Li, Nannan; Santos, Ricardo N; Ladd, S Nemiah; Nelson, Daniel B; Lloren, Ronald; Dubois, Nathalie: Compound-specific stable hydrogen isotope (δ2H) compositions of fatty acids extracted from the Gushantun peat bog, Northeast China [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993518 (dataset in review)
Abstract:
This dataset includes compound-specific stable hydrogen isotope (δ2H) measurements of fatty acids extracted from the Gushantun peat bog (42°18'22.1 N, 126°16' 57.7 E, 506m). Total lipid extracts were obtained from 1–2 g of freeze‑dried peat samples using a mixture of dichloromethane and methanol (DCM:MeOH = 9:1, v/v) in a Dionex ASE 350 Accelerated Solvent Extractor at the Biomarker and Sedimentology Laboratory, Eawag (Dübendorf, Switzerland). Fatty acids were isolated from the total lipid extract by saponification, followed by acidification and methylation using methanol of known hydrogen isotopic composition. The resulting fatty acid methyl esters (FAMEs) were purified using AgNO3‑silica gel columns (~10 wt% loading). Compound‑specific δ²H values of the purified FAMEs were determined via pyrolysis GC‑IRMS using a Thermo TRACE GC Ultra coupled to a Thermo Delta V Plus isotope ratio mass spectrometer via a GC Isolink interface, operated in pyrolysis mode, at the Stable Isotope Ecology Laboratory, University of Basel (Basel, Switzerland).
Keyword(s):
Supplement to:
Li, Nannan; Li, Dehui; Liu, Baojian; Santos, Ricardo N; Ladd, S Nemiah; Nelson, Daniel B; Sack, Dorothy; Lloren, Ronald; Brunner, Irene; Orme, Lisa C; Gao, Guizai; Jie, Dongmei; Dubois, Nathalie (in prep.): Proxy evidence challenges a humid Younger Dryas in Northeast China.
Coverage:
Latitude: 42.306139 * Longitude: 126.282694
Date/Time Start: 2009-08-15T08:00:00 * Date/Time End: 2009-08-15T08:00:00
Minimum DEPTH, sediment/rock: 6.53 m * Maximum DEPTH, sediment/rock: 7.48 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Li, Nannan | Geocode | |
| 2 | AGE | Age | ka BP | Li, Nannan | Geocode | |
| 3 | n-fatty acid C22:0, δD | n-C22:0 δD | ‰ SMOW | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 4 | n-fatty acid C22:0, δD, standard deviation | n-C22:0 δD std dev | ± | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 5 | n-fatty acid C24:0, δD | n-C24:0 δD | ‰ SMOW | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 6 | n-fatty acid C24:0, δD, standard deviation | n-C24:0 δD std dev | ± | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 7 | n-fatty acid C26:0, δD | n-C26:0 δD | ‰ SMOW | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 8 | n-fatty acid C26:0, δD, standard deviation | n-C26:0 δD std dev | ± | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 9 | n-fatty acid C28:0, δD | n-C28:0 δD | ‰ SMOW | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 10 | n-fatty acid C28:0, δD, standard deviation | n-C28:0 FA δD std dev | ± | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 11 | n-fatty acid C30:0, δD | n-C30:0 δD | ‰ SMOW | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 12 | n-fatty acid C30:0, δD, standard deviation | n-C30:0 δD std dev | ± | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 13 | n-fatty acid C32:0, δD | n-C32:0 δD | ‰ SMOW | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
| 14 | n-fatty acid C32:0, δD, standard deviation | n-C32:0 δD std dev | ± | Li, Nannan | Gas chromatograph–isotope ratio mass spectrometer (GC-IRMS), Thermo Scientific, Trace GC Ultra; coupled with Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fisher Scientific, Delta V Plus [equipped with a GC Isolink interface] | vs. VSMOW-SLAP |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
170 data points