Abstract:

This dataset reports trace element enrichment trends during the past century using 210Pb-dated sediment cores from 2015-07-31 to 2016-08-10. Ten 210Pb-dated sediment cores from the southern Gulf of Mexico were collected during the R/V Justo Sierra-Southern Gulf and Ixtoc I cruise, and three sediment cores were collected during C-IMAGE II coastal Mexico oiling summer sampling. The data include trace elements (Na, Al, Si, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Br, Sr, Mo, Ba, and Pb), percent loss-on-ignition, sand, clay, and silt. The R/V Justo Sierra-Southern Gulf and Ixtoc I cruise goal was to characterize the distribution and fate of oiled sediment at sites on the continental shelf and slope of the southern Gulf of Mexico with reference to the Ixtoc blowout (1979-1980). The cruise was led by chief scientist Dr. David Hollander from 2015-07-29 to 2015-08-11. This dataset supports the publication: Ruiz-Fernández, A. C., Sanchez-Cabeza, J. A., Pérez-Bernal, L. H., & Gracia, A. (2019). Spatial and temporal distribution of heavy metal concentrations and enrichment in the southern Gulf of Mexico. Science of The Total Environment, 651, 3174–3186. doi:10.1016/j.scitotenv.2018.10.109

Suggested Citation:

Ruiz-Fernández A. C., Pérez-Bernal L. H., Sanchez Cabeza J.A.. 2019. Trace metals in sediment cores collected during the R/V Justo Sierra cruise and coastal sampling in the southern Gulf of Mexico from 2015-07-31 to 2016-08-10. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-7bcg-yk08

Publications:

Ruiz-Fernández, A. C., Sanchez-Cabeza, J. A., Pérez-Bernal, L. H., & Gracia, A. (2019). Spatial and temporal distribution of heavy metal concentrations and enrichment in the southern Gulf of Mexico. Science of The Total Environment, 651, 3174–3186. doi:10.1016/j.scitotenv.2018.10.109

Brooks, G. R., Larson, R. A., Schwing, P. T., Diercks, A. R., Armenteros, M., Diaz-Asencio, M., … Hollander, D. J. (2019). Gulf of Mexico (GoM) Bottom Sediments and Depositional Processes: A Baseline for Future Oil Spills. Scenarios and Responses to Future Deep Oil Spills, 75–95. doi:10.1007/978-3-030-12963-7_5

Ruiz-Fernández, A. C., Rangel-García, M., Pérez-Bernal, L. H., López-Mendoza, P. G., Gracia, A., Schwing, P., … Sanchez-Cabeza, J. A. (2019). Mercury in sediment cores from the southern Gulf of Mexico: Preindustrial levels and temporal enrichment trends. Marine Pollution Bulletin, 149, 110498. doi:10.1016/j.marpolbul.2019.110498

Purpose:

To evaluate the impact of the offshore oil industry on the coastal-marine environment.

Data Parameters and Units:

File R4-x267-000-0115.csv: sediment core label (core id and depth interval), trace elements (Na, Al, Si, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Br, Sr, Mo, Ba and Pb; μg g-1), loss-on-ignition (LOI, %), sand (%), clay (%) and silt (%). File SAMPLING DATA2-GRIIDC.xlsx: core id, sampling date (mm/dd/yyyy), latitude (degrees minutes), longitude (degrees minutes), water depth (m), core length (cm), research cruise information. Note: Label GOMRI-750 000-005 represents core id IXW750.

Methods:

Trace element concentrations (X-ray fluorescence spectrometry) 210Pb (Alpha Spectrometry)

Instruments:

Trace element concentrations (XRF, Xepos-3, Spetrolab) 210Pb (Alpha Spectrometry, Ortec Ensemble)

Individual Files: