georefid:2009-041316SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2009-041316Astronomically tuned time scale (12 Ma to 18.3 Ma) for ODP Site 1148, northern South China Sea2005-01-01publicationgeorefid:2009-041316
Tian JunTongji University, State Key Laboratory of Marine Geology, Shanghai, ChinaauthorWang PinxianauthorCheng XinrongauthorLi QianyuauthorChina University of Geoscience, Wuhan, ChinapublisherdocumentHardcopyEarth Science. Journal of China University of Geoscience30 (5)513-518Lithological cyclicity was observed in magnetic susceptibility records of the deep sea sediments from ODP Site 1184 in the northern South China Sea (SCS), and is considered to be related to obliquity cycles in the Miocene and Oligocene. Using recent methodology, an astronomically tuned time scale for the middle Miocene of ODP Site 1148 in the northern SCS was established. After tuning, the magnetic susceptibility (MS) records show strong obliquity and precession cycles as well as prominent eccentricity cycles. The planktonic foraminiferal events identified within the studied interval of ODP Site 1148 show ages very close to those set by Shackleton et al. (1999) for ODP Leg 154, which were obtained by the same astronomical tuning method used in this study, but differ substantially from the traditional age. The results lend support to the practicality of this method for establishing a tuned Miocene time scale.completedStratigraphyCenozoiccyclesLeg 184magnetic propertiesmagnetic susceptibilitymagnetostratigraphymiddle MioceneMioceneNeogeneNorth PacificNorthwest PacificOcean Drilling ProgramODP Site 1148Pacific Oceanpaleomagnetismsedimentary rocksSouth China SeaTertiarytime scalesWest Pacificurn:org.iodp:exp:184
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