Varma, Devika; van der Meer, Marcel T J; Reichart, Gert-Jan; Schouten, Stefan (2024): The Mediterranean Sea and the Red Sea OHGDGT surface sediment data [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.969380
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Abstract:
We explore recently developed temperature proxies based on hydroxylated isoprenoid Glycerol Dialkyl Glycerol Tetraethers (OH-isoGDGTs), such as %OH, RI-OH, RI-OH' and TEX86OH for their potential for reconstructing temperature changes in the Mediterranean Sea and the Red Sea. These OH-isoGDGT-based proxies have not been adequately explored in these semi-enclosed basins. Here we explore the proxies derived from the OH-GDGTs from surface sediments from the Red Sea and Balearic Sea, and compile it with previously published data from the Gulf of Lions (Varma et al., 2023, doi:10.1016/j.gca.2023.12.019 (GCA)). The excel sheet contains information regarding the surface sediments, their location, enivironmental parameters from each location extracted from WOA and NISPP AVHRR database, peak area of iso-GDGTs and OH-isoGDGTs, proxy indices discussed in the study and references for previously published data. These surface sediments were previously explored for GDGT-based proxy, TEX86 and published along with the papers Trommer et al. (2009, doi:10.1016/j.orggeochem.2009.03.001), OG; and Kim et al. (2015, doi:10.1016/j.gca.2014.11.017), GCA.
Keyword(s):
Supplement to:
Varma, Devika; van der Meer, Marcel T J; Reichart, Gert-Jan; Schouten, Stefan (2024): Impact of water depth on the distributions and proxies of isoprenoidal hydroxylated GDGTs in the Mediterranean Sea and the Red Sea. Organic Geochemistry, 104780, https://doi.org/10.1016/j.orggeochem.2024.104780
Related to:
Varma, Devika; Hopmans, Ellen C; van Kemenda, Zoe R; Kusch, Stephanie; Berg, Sonja; Bale, Nicole Jane; Sangiorgi, Francesca; Reichart, Gert-Jan; Sinninghe Damsté, Jaap S; Schouten, Stefan (2023): Evaluating isoprenoidal hydroxylated GDGT-based temperature proxies in surface sediments from the global ocean. Geochimica et Cosmochimica Acta, S0016703723006403, https://doi.org/10.1016/j.gca.2023.12.019
Funding:
European Commission (EC), grant/award no. 847504: Local training network: Netherlands Earth System Science Centre: “NESSC”
Coverage:
Median Latitude: 37.612326 * Median Longitude: 12.804037 * South-bound Latitude: 15.560000 * West-bound Longitude: 2.200000 * North-bound Latitude: 43.400000 * East-bound Longitude: 82.357690
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Varma, Devika | At sampling site | ||
| 2 | Latitude of event | Latitude | Varma, Devika | At sampling site | ||
| 3 | Longitude of event | Longitude | Varma, Devika | At sampling site | ||
| 4 | Elevation of event | Elevation | m | Varma, Devika | At sampling site | |
| 5 | Sample code/label | Sample label | Varma, Devika | |||
| 6 | DEPTH, sediment/rock | Depth sed | m | Varma, Devika | Geocode | |
| 7 | Sea surface temperature, annual mean | SST (1-12) | °C | Varma, Devika | extracted from the World Ocean Atlas 2018 (WOA18) | Annual mean SST for the Mediterranean Sea sediments are from NSIPP AVHRR (Advanced Very High Resolution Radiometer) SST (https://www.ncei.noaa.gov/products/avhrr-pathfinder-sst). |
| 8 | Acyclic glycerol dialkyl glycerol tetraether, fractional abundance | GDGT-0 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1302 | |
| 9 | Monocyclic glycerol dialkyl glycerol tetraether, fractional abundance | GDGT-1 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1300 | |
| 10 | Dicyclic glycerol dialkyl glycerol tetraether, fractional abundance | GDGT-2 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1298 | |
| 11 | Tricyclic glycerol dialkyl glycerol tetraether, fractional abundance | GDGT-3 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1296 | |
| 12 | Crenarchaeol, fractional abundance | Cren | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1292 | |
| 13 | Crenarchaeol regio-isomer, fractional abundance | Cren' | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1292 | |
| 14 | Hydroxylated acyclic glycerol dialkyl glycerol tetraether, fractional abundance | OH-GDGT-0 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1300 | |
| 15 | Hydroxylated monocyclic glycerol dialkyl glycerol tetraether, fractional abundance | OH-GDGT-1 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1298 | |
| 16 | Hydroxylated dicyclic glycerol dialkyl glycerol tetraether, fractional abundance | OH-GDGT-2 | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1296 | |
| 17 | Acyclic glycerol dialkyl glycerol tetraether (peak area) | GDGT-0 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1302 | |
| 18 | Monocyclic glycerol dialkyl glycerol tetraether (peak area) | GDGT-1 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1300 | |
| 19 | Dicyclic glycerol dialkyl glycerol tetraether (peak area) | GDGT-2 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1298 | |
| 20 | Tricyclic glycerol dialkyl glycerol tetraether (peak area) | GDGT-3 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1296 | |
| 21 | Crenarchaeol (peak area) | Cren peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1292 | |
| 22 | Crenarchaeol isomer (peak area) | Cren iso peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1292 | |
| 23 | Hydroxylated acyclic glycerol dialkyl glycerol tetraether (peak area) | OH-GDGT-0 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1300 | |
| 24 | Monocyclic glycerol dialkyl glycerol tetraether (peak area) | GDGT-1 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1298 | |
| 25 | Hydroxylated dicyclic glycerol dialkyl glycerol tetraether (peak area) | OH-GDGT-2 peak area | Varma, Devika | Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS) | m/z 1296 | |
| 26 | Branched and isoprenoid tetraether index | BIT | Varma, Devika | Calculated according to Hopmans et al. (2004); De Jonge et al. (2015) | Hopmans et al. (2004, doi:10.1016/j.epsl.2004.05.012) | |
| 27 | Tetraether index of 86 carbon atoms | TEX86 | Varma, Devika | Calculated according to Schouten et al. (2002) | ||
| 28 | Ring index of hydroxylated tetraethers RI-OH | RI-OH | Varma, Devika | Calculated according to Lü et al. (2015) | ||
| 29 | Ring index of hydroxylated tetraethers RI-OH' | RI-OH' | Varma, Devika | Calculated according to Lü et al. (2015) | ||
| 30 | Hydroxide | OH | % | Varma, Devika | Calculated according to Huguet et al. (2013) | |
| 31 | Tetraether index of 86 carbon atoms including OH-isoGDGT-0 | TEX86-OH | Varma, Devika | Calculated according to Varma et al. (2023) | ||
| 32 | Analytical method | Method | Varma, Devika | |||
| 33 | Sample comment | Sample comment | Varma, Devika | |||
| 34 | Reference/source | Reference | Varma, Devika | |||
| 35 | Uniform resource locator/link to reference | URL ref | Varma, Devika |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2474 data points
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