Long-chain alkyl diol proxies and their applications in GC-MS analysis
Version 2 2024-06-03, 01:38
Version 1 2024-03-31, 12:46
dataset
posted on 2024-06-03, 01:38 authored by Kotaro Hoshi, Madoka Kobayashi, Akira Kuwata, Ken Sawada<p>Long-chain (C<sub>28</sub>, C<sub>30</sub>, and C<sub>32</sub>) alkyl diols (LCD) in marine sediments are considered to originate from marine diatom genus <em>Proboscia</em> and Eustigmatophytes. LCD has been proposed as a proxy for upwelling, riverine input and sea surface temperature, but has not yet been applied much to palaeoceanographic studies. Long-chain (C<sub>27</sub> and C<sub>29</sub>) hydroxy alkenoates such as 12-hydroxy methyl alkanoate (MA) were found in marine sediments and also derived from diatom <em>Proboscia</em>. In this study, we analyzed LCD and 12-OH MA in surface sediment from the Northwest Pacific off the coast of Sanriku and <em>Proboscia alata</em> culture sample. We identified monosaturated and saturated 1,13-, 1,14-, and 1,15-diols, as well as saturated 12-OH MA.</p>
Funding
Precise reconstruction of variation in paleovegetation during Cretaceous hot period by analyses of terrestrial plant-derived organic molecules in sediments
Japan Society for the Promotion of Science
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Japan Society for the Promotion of Science
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Japan Society for the Promotion of Science
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