Lipid biomarker glycerol dialkyl glycerol tetraether (GDGT) distributions from soils, peats and lake sediments on Sumatra
Petter Hällberg, Guillermo Jarne Bueno, Yolanda Schankat, Julia Steinbach, Hamdi Rifai, Caroline Bouvet de la Maisonneuve, Rienk H. Smittenberg
This dataset contains glycerol dialkyl glycerol tetraether (GDGT) distributions from a soil transect, two peat cores and a short lake core on West Sumatra. We report the peak areas for isoprenoid-GDGTs, branched-GDGTs and H-GDGTs, allowing GDGT indexes to be calculated by the user.
GDGT data can be used as paleothermometry and paleoenvironmental proxies, and we use the data to reconstruct the Holocene temperature evolution and local environmental conditions on Sumatra over the Holocene.
The data was generated by high performance liquid chromatography and mass spectrometry (HPLC-MS) measurements of polar lipid extracts. The soils are from an altitudinal transect 0 – 2840 m elevation range, while lake and peat core sediments are of ages up to 11000 years, i.e., almost the entire Holocene.
TerrestrialGeochemistrybrGDGTsisoGDGTsGDGTH-GDGTsTemperature reconstructionHoloceneProxyBiomarkersLipids
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Data description
Reported data are the peak areas of a range of GDGT compounds. Blanks indicate that the compound was absent in the sample, or under the limit of quantification. File type: .csv. File size: 103 kB.
Column description:
- Type (peat, lake, or soil)
- Site
- Sample name
- Age (years BP)
- Depth (cm; where 0 for soils indicate that the samples were collected from the upper centimeter, i.e. less than 1 cm depth)
- Elevation (m)
- 5-methyl brGDGTs: Ia, Ib, Ic, IIa, IIb, IIc, IIIa, IIIb, IIIc
- 6-methyl brGDGTs: IIa', IIb', IIIa', IIIb'
- 7-methyl brGDGT: IIIa7
- Isoprenoid GDGTs: GDGT-0, GDGT-1, GDGT-2, GDGT-3, GDGT-4, cren, cren isomer
- H-brGDGTs: H1020ab (combined H1020a and H1020b), H1020c, H1034a, H1034b, H1034c, H1048
- H-isoGDGTs: H-GDGT-0, H-GDGT-1, H-GDGT-2
For naming convections and molecular structures for brGDGTs and H-isoGDGTs, see Naafs et al. 2018 and for H-brGDGTs see Baxter et al. 2019.
Comments
Petter Hällberg generated the Diatas and Singgalang data and curated all other data. Guillermo Jarne Bueno generated the Padang data and Yolanda Schankat generated the lake Maninjao data. Julia Steinbach assisted with the analyses. Hamdi Rifai and Caroline Bouvet de la Maisonneuve were responsible for the collection of the Diatas, Padang and Maninjao samples and aided in obtaining the Singgalang samples. Rienk H. Smittenberg provided funding and led the project and he is also an alternative contact person.
Project
The data were generated as part of project 2017-04430 funded by the Swedish Research Council (VR) to Rienk Smittenberg
Publisher
Bolin Centre Database
License
First name
Petter
Last name or organisation
Hällberg
Email address
Address
Department of Geological Sciences; Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Atmosphere > Atmospheric temperature > Atmospheric temperature indices
GCMD location
Ocean > Indian Ocean > Indonesia > Sumatra
Dataset language
English