Tian Jun et al. (2005): Astronomically tuned time scale (12 Ma to 18.3 Ma) for ODP Site 1148, northern South China Sea

Leg/Site/Hole:
ODP 184
ODP 184 1148
Identifier:
2009-041316
georefid
Creator:
Tian Jun
Tongji University, State Key Laboratory of Marine Geology, Shanghai, China
author
Wang Pinxian
author
Cheng Xinrong
author
Li Qianyu
author
Identification:
Astronomically tuned time scale (12 Ma to 18.3 Ma) for ODP Site 1148, northern South China Sea
2005
Earth Science. Journal of China University of Geoscience
China University of Geoscience, Wuhan, China
30
5
513-518
Lithological 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.
Chinese
Serial
Coverage:Geographic coordinates:
North:18.5010
West:116.3356East: 116.3356
South:18.5010
Stratigraphy; Cenozoic; cycles; Leg 184; magnetic properties; magnetic susceptibility; magnetostratigraphy; middle Miocene; Miocene; Neogene; North Pacific; Northwest Pacific; Ocean Drilling Program; ODP Site 1148; Pacific Ocean; paleomagnetism; sedimentary rocks; South China Sea; Tertiary; time scales; West Pacific;
.