Thirty million year deep-sea records in the South China Sea

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doi: 10.1360/03wd0154
Author(s): Wang Pinxian; Zhao Quanhong; Jian Zhimin; Cheng Xinrong; Huang Wei; Tian Jun; Wang Jiliang; Li Qianyu; Li Baohua; Su Xin
Author Affiliation(s): Primary:
Tongji University, Shanghai, China
Other:
Chinese Academy of Sciences, China
Geoscience University of China, China
Volume Title: Chinese Science Bulletin
Source: Chinese Science Bulletin, 48(23), p.2524-2535. Publisher: Science Press, Beijing, China. ISSN: 1001-6538
Note: In English. 44 refs.; illus., incl. 4 tables
Summary: In the spring of 1999 the Ocean Drilling Program (ODP) Leg 184 Shipboard Party cored 17 holes at 6 deep water sites in the northern and southern parts of the South china Sea (SCS). Chinese scientists actively participated in the entire process of this first deep-sea drilling leg off China, from proposal to post-cruise studies. More than 30 categories of analyses have been conducted post-cruise in various Chinese laboratories on a large number of core samples, and the total number of analyses exceeded 60 thousand. The major scientific achievements of the Leg 184 studies are briefly reported in three successive papers, with the first one presented here dealing with deep-sea stratigraphy and evolution of climate cycles. This ODP leg has established the best deep-sea stratigraphic sequences in the Western Pacific: the 23-Ma isotope sequence from the Dong-Sha area is unique worldwide because of its continuity; the last 5-Ma sequence from the Nansha area represents on of the best 4 ODP sites worldwide with the highest time-resolution for that time interval, and the sequences of physical properties enable a decadal-scale time resolution. All these together have provided for the first time high-quality marine records for paleoenvironmental studies in the Asian-Pacific region. This new set of stratigraphic records has revealed changes in climate cyclicity over the last 20 Ma with the fluctuating power of the 100 ka, 400 ka, 2000 ka eccentricity cycles, indicating the evolving response of the climate system to orbital forcing along with the growth of the Antarctic and Northern Hemisphere ice sheets.
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Biostratigraphy; Cenozoic; Deep drilling; Dongsha Islands; Drilling; Foraminifera; Invertebrata; Leg 184; Microfossils; Nannofossils; Nansha; North Pacific; Northwest Pacific; Ocean Drilling Program; Oligocene; Pacific Ocean; Paleo-oceanography; Paleoclimatology; Paleoecology; Paleoenvironment; Paleogene; Plantae; Protista; Sequence stratigraphy; South China Sea; Spratly Islands; Tertiary; West Pacific; West Pacific Ocean Islands
Coordinates: N092143 N092143 E1131707 E1131707
N200311 N200311 E1172508 E1172508
Record ID: 2004046076
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