选择冲绳海槽西部陆坡第四纪以来发育的陆架坡折开展地震地层与沉积学、沉积-地貌学、构造地层学等多学科交叉研究，查明冲绳海槽西部陆坡海底峡谷体系的沉积结构特征与地貌发育演化过程，阐明陆坡海底峡谷体系形成演化的主要控制因素，分析源-汇体系及天然气水合物圈闭的有利区带，建立冲绳海槽西部陆坡的发育演化模式并揭示其对地球动力学、海平面及古气候变化的响应关系。.项目研究将基于冲绳海槽西部陆坡的道高分辨地震剖面和相关地质资料，通过精细的多层次沉积地质结构静态解析、地震沉积-地貌刻画、年代地层和物源分析和沉积古地理编图研究，聚焦于冲绳海槽西部陆坡海底峡谷体系发育演变及其与冲绳海槽形成演化的动力学成因关系这一关键科学问题，为冲绳海槽的形成演化研究和东海陆架坡折带的天然气水合物勘探提供重要基础。

It develops a giant quaternery shelf-slope break zone extending more than a thousand km along the western margin of The Okinawa trough . The project is attempted to investigate the development and evolution of the continental slope through the comprehensive study of sequence stratigraphy, seismic geomorphology, tectono-stratigraphy, and depositional geochemistry. The study is aimed to document the characteristics of the depositional architecture of submarine canyon system in the continental slope zone, depositional geomorphology, source and sink system, distribution of favorable gas hydrate traps. The study will focuses on revealing the response of the evolution of the slope system to the basin geodynamic setting, sea level change and sediment supply. The datas includes the large amount of high resolution seismic and borehole datas from government marine resource survey. The analysis techniques adapted in the project mainly include detail examinations of the seismic profile, chronostratigraphic test and palaeogeographic analysis.