节点文献

U₃₇^K,δ¹⁸O沉积地层记录:南海北部末次盛冰期以来SST和海面变化

Stratigraphic record of U₃₇^K,δ¹⁸O: SST and sea level change in the northern part of South China Sea since the last glacial period

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 LU Bing~(1,2 ), ZHOU Huai-yang~3,LU Dou-ding~(1,2),ZHANG Wei-yan~(1,2),ZHU Chun~(1,2) (1.Key Lab of Submarine Geo Science of State Oceanic Administration, Hangzhou 310012, China; 2.Second Institute of Oceanography, Stute Oceanic Administration, Hangzhou 310012, China; 3.Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640,China)

【机构】国家海洋局海底科学重点实验室,中国科学院广州地球化学研究所,国家海洋局海底科学重点实验室,国家海洋局海底科学重点实验室,国家海洋局海底科学重点实验室浙江杭州310012；国家海洋局第二海洋研究所,浙江杭州310012,广东广州510640,浙江杭州310012；国家海洋局第二海洋研究所,浙江杭州310012,浙江杭州310012；国家海洋局第二海洋研究所,浙江杭州310012；

【摘要】应用UK37和δ18O重建末次盛冰期以来海水古温度和海平面变化,UK37 -SST沉积记录表现了冰期/间冰期模式.UK37 -SST在冰后期23 3~26 9℃;末次盛冰期22 2~23 8℃.末次盛冰期时古温度比目前平均低4 7℃,南海北部季节性温差冰后期在4 5 ~7 0℃;末次盛冰期在7 0 ~9 0℃,远远超过同一纬度太平洋季节温差.末次冰期以来在气候降温的同时,伴有海平面下降,气候的冷暖交替对海平面变化具有决定性的控制意义.更多还原

【Abstract】 Past sea surface temperature（SST） and sea level change are reconstructed for the last glacial period （using） the U^K₃₇ and δ¹⁸O. The U^K₃₇-SST was 23.3～26.9 ℃ in the Post Glacial Period and 22.2～23.8 ℃in the last glacial period, respectively.On the average the temperature in the last glacial period is 4.7 ℃ lower than that in present time. The seasonal difference of temperature was from 4.5 to 7.0 ℃in the Post Glacial Period and 7.0 to （9.0 ℃）in the last glacial period, much higher than that observed at the same latitudes in the Pacific Ocean. The temperature has been decreasing while the sea leave descending during the last glacial period. Sea level change is completely controlled by the alternation of cold and warm climate.更多还原