Abstract
This dataset contains concentrations and ratios of oil compounds (e.g., n-alkanes, isoprenoids, polycyclic aromatic hydrocarbons (PAHs), hopanes, and steranes) analyzed from crude oil biodegradation experiments using shallow and deep northern Gulf of Mexico sediments.
Purpose
To study the influence of pressure on rates and patterns of crude oil biodegradation.
Keywords
Crude oil, biodegradation, high pressure, Deepwater Horizon
UDI
R4.x267.000:0052
Date
October 2017
Point of Contact
Name
Katherine Haines Freeman
Organization
Pennsylvania State University / Department of Geosciences
Name
Sara Lincoln
Organization
Pennsylvania State University / Department of Geosciences
Funding Source
RFP-4
DOI
10.7266/N7833QFK
Rights Information
This work is licensed under a
Creative Commons Public Domain Dedication 1.0 License.
Scholar Commons Citation
Sara Lincoln, Katherine Freeman. 2017. Organic geochemical analysis of crude oil biodegradation experiments using northern Gulf of Mexico sediments collected from sites at 60m to 1500m water depth. Distributed by: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC), Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7833QFK
Comments
Extent
Dataset contains laboratory measurements of oil degradation, sediments were collected from sites in the northern Gulf of Mexico.
Supplemental Information
Sediment #, Sample number, Reactor/dummy, Cruise, Site, Horizon (mm), Water depth = depth that sediment was collected (m), Latitude = latitude where sediment was collected (decimal degrees), Longitude = longitude where sediment was collected (decimal degrees), CTD bottom water T = temperature at bottom of water column measured by CTD (deg C), CTD bottom water O2 = oxygen concentration at bottom of water column measured by CTD (umol/kg), Incubation temperature (Cooling Chamber at 4°C, I = Incubator at 10°C, RT - Room Temperature), P initial = initial pressure in reactor measured (bar), P final = final pressure in reactor (bar), Total organic carbon (TOC, weight %), Carbonate content (weight %), concentrations of : C13 to C40 n-alkane, pristane , C2-C4 naphthalene , C1-C3 fluorene phenanthrene - C4-phenanthrene, dibenzothiophene-C3-diobenzothiophene, C1-C3 pyrene, 11H-benzoF, chrysene - C3 chrysene in nanograms in sediment and water for each sample; peak area of C30-hopane and C26-triaromatic sterane; peak high of alkylated PAHs GCMS peak area |Experiment was run from 10/10/2014-10/28/2014 Laboratory incubation of sediments with crude oil Extraction of sediments with 9:1 Dichloromethane: Methanol Silica gel column chromatography Gas chromatography – mass spectrometry Acid digestion Leco Carbon/Sulfur analyzer| GCMS, Leco Carbon/Sulfur Analyzer||GCMS: We report % variability for internal and external standards run daily during analysis|