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U37K,δ18O沉积地层记录:南海北部末次盛冰期以来SST和海面变化

, PP. 70-77

Keywords: 南海,U37K,δ18O,古温度,海平面变化

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Abstract:

应用U37K和δ18O重建末次盛冰期以来海水古温度和海平面变化,U37K-SST沉积记录表现了冰期/间冰期模式.U37K-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.

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