consequence on the topic related to the phase relations of climate sub-systems are discussed.