Metagenomic Sequencing of Sediment Gravity Cores from the HYSH201901 Cruise in the Northern South China Sea

This project encompasses the collection and high-throughput metagenomic sequencing of three sediment gravity cores obtained during the HYSH201901 expedition organized by the Guangzhou Marine Geological Survey (February 26-March 6, 2019). Sediment cores were retrieved from the northern South China Sea (18.44-19.26 N, 114.25-115.30 E) at water depths ranging from 1250 m to 3530 m, with core lengths of 0-690 cm. Each sediment sample was sequenced on the MGI-SEQ-T7 platform, generating a minimum of 50 Gb of raw base data per sample. The resulting datasets will support comprehensive analyses of microbial community composition, functional potential, and biogeochemical cycling of carbon, nitrogen, and sulfur in deep-sea sediments.