Late Pleistocene Carbon Isotope Stratigraphy in the Western Pacific

建议：为赤道西太平洋两个活塞芯的浮游有孔虫球囊有孔虫和底栖有孔虫Wuellerstorfi的C-13同位素分析提供资金。这将提供过去350至400千米期间地表和深水中总溶解无机碳的变化记录。PI计划将这些记录与过去160年的大气二氧化碳冰芯记录进行比较。目的是确定更新世期间净生物生产力和深海环流的变化模式。这项研究是高级PIS关于三角洲C-13的盒子建模工作的继续，为一名研究生提供额外的两年资金将使其能够完成这项重要的工作。

Recommendation: Funds are provided for C-13 isotopic analysis of planktonic foraminifera sacculifer and benthic foram wuellerstorfi in two piston cores from the western equatorial pacific. This will provide arecord of surface and deep water changes in total dissolved inorganic carbon for the past 350 to 400 k.yrs. The PIs plan to compare these records to the ice- core records of atmospheric CO2 of the last 160.yrs. with the objective to determine patterns of change of net biological productivity and deep ocean circulation during the Pleistocene. The study is a continuation of the senior PIs work on the box modelling of delta C-13 and additional two years funding for a graduate student will allow the completion of this important work.