GC-MS characterization of marine sediment cores collected onboard R/V Justo Sierra cruise JS-0815 in the southern Gulf of Mexico from 2015-08-03 to 2015-08-06

This dataset reports selected biomarker ratios in marine sediment cores using gas chromatography-mass spectrometry (GC-MS). Sediment cores were collected onboard R/V Justo Sierra cruise JS-0815 in the southern Gulf of Mexico from 2015-08-03 to 2015-08-06. Marine cores were sectioned at specific intervals, and freeze-dried. Hydrocarbons were extracted from Freeze-dried samples using a dichloromethane/methanol (9:1) mixture of solvents and extracts were analyzed using an Agilent 7890B gas chromatography-mass spectrometry (GC/MS) instrument attached to a 5977A mass detector. Data was used to prepare elected biomarker ratios in sediment cores from sampling sites in the southern Gulf of Mexico. Cruise documentation was provided for the R/V Justo Sierra cruise JS-0815. The cruise was led by chief scientists Dr. Steve Murawski and Dr. David Hollander.