Wüthrich, Lorenz; Bliedtner, Marcel; Schäfer, Imke Kathrin; Zech, Jana; Shajari, Fatemeh; Gaar, Dorian; Preusser, Frank; Salazar, Gary; Szidat, Sönke; Zech, Roland (2017): n-Alkane composition from the Loess Paleosol Sequence Möhlin, Switzerland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.884114, Supplement to: Wüthrich, L et al. (2017): Late Quaternary climate and environmental reconstruction based on leaf wax analyses in the loess sequence of Möhlin, Switzerland. E&G - Eiszeitalter und Gegenwart - Quaternary Science Journal, 66(2), 91-100, https://doi.org/10.5194/egqsj-66-91-2017
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Abstract:
We have measured leaf wax n-Alkanes from a Loess Paleosol Sequence (location: 47.56819 / 7.88053) ranging back to MIS 4. The data set contains n-Alkane patterns, Deuterium and Radiocarbon.
We also present some calculations, derived from the Patterns:
Average chain length gives a hint whether trees/shrubs or grasses were the dominant vegetation. The higher the value, the higher the contribution of grasses.
ACL=(27 x nC_27+29 x nC_29+31 x nC_31+33 x nC_33)/(nC_27+nC_29+nC_31+nC_33 )
OEP is a marker for degradation. The higher the values, the less degraded are the n-alkanes.
OEP=(nC_27+nC_29+nC_31+nC_33)/(nC_26+nC_28+nC_30+nC_32 )
For more information, further calculations and discussion see the related manuscript.
Coverage:
Latitude: 47.568190 * Longitude: 7.880530
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Wüthrich, Lorenz | |||
| 2 | Sample mass | Samp m | g | Wüthrich, Lorenz | ||
| 3 | n-Alkane C25, per unit sediment mass | C25/sed | µg/g | Wüthrich, Lorenz | ||
| 4 | n-Alkane C26, per unit sediment mass | C26/sed | µg/g | Wüthrich, Lorenz | ||
| 5 | n-Alkane C27, per unit sediment mass | C27/sed | µg/g | Wüthrich, Lorenz | ||
| 6 | n-Alkane C28, per unit sediment mass | C28/sed | µg/g | Wüthrich, Lorenz | ||
| 7 | n-Alkane C29, per unit sediment mass | C29/sed | µg/g | Wüthrich, Lorenz | ||
| 8 | n-Alkane C30, per unit sediment mass | C30/sed | µg/g | Wüthrich, Lorenz | ||
| 9 | n-Alkane C31, per unit sediment mass | C31/sed | µg/g | Wüthrich, Lorenz | ||
| 10 | n-Alkane C32, per unit sediment mass | C32/sed | µg/g | Wüthrich, Lorenz | ||
| 11 | n-Alkane C33, per unit sediment mass | C33/sed | µg/g | Wüthrich, Lorenz | ||
| 12 | n-Alkane C34, per unit sediment mass | C34/sed | µg/g | Wüthrich, Lorenz | ||
| 13 | n-Alkane C35, per unit sediment mass | C35/sed | µg/g | Wüthrich, Lorenz | ||
| 14 | n-Alkane, total per unit sediment mass | n-Alkane tot/sed | µg/g | Wüthrich, Lorenz | ||
| 15 | Odd-even predominance index | OEP | Wüthrich, Lorenz | n-C27 - n-C33 | ||
| 16 | n-Alkane, average chain length | ACL n-Alkane | Wüthrich, Lorenz | n-C27 - n-C33 | ||
| 17 | n-Alkane C29, δD | C29 δD | ‰ SMOW | Wüthrich, Lorenz | d2H wax | |
| 18 | n-Alkane C31, δD | C31 δD | ‰ SMOW | Wüthrich, Lorenz | d2H wax | |
| 19 | n-Alkane C29, standard deviation | C29 std dev | ± | Wüthrich, Lorenz | in per mil SMOW | |
| 20 | n-Alkane C31, standard deviation | C31 std dev | ± | Wüthrich, Lorenz | in per mil SMOW | |
| 21 | Laboratory code/label | Lab label | Wüthrich, Lorenz | |||
| 22 | Carbon mass | C | mg | Wüthrich, Lorenz | ||
| 23 | Fraction modern carbon | F14C | Wüthrich, Lorenz | |||
| 24 | Fraction modern carbon, standard deviation | F14C std dev | ± | Wüthrich, Lorenz | ||
| 25 | Age, dated, range, minimum | Age dated min | ka | Wüthrich, Lorenz | BP, 2 sigma | |
| 26 | Age, dated, range, maximum | Age dated max | ka | Wüthrich, Lorenz | BP, 2 sigma |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
673 data points