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Ladd, S Nemiah; Maloney, Ashley E; Nelson, Daniel B; Peaple, Mark D; Richey, Julie N; Witt, Amanda; Sobeck, Polly; Prebble, M; Sear, David A; Langdon, Peter G; Dubois, Nathalie; Sachs, Julian P: South Pacific Convergence Zone (SPCZ) lipid data from Solomon Islands and Vanuatu: d2Hdinosterol, calculated precipitation rates, d2Hfattyacids, d2Halkanes, and alkane ratios [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.989434 (dataset in review), In: Ladd, SN et al.: Dinosterol hydrogen isotope ratios in freshwater lake sediment archives indicate decreased Little Ice Age precipitation intensity across the South Pacific Convergence Zone [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.989348 (dataset in review)

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Abstract:
Lipid isotope data from South Pacific Convergence Zone sediment cores collected from five freshwater lakes on Tetepare and Rendova Islands in Solomon Islands, and Thion Island in Vanuatu. The hydrogen isotope composition of the dinoflagellate biomarker dinosterol, which is inversely correlated with mean annual precipitation rates, and provides quantitative 500-to-1000-year records of pre-instrumental precipitation variability from the western portion of the SPCZ Age. d2Hdinosterol and calculated precipitation rates from 5 cores (Rendova_SHAR1UC2, Tetepare_SBARUC2, Tetepare_STAVUC4, Thion_VTRUC3, Thion_VTRWUC2), as well as d2Hfattyacids, d2Halkanes, and alkane ratios from 1 core: Thion_VTWUC2.
Keyword(s):
alkanes; Dinosterol,; fatty acids; Holocene; Hydrogen isotopes; lakes; Organic Geochemistry; paleohydrology; Paleolimnology; precipitation; Sedimentology; South Pacific Convergence Zone; tropical Pacific
Supplement to:
Ladd, S Nemiah; Maloney, Ashley E; Nelson, Daniel B; Peaple, Mark D; Richey, Julie N; Witt, Amanda; Sobeck, Polly; Prebble, M; Sear, David A; Langdon, Pete G; Dubois, Nathalie; Sachs, Julian P (submitted): Decreased Little Ice Age precipitation intensity across the South Pacific Convergence Zone.
Related to:
Ladd, S Nemiah; Maloney, Ashley E; Nelson, Daniel B; Prebble, M; Camperio, G; Sear, David A; Hassall, Jonathan D; Langdon, Peter G; Sachs, Julian P; Dubois, Nathalie (2021): Leaf Wax Hydrogen Isotopes as a Hydroclimate Proxy in the Tropical Pacific. Journal of Geophysical Research: Biogeosciences, 126(3), e2020JG005891, https://doi.org/10.1029/2020JG005891
Maloney, Ashley E; Richey, Julie N; Nelson, Daniel B; Hing, Samantha; Sear, David A; Hassall, Jonathan D; Langdon, Peter G; Sichrowsky, Ursula; Schabetsberger, Robert; Malau, Atoloto; Meyer, Jean-Yves; Croudace, Ian W; Sachs, Julian P (2022): Contrasting Common Era climate and hydrology sensitivities from paired lake sediment dinosterol hydrogen isotope records in the South Pacific Convergence Zone. Quaternary Science Reviews, 281, 107421, https://doi.org/10.1016/j.quascirev.2022.107421
Sear, David A; Allen, Melinda S; Hassall, Jonathan D; Maloney, Ashley E; Langdon, Peter G; Morrison, Alex E; Henderson, Andrew; Mackay, Helen; Croudace, Ian W; Clarke, Charlotte; Sachs, Julian P; Macdonald, Georgiana; Chiverrell, Richard C; Leng, Melanie J; Cisneros-Dozal, L M; Fonville, Thierry; Pearson, Emma J (2020): Human settlement of East Polynesia earlier, incremental, and coincident with prolonged South Pacific drought. Proceedings of the National Academy of Sciences, 117(16), 8813-8819, https://doi.org/10.1073/pnas.1920975117
Funding:
Australian Institute of Nuclear Science and Engineering, grant/award no. ALNGRA14513
Australian Institute of Nuclear Science and Engineering, grant/award no. ALNGRA16012
National Science Foundation (NSF), grant/award no. 0823503: Late Holocene ITCZ Shifts from Sedimentary Lipids on Tropical Pacific Islands
National Science Foundation (NSF), grant/award no. 1068839: IGERT Ocean Change
National Science Foundation (NSF), grant/award no. 1502417: Late Holocene Changes in the SPCZ from Algal Lipid D/H in Lakes Across Oceania
Natural Environment Research Council (NERC), grant/award no. NE/W005565/1
Coverage:
Median Latitude: -11.212230 * Median Longitude: 161.317043 * South-bound Latitude: -15.041050 * West-bound Longitude: 157.355550 * North-bound Latitude: -8.562180 * East-bound Longitude: 167.089917
Date/Time Start: 2011-06-15T00:00:00 * Date/Time End: 2012-06-27T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 1.385 m
Event(s):
SPCZ_Rendova_SHAR1UC2 * Latitude: -8.562180 * Longitude: 157.355550 * Date/Time: 2011-06-23T00:00:00 * Elevation: 30.0 m * Location: Harai Lake #1, Rendova, Solomon Islands * Method/Device: Percussion corer (PCOR) * Comment: Water depth at core site: 3.4
SPCZ_Tetepare_SBARUC2 * Latitude: -8.722320 * Longitude: 157.600450 * Date/Time: 2011-06-17T00:00:00 * Elevation: 7.0 m * Location: Barora Pond, Tetepare, Solomon Islands * Method/Device: Percussion corer (PCOR) * Comment: Water depth at core site: 2.4
SPCZ_Tetepare_STAVUC4 * Latitude: -8.702770 * Longitude: 157.450167 * Date/Time: 2011-06-15T00:00:00 * Elevation: 11.0 m * Location: Lake Tavara, Tetepare, Solomon Islands * Method/Device: Percussion corer (PCOR) * Comment: Water depth at core site: 3.7
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventMaloney, Ashley E
2SectionSectMaloney, Ashley Ecore section
3Depth, top/minDepth topmMaloney, Ashley E
4AgeAgea AD/CEMaloney, Ashley Etop depth
5Depth, bottom/maxDepth botmMaloney, Ashley E
6AgeAgea AD/CEMaloney, Ashley Ebottom depth
7DEPTH, sediment/rockDepth sedmMaloney, Ashley EGeocode
8Age, minimum/youngAge mina AD/CEMaloney, Ashley E
9Age, maximum/oldAge maxa AD/CEMaloney, Ashley E
10AgeAgea AD/CEMaloney, Ashley Emedian values
11AgeAgea AD/CEMaloney, Ashley Emean values
124alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, δDDinosterol δD‰ SMOWMaloney, Ashley E
134alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, δD, standard deviationDinosterol δD std dev±Maloney, Ashley E
14Number of injectionsN injections#Maloney, Ashley E
15PrecipitationPrecipmm/dayMaloney, Ashley E
16Precipitation, standard errorPrecip std e±Maloney, Ashley E
17n-fatty acid C22, δDn-C22 FA δD‰ SMOWLadd, S Nemiah
18n-fatty acid C22, δD, standard deviationn-C22 FA δD std dev±Ladd, S Nemiah
19n-fatty acid C24, δDn-C24 FA δD‰ SMOWLadd, S Nemiah
20n-fatty acid C24, δD, standard deviationn-C24 FA δD std dev±Ladd, S Nemiah
21n-fatty acid C26, δDn-C26 FA δD‰ SMOWLadd, S Nemiah
22n-fatty acid C26, δD, standard deviationn-C26 FA δD std dev±Ladd, S Nemiah
23n-fatty acid C28, δDn-C28 FA δD‰ SMOWLadd, S Nemiah
24n-fatty acid C28, δD, standard deviationn-C28 FA δD std dev±Ladd, S Nemiah
25n-Alkane C29, δDC29 δD‰ SMOWLadd, S Nemiah
26n-Alkane C29, δD, standard deviationC29 δD std dev±Ladd, S Nemiah
27n-Alkane C31, δDC31 δD‰ SMOWLadd, S Nemiah
28n-Alkane C31, δD, standard deviationC31 δD std dev±Ladd, S Nemiah
29n-Alkane C33, δDC33 δD‰ SMOWLadd, S Nemiah
30n-Alkane C33, δD, standard deviationC33 δD std dev±Ladd, S Nemiah
31(C23+C25)/(C23+C25+C29+C31) n-alkanes ratioP aqLadd, S Nemiah
32Method commentMethod commMaloney, Ashley E
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:
3561 data points

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