Sediment texture and composition data collected aboard R/V Point Sur cruise PS18-25 in the northern Gulf of Mexico from 2018-05-18 to 2018-05-20

This dataset contains sediment texture and composition data collected aboard R/V Point Sur cruise PS18-25 in the northern Gulf of Mexico from 2018-05-18 to 2018-05-20. Three sites were sampled using a multi-corer between 1703 and 2381 m water depth. Sediment texture and composition data are generated for selected core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to the base of cores. Sediment texture values are expressed as % Gravel, % Sand, % Silt and % Clay as calculated by dry weight (g), % Mud is calculated by combining % Silt and % Clay. Sediment composition is expressed as % TOM (Total Organic Matter) measured by Loss on Ignition (LOI), % Carbonate content measured by acid leaching, and the % Insoluble Residue (IR), which is likely dominated by terrigenous clastic (land-derived) sediment sources.