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Helium and Oxygen isotopic evidence on exchange of waters between the western Pacific Ocean and the South China Sea
Authors:Ren Jianguo and Wang Xianbin
Affiliation:Department of Oceanology, Xiamen University, Xiamen 361005, China College of Marine Geosciences, Ocean University of Qingdao, Qingdao 266003, China;Lanzhou Institute of Geology, CAS, Lanzhou 730000, China
Abstract:The composition and distribution of helium and oxygen isotopes in samples of seawater obtained at depths from surface to 300 m in the western Pacific(7°-26°N,122°-130°E) were discussed in detail.The results show that both δ18O and δ3He isoline extend eastward in the Pacific side of the Bashi Channel, which may suggest that the South China Sea water intrudes into the western Pacific by the Bashi Channel.
Keywords:The western Pacific Ocean   δ18O   δ3He   distribution   mixing
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