The China–Indonesia Joint Geological and Geophysical Expedition officially launched on August 10, at Port of Tanjung Priok in Jakarta, Indonesia. Over 90 representatives from both Chinese and Indonesian institutions attended the event.

Jointly organized by SIO and BRIN, the expedition was conducted aboard the RV TKK. The cruise departed from Jakarta on August 11, marking the vessel’s first international joint expedition launched from a foreign port.

During the expedition, Chinese and Indonesian scientists jointly carried out a multidisciplinary survey in the Java Sea, including OBS and OBEM deployments, as well as seawater sampling and sediment coring. Through refined deck planning and well-coordinated operational sequencing, the onboard science team ensured a highly efficient task execution.

This cruise marked a milestone—China’s first successful active seismic surveys and controlled-source electromagnetic (CSEM) surveys performed on a 3,500-ton general-purpose research vessel.

Photos: Wenrui Yang, Fei Wang

Revised by MarOps