Organic geochemical analysis of sediment cores from Lake Funda (Azores Archipelago, Portugal)

DOI

To evaluate changes in terrestrial and aquatic ecosystems in the Azores, we developed paleoecological and paleoclimate records from Lake Funda on Flores Island that span the last millennium. Vegetation composition (n-alkane average chain length) indicate when human activities began in the catchment area and biogenic silica tracks changes in diatom productivity. In addition, sterol hydrogenation and archaeal lipids (isoprenoid glycerol dialkyl glycerol tetraethers) trace changes in redox conditions and biogeochemical cycles, respectively. Finally, a high-resolution reconstruction using leaf wax hydrogen isotopes records changes in precipitation amount over the last millennium.

Identifier
DOI https://doi.org/10.1594/PANGAEA.941316
Related Identifier https://doi.org/10.1016/j.quascirev.2022.107525
Related Identifier https://doi.org/10.1016/j.scitotenv.2022.154828
Related Identifier https://doi.org/10.1594/PANGAEA.933712
Related Identifier https://doi.org/10.1073/pnas.2108236118
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.941316
Provenance
Creator Richter, Nora (ORCID: 0000-0002-4613-005X); Russell, James M; Amaral-Zettler, Linda A; DeGroff, Wylie; Raposeiro, Pedro Miguel ; Gonçalves, Vítor (ORCID: 0000-0002-5737-296X); Pla-Rabes, Sergi ; Hernández, Armand ; Benavente, Mario; Ritter, Catarina ; Bao, Roberto ; Prego, Ricardo; Giralt, Santiago
Publisher PANGAEA
Publication Year 2022
Funding Reference Fundação para a Ciência e Tecnologia, PTDC CTA AMB 28511 2017
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 2362 data points
Discipline Earth System Research
Spatial Coverage (-31.218 LON, 39.406 LAT); Lake Funda, Flores Island, Azores