De Lira Mota, Marcelo Augusto; Dunkley Jones, Tom; Sulaiman, Nursufiah; Edgar, Kirsty M; Yamaguchi, Tatsuhiko; Leng, Melanie J; Adloff, Markus; Greene, Sarah E; Norris, Richard D; Warren, Bridget; Duffy, Grace; Farrant, Jennifer; Murayama, Masafumi; Hall, Jonathan; Bendle, James A (2023): X-ray fluorescence data for the Mossy Grove sediment core [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.960404, In: De Lira Mota, MA et al. (2023): Micropaleontological and geochemical dataset of shallow-marine deposits in central Mississippi, US Gulf Coastal Plain [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.960394
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Abstract:
Elemental composition of the sediment core was determined using two XRF techniques. 2,098 samples on the original core section were directly analyzed at a resolution of ~1.2 cm across the interval 17.1-109.4 m with a hand-held XRF analyzer at the core store of the Mississippi Department of Environmental Quality, in Jackson, Mississippi. A further 179 samples were collected every 20-30 cm downcore, spanning the interval 106.8-151.6 m, and were subsequently finely ground and dried before analysis as pressed powders in wax pellets. Pellets were analyzed with a Bruker S8 TIGER XRF spectrometer with an 8 min analysis time, at the School of Chemistry, University of Birmingham. We selected the (Al+Fe+K+Ti)/Ca ratio as a paleoenvironmental indicator of terrigenous-derived versus marine planktonic carbonate sediment 79,80. The two methodologies were cross-calibrated over an interval of overlap between 106.8 and 109.4 m, with a total of ~80 samples, spanning a range of compositions, cross-correlated from both analysis methods.
Funding:
Coverage:
Latitude: 32.402000 * Longitude: -90.337000
Date/Time Start: 1991-08-19T00:00:00 * Date/Time End: 1991-09-05T00:00:00
Minimum DEPTH, sediment/rock: 12.2880 m * Maximum DEPTH, sediment/rock: 151.6380 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Age | Age | Ma | |||
| 4 | AGE | Age | ka BP | Geocode | ||
| 5 | Calcium | Ca | cts | X-ray fluorescence (XRF), hand-held analyzer | ||
| 6 | Aluminium | Al | cts | X-ray fluorescence (XRF), hand-held analyzer | ||
| 7 | Iron | Fe | cts | X-ray fluorescence (XRF), hand-held analyzer | ||
| 8 | Potassium | K | cts | X-ray fluorescence (XRF), hand-held analyzer | ||
| 9 | Titanium | Ti | cts | X-ray fluorescence (XRF), hand-held analyzer | ||
| 10 | Terrigenous/Calcium ratio | Terr/Ca | X-ray fluorescence (XRF), hand-held analyzer | cts | ||
| 11 | Calcium | Ca | % | X-ray fluorescence (XRF), pressed powder pellet | wt. % | |
| 12 | Aluminium | Al | % | X-ray fluorescence (XRF), pressed powder pellet | wt. % | |
| 13 | Iron | Fe | % | X-ray fluorescence (XRF), pressed powder pellet | wt. % | |
| 14 | Potassium | K | % | X-ray fluorescence (XRF), pressed powder pellet | wt. % | |
| 15 | Titanium | Ti | % | X-ray fluorescence (XRF), pressed powder pellet | wt. % | |
| 16 | Terrigenous/Calcium ratio | Terr/Ca | X-ray fluorescence (XRF), pressed powder pellet | wt. % |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
19208 data points
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