Millennial-scale sedimentary DMSP and biomarker dataset from a typical coastal sediment core of China

This dataset contains millennial-scale sedimentary DMSP and biomarker records from a typical coastal sediment core in China. The dataset includes sedimentary DMSP concentrations, lithological parameters, age constraints, and multiple lipid biomarkers used for reconstructing organic matter sources and paleoenvironmental changes. These data support the interpretation of millennial-scale variations in sedimentary DMSP dynamics, their potential sources, and their implications for carbon‑sulfur coupling processes in coastal marine sediments over the late Quaternary. The data provide a high-resolution record for understanding the biogeochemical cycling of organic sulfur compounds and their links to climate and environmental change in coastal marginal sea systems.