Paleomagnetic and astronomical dating of sediment core BH08 from the Bohai Sea, China: Implications for glacial-interglacial sedimentation
- Yao, Z.
- Shi, X.
- Liu, Q.
- Liu, Y.
- Larrasoaña, Juan C.
- Liu, J.
- Ge, S.
- Wang, K.
- Qiao, S.
- Li, X.
- Shi, F.
- Fang, X.
- Yu, Y.
- Yang, G.
- Duan, Z.
DOIAbstract
Sediments from the continental shelf/coastal region bear significant signals of sea-level, climate change as well as local tectonic information. This study presents a high-resolution magnetostratigraphic and rock magnetic study of a 212.4m core (BH08, with a basal age of 1.06Ma) recovered from the shallow (<30m below sea level) Bohai Sea, China. Astronomical tuning based on the sediment redness (a*) of core BH08 allows the construction of a high-resolution chronology that is assisted by magnetostratigraphic data. Sedimentology and associated proxies (grain size and redness) indicate that the cyclic alternation of neritic/littoral sandy deposits and terrestrial silts/clayey silts was mainly controlled by changes in sea-level and associated b...
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