Neogene oxygen isotopic stratigraphy,ODP Site 1148,northern South China Sea

作     者：赵泉鸿 翦知湣 王吉良 成鑫荣 黄宝琦 徐建 周震 房殿勇 汪品先 

作者机构：1. Key Laboratory of Marine Geology Ministry of Education Tongji University 200092 Shanghai China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2001年第44卷第10期

页      面：934-942页

核心收录：

学科分类：070902[理学-地球化学] 0709[理学-地质学] 07[理学] 

基　　金：the National Natural Science Foundation of China (Grant No. 49999560) and the State Key Basic Research and Development Plan (Grant No. 2000078502) 

主　　题：oxygen stable isotope benthic foraminifera stratigraphy paleoceanography Neogene South China Sea 

摘      要：A detailed stable isotopic study based on benthic foraminifera from 1165 samples of ODP Site 1148 (18° 50.17.3’N, 116° 33.93’E, water depth 3308.3 m), northern South China Sea, provides an excellent oxygen isotopic record with an average resolution of 30 ka. It contains the most continuous δ18O data with highest resolution for the whole Neogene sequence in the world. The δ18O curve shows a step-like increasing upwards and records 5 increases, 3 decreases and 2 stable stages during the Neogene, reflecting the general trend of global cooling. Among these events the δ18O decrease at 17.2–14.5 Ma, and two δ18O increases at 14.5-13.6 and 3.0-2.4 Ma are most marked and globally comparable. The intervals at 13.6-10.2 and 6.0-3.0 Ma with the lowest-amplitude and least fluctuation in δ18O represent the most stable bottom water periods for the South China Sea.