Utilizing seawater samples collected during the summer of 2025 in the Dingzi Bay region, South Yellow Sea, this study conducted a comprehensive analysis of the contents and concentrations of dissolved gases (N2, O2, Ar, CO2) and hydrocarbon gases (such as methane, ethane, and propane). The findings reveal that the dissolved gases in the study area are predominantly composed of N2 and O2, with average proportions of 77.8% and 2...

The Okinawa Trough (OT), a typical back-arc basin in the western Pacific, preserves continuous sedimentary records since the Quaternary, making it a critical area for investigating sea-level changes, source-to-sink processes, and paleoclimate evolution. However, the controlling mechanisms of terrestrial input to the trough since the Last Glacial Maximum (LGM) remain insufficiently understood. This study conducted major element...