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对冲绳海槽南部表层沉积和晚第四纪沉积柱状样中百余个样品进行了浮游及底栖有孔虫、翼足类等微体化石定量分析。通过表层沉积样品中底栖有孔虫占有孔虫全群比例、底栖有孔虫群中胶结质壳比例、浮游有孔虫碎壳率和浮游及底栖有孔虫丰度等多种标志的水深变化，确定冲绳海槽现代的碳酸盐溶跃面位于水深１５００～１６００ｍ处。进而，在高分辨率地层学基础上，检验这些指示溶解作用的标志和翼足类丰度等在柱状样中的变化，结果发现末次冰期冲绳海槽碳酸盐溶解作用显著减弱，碳酸盐溶跃面和文石补偿深度急剧变深；至冰后期碳酸盐溶解作用又急剧增强，溶跃面和文石补偿深度又变浅至与现代相当的位置。这些变化与南海等西太平洋其他海区的特征相一致。
Over a hundred samples from the surface sediments of the southern Okinawa Trough and the Late Quaternary sedimentary column samples were analyzed for the metamorphosis of fossils such as planktonic and foraminiferous fossils. Through the sedimentary samples, the benthic foraminiferal population proportion of the total foraminifer, the proportion of the foraminiferal shell in the benthic foraminiferal group, the broken shell rate of planktonic foraminifera and the abundance of planktonic and benthic foraminifera The change of water depth determines that the modern carbonate flooding surface of the Okinawa Trough is located at a water depth of 1500-1600 m. Furthermore, based on the high-resolution stratigraphy, the changes in the columnar samples of these indicators indicating dissolution and the abundance of the wingfoot were examined. As a result, the carbonate dissolution in the Okinawa Trough in the last glacial period was significantly weakened. The carbonate The depth of dissolution surface and aragonite compensation depth sharply deepened; the dissolution of carbonate dissolved in the late ice period increased sharply again, and the depth of solution surface and aragonite compensation became shallow to the position equivalent to the modern one. These changes are in line with the characteristics of the South China Sea and other western seas.