Innovative understanding in the geological research of China seas and adjacent regions- based on the 1:1000000 marine regional geological survey

1. Objectives The China sea and their adjacent regions are the key areas for establishing the “21st Century Maritime Silk Road” and building a community of marine destiny and promoting sustainable development （Shang LN et al., 2021）. Marine regional geological surveys are systematic surveys involving geology, geophysics, geochemistry, remote sensing, and marine sedimentary dynamic environments on specific scales.