https://scholars.lib.ntu.edu.tw/handle/123456789/606231
標題: | Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia | 作者: | Vaucher R Dashtgard S.E Horng C.-S Zeeden C Dillinger A Pan Y.-Y Setiaji R.A Chi W.-R LUDVIG LOWEMARK |
公開日期: | 2021 | 卷: | 11 | 期: | 1 | 來源出版物: | Scientific Reports | 摘要: | Global marine archives from the early Pleistocene indicate that glacial-interglacial cycles, and their corresponding sea-level cycles, have predominantly a periodicity of ~ 41 kyrs driven by Earth’s obliquity. Here, we present a clastic shallow-marine record from the early Pleistocene in Southeast Asia (Cholan Formation, Taiwan). The studied strata comprise stacked cyclic successions deposited in offshore to nearshore environments in the paleo-Taiwan Strait. The stratigraphy was compared to both a δ18O isotope record of benthic foraminifera and orbital parameters driving insolation at the time of deposition. Analyses indicate a strong correlation between depositional cycles and Northern Hemisphere summer insolation, which is precession-dominated with an obliquity component. Our results represent geological evidence of precession-dominated sea-level fluctuations during the early Pleistocene, independent of a global ice-volume proxy. Preservation of this signal is possible due to the high-accommodation creation and high-sedimentation rate in the basin enhancing the completeness of the stratigraphic record. ? 2021, The Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113138494&doi=10.1038%2fs41598-021-96372-x&partnerID=40&md5=3771bc13e212dad30b0fe0c73fcef120 https://scholars.lib.ntu.edu.tw/handle/123456789/606231 |
ISSN: | 20452322 | DOI: | 10.1038/s41598-021-96372-x |
顯示於: | 地質科學系 |
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