Long chain diol index and paleotemperature reconstruction for IODP Hole 306-U1313C, supplement to: Naafs, Bernhard David A; Hefter, Jens; Stein, Ruediger (2012): Application of the novel long chain diol index (LDI) palaeothermometer to the early Pleistocene (MIS 96). Organic Geochemistry, 49, 83-85

DOI

Recently, a new organic geochemical paleothermometer based on the relative abundance of long chain alkyl 1,13- and 1,15-diols, the so-called long chain diol index (LDI), was proposed. Because of its novelty, the proxy has not been reported for sediments older than 43 ka. We therefore determined the LDI for 14 sediment samples from the early Pleistocene between 2.49 and 2.41 Ma, comprising Marine Isotope Stage (MIS) 98 to 95, and converted the values to sea surface temperature (SST) estimates to test whether the LDI could be applied or not to the early Quaternary. We show that the long chain diols can be preserved in marine sediments from the early Pleistocene, although at our study site this is limited to periods of increased biomarker accumulation (glacials). Although the results are based on a limited time interval and number of samples, the similarity between LDI-based SST and alkenone-based SST from the same samples suggests that the LDI proxy may have potential for studies covering the entire Quaternary. Sediment depth (m) is given in adjusted depth (amcd), for the correlation between composite depth (mcd) and adjusted depth (amcd) see Naafs et al. (2012) dataset: doi:10.1594/PANGAEA.757945.

Identifier
DOI https://doi.org/10.1594/PANGAEA.780003
Related Identifier https://doi.org/10.1016/j.orggeochem.2012.05.011
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.780003
Provenance
Creator Naafs, Bernhard David A; Hefter, Jens; Stein, Ruediger
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2012
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 60 data points
Discipline Earth System Research
Spatial Coverage (-32.957 LON, 41.000 LAT)