Data Release
Radiocarbon Dates and Foraminiferal Geochemistry Data for Sediment Core Collected from Garrison Basin, Gulf of Mexico
By Kaustubh Thirumalai,1 Julie N. Richey,2 Terrence M. Quinn,3,4 and Caitlin E. Reynolds2
1 Department of Geosciences, University of Arizona, Tucson, AZ, USA
2 U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, USA
3 Institute for Geophysics, University of Texas at Austin, Austin, TX, USA
4 Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX, USA
Summary
Stable oxygen and carbon isotope composition (δ18O and δ13C) and magnesium-to-calcium (Mg/Ca) ratios were measured in the tests of planktic foraminiferal species, Globigerinoides ruber (white variety), in a northwestern Gulf of Mexico sediment core 2010-GB2-GC1 collected from the Garrison Basin (26.67°N, 93.92°W) at a water depth of 1776 meters (m), aboard the R/V Cape Hatteras in April 2010. These measurements are used to generate sub-centennial-scale reconstructions of sea surface temperature (SST) and the stable oxygen isotope composition of seawater (δ18Osw; a proxy for changes in salinity) over the past 11,700 years. For further information regarding data collection and/or processing methods, refer to the associated journal article (Thirumalai and others, 2021).
Thirumalai, K., Richey, J.N., and Quinn, T.M., 2021, Holocene evolution of sea-surface temperature and salinity in the Gulf of Mexico: Paleoceanography and Paleoclimatology, v. 36, no. 8, art. e2021PA004221, 24 p., https://doi.org/10.1029/2021PA004221.
Data
| File Name and Description | Metadata (XML format) | Metadata (text format) | Download File |
|---|---|---|---|
| Radiocarbon_dates.zip This file contains the 14 raw radiocarbon dates that were used to generate the age model for this sediment core (.xlsx, .csv) |
Radiocarbon_dates_foram_ geochem_metadata.xml |
Radiocarbon_dates_foram_ geochem_metadata.txt |
Radiocarbon_dates.zip (20 KB) |
| Foram_geochemistry.zip This file contains the downcore Mg/Ca, δ18O and δ13C measurements for the Garrison Basin (.xlsx, .csv) |
Same as above | Same as above | Foram_geochemistry.zip (37 KB) |
Figure 1. Map of the Gulf of Mexico showing the location of the Garrison Basin (26.67 °N, 93.92 °W)
Suggested Citation
Thirumalai, K., Richey, J.N., Quinn, T.M., and Reynolds, C.E., 2021, Holocene sea-surface temperature and salinity in the Gulf of Mexico: U.S. Geological Survey data release, https://doi.org/10.5066/P9Q5L9VU.