Abstract:

This dataset contains isotopic composition (13C, 15N and 14C), %C and %N of sedimentary organic carbon data collected aboard the R/V Point Sur cruise PS18-25 in the central Gulf of Mexico from 2018-05-18 to 2018-05-23. Data on stable isotopes was acquired with a Costech elemental analyzer coupled to a Thermo Finnegan Delta Xp isotope ratio mass spectrometer. The dataset contains the location, depth, date of the sample collection, isotope ratios and percentages. The cruise documentation was provided for the R/V Point Sur cruise PS18-25, led by chief scientist Dr. Arne Diercks.

Suggested Citation:

Jeff Chanton. 2019. Isotopic composition (13C, 15N and 14C), %C and %N of sedimentary organic carbon collected aboard the R/V Point Sur cruise PS18-25 in the central 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/n7-5xgs-mg78

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:

To determine if petrocarbon deposition was re-suspended from up slope and redeposited in these deeper areas.

Data Parameters and Units:

Label (MC = multi-core, GC = gravity core); Collection date (DD/MM/YYYY); LAT (Latitude, decimal degrees); LON (Longitude, decimal degrees); Depth (Water depth in meters); d13C (carbon isotopic composition of the organic matter); d15N (15N isotopic composition of the organic matter); %C (% carbon by weight); %N (% nitrogen by weight); ID (internal laboratory ID); D14C (radiocarbon content in delta 14C units); Accession #; Receipt #; F Modern (Fraction Modern); Fm Err (Fraction Error); Age; Age Err (Age error). Note: Empty cells denote no measurements. NOSAMS = National Ocean Sciences Accelerator Mass Spectrometry Facility. For further details please refer to https://www.whoi.edu/nosams/general-statement-of-14c-procedures

Instruments:

Data on isotopes was acquired with a Costech elemental analyzer coupled to a Thermo Finnegan Delta Xp isotope ratio mass spectrometer.

Individual Files: