Abstract
The high-resolution analysis on the carbon and oxygen isotopes and planktonic foraminifera of core SA12-19 dated with 14 C approach in the Xisha Trough of South China Sea indicates that sediments are attributed to oxygen isotope stages 1—3 (stage 3 is not included completely), during the late-glacial to post-glacial periods. The sea surface temperature (SST) of each sample is calculated based on palaeoecological transfer functions (FP-12E). The results reveal a gradual thermocline increase in this area during oxygen isotope stages 1—3 e.g. a temporal thermocline deepening in the middle Holocene. During the Holocene, the SST was 23.3—27.2℃ in winter, 28.8—29.8℃ in summer. During oxygen isotope stage 2, the SST was 21.4—24.4℃ in winter, 28.1—29.0℃ in summer; and 21.9—25.2℃ in winter, 28.5—29.3℃ in summer during oxygen isotope stage 3. The SST in winter during oxygen isotope stage 2 was 2—6℃ lower than that of stage 3. During the transitional period, a “Younger Dryas Event”, standing for a rapid climate return, occurred obviously.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
