SGER: Exploring Linkages Between Indonesian Gateway Closure and Sea-Level Change During the Middle to Late Miocene

这项研究探索了利用动物群和地球化学指标来研究海平面波动和构造过程在印度尼西亚海道上的相互作用以及对西太平洋暖池早期发展的相关影响。这项研究将利用浮游有孔虫种群的统计分析和多种浮游有孔虫的同位素测量来重建中新世中晚期(约13.5-6.0 Ma)关键时段的上水柱结构、生产力和季节性。将利用底栖和浮游有孔虫的镁/钙测量来估计冰量和地表水盐度对氧同位素记录的影响。

This research explores the use of faunal and geochemical proxies to investigate the interactions of sea level fluctuations and tectonic processes on the Indonesian Seaway and associated effects on the early development of the western Pacific warm pool. The study will use statistical analyses of planktic foraminifer populations and isotope measurements on multi-species of planktic foraminifers to reconstruct upper water column structure, productivity and seasonality for key intervals during the middle to late Miocene (ca 13.5 - 6.0 Ma). Mg/Ca measurements on benthic and planktic foraminifers will be used to estimate the influences of ice volume and surface water salinity on the oxygen isotope record.