海洋学报（英文版）
海洋學報（英文版）
해양학보（영문판）
ACTA OCEANOLOGICA SINICA
2008年
2期
30-34
,共5页
natural thermolumineseence%foraminiferal%glacial-interglacial cycle%northeastern Indian Ocean
Foraminiferal shells from two piston cores separately located at the Ninetyeast Ridge and the Bengal Fan of the Indian Ocean were selected and purified for measurements of natural thermoluminescence (NTL) intensity by a high precision thermoluminescence meter ( RGD-3 ).Variations of the NTL intensity along the two core sequences both spanning the last two glacial-interglacial cycles displayed a strong,identical signal of the global ice volume cycles,which matched well with their corresponding oxygen isotope data.As higher NTL intensity occurred within interglacial periods and changes in an NTL signal were most likely influ-enced by the temperature of ambient seawater in which the planktonic foraminiferal shells long existed,the NTL signal could be considered as a potential proxy for orbital scale temperature changes of bottom seawater in the tropical Indian Ocean.
