Abstract:

This dataset contains bulk density/porewater of sediment cores collected aboard R/V Point Sur cruise PS18-25 in the northern Gulf of Mexico (NGOM) from 2018-05-18 to 2018-05-23. The dataset contains the sample collection date and location, water depth, site ID, core ID, top depth of interval (mm), bottom depth of interval (mm), average depth of interval (mm), wet weight (g), dry weight (g), sample volume (cm3), bulk density (g/cm3), and percent pore water. It reports measurement of sediment sample wet weight (g) and dry weight (g) for core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to the base of cores. Bulk density is the dry weight per sampling volume expressed as g/cm3 and is utilized in the calculation of Mass Accumulation Rates (MAR’s). The cruise documentation was provided for the R/V Point Sur cruise PS18-25, led by chief scientist Dr. Arne Diercks.

Suggested Citation:

Brooks, Gregg R., and Larson, Rebekka A.. 2019. Bulk density/porewater of sediments collected aboard R/V Point Sur cruise PS18-25 in the northern Gulf of Mexico from 2018-05-18 to 2018-05-23. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-gzhr-0s83

Publications:

Diercks, A. R., Romero, I. C., Larson, R. A., Schwing, P., Harris, A., Bosman, S., … Brooks, G. (2021). Resuspension, Redistribution, and Deposition of Oil-Residues to Offshore Depocenters After the Deepwater Horizon Oil Spill. Frontiers in Marine Science, 8. doi:10.3389/fmars.2021.630183

Purpose:

Measure bulk density and porewater data from sediment cores.

Data Parameters and Units:

Latitude of core site in decimal degrees Longitude of core site in decimal degrees Water depth of core site in meters (m) Core collection Date (MM/DD/YYYY) Site Identification (ID) Core Identification (ID) Top Depth of Interval in millimeters (mm) Bottom Depth of Interval in millimeters (mm) Average Depth of Interval in millimeters (mm), average of Top and Bottom Depths Sediment Wet Weight in grams (g) Sediment Dry Weight in grams (g) Sampling Volume (cm3) Bulk Density (g/cm3); calculated using sediment dry weight (g) and sample volume (cm3) % Porewater (by weight); calculated using sample wet weight (g) and sample dry weight (g). Laboratory/Facility analysis was performed (Eckerd College, St. Petersburg FL). Please note that blank cell denotes analysis not performed for the interval, and no data generated.

Individual Files: