Molecular composition of terrestrial biomarkers of the eastern region of northeastern Brazil and transported to the Northeastern Brazilian margin, Western tropical Atlantic over the late Pleistocene from sediment core GL-1180

DOI

In order to explore past vegetation and hydroclimatic changes in the eastern region of northeastern Brazil over the late Pleistocene, we present the long-chain n-alkanes signature of modern native vegetation of the eastern region of northeastern Brazil: Caatinga and Atlantic Forest. Based on the relative abundance of long-chain n-alkanes in samples collected in September 2022, a novel proxy, the Caatinga Vegetation Index has been proposed to distinguish samples of the two vegetations.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.993726
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.993726
Provenance
Creator Rouyer-Denimal, Louis (ORCID: 0000-0002-0451-061X); Nguyen Tu, Thanh Thuy; Govin, Aline ORCID logo; Mendez-Millan, Mercedes; Nascimento, Rodrigo Azevedo ORCID logo; Albuquerque, Ana Luiza Spadano ORCID logo; Chiessi, Cristiano Mazur ORCID logo; Anquetil, Christelle; Huguet, Arnaud ORCID logo
Publisher PANGAEA
Publication Year 2026
Funding Reference Coordenação de Aperfeicoamento de Pessoal de Nível Superior https://doi.org/10.13039/501100002322 Crossref Funder ID 49558SM ; Coordenação de Aperfeicoamento de Pessoal de Nível Superior https://doi.org/10.13039/501100002322 Crossref Funder ID 8881.712022/2022-1 ; French National Research Agency https://doi.org/10.13039/501100001665 Crossref Funder ID ANR-11-IDEX-0004-17-EURE-0006 IPSL-Climate Graduate School-EUR; National Council for Scientific and Technological Development https://doi.org/10.13039/501100003593 Crossref Funder ID #305285/2025-4 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2024/00949-5 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2025/05117-0
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 1485 data points
Discipline Earth System Research
Spatial Coverage (-33.550 LON, -8.450 LAT); western tropical Atlantic