Compound-specific δ¹³C values of long-chain n-alkanes from Holocene marine sediment core MDBT 561 (southern Brazilian shelf)

Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research) 2026 Dataset Open access

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Authors: Felipe Rodrigues Santos, Rafael André Lourenço, Satie Taniguchi, César de Castro Martins, Ilana E K C Wainer, Michel Michaelovitch de Mahiques, Renata Hanae Nagai, Rubens César Lopes Figueira, Ioanna Bouloubassi, Marcia C Bicego
DOI: 10.1594/pangaea.992685
Cited by: 1

Abstract

This dataset includes compound-specific stable carbon isotope (δ¹³C) values of long-chain n-alkanes (nC27–nC33) from the Holocene marine sediment core MDBT 561, collected on the southern Brazilian continental shelf. Individual n-alkanes were analyzed using gas chromatography–combustion–isotope ratio mass spectrometry (GC-C-IRMS). The compound-specific isotope data provide information on the sources and isotopic composition of terrigenous organic matter delivered to the shelf, supporting reconstructions of vegetation dynamics and continental hydrological variability during the Holocene.

Publication details

Journal / source
Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research)
Publication date
1 January 2026
Language
EN
Document type
Dataset