Multi-proxy analysis of sediment cores from Lake Ginjal (Azores archipelago, Portugal)

DOI

The Azores archipelago is a group of nine oceanic volcanic islands located in the mid-North Atlantic, roughly 1500 km from Europe and 1900 km from America. In 2018, a sediment core was recovered from Lake Ginjal on Terceira island. A 3.5 m long sediment core was taken using a Russian chamber corer, 0.5 m long, with 5 cm diameter. Lake Ginjal occupies the bottom of a small crater at 390 m above sea level located in the plains of Achada, the oldest volcanic crater of Terceira island. Its maximum length and width are 120 m and 70 m, respectively, and its maximum water depth is 1 m. The core was dated using ¹⁴C and produced a multi-proxy dataset of geochemical and biological analyses that we used to uncover paleoenvironmental changes on Lake Azul in the last 550 years.

Identifier
DOI https://doi.org/10.1594/PANGAEA.933674
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.933674
Provenance
Creator Raposeiro, Pedro Miguel ORCID logo; Ritter, Catarina ORCID logo; Salcedo, Marina; Aguiar, Nicole; de Boer, Erik J ORCID logo; Bao, Roberto ORCID logo; Sáez, Alberto; Giralt, Santiago ORCID logo; Gonçalves, Vítor (ORCID: 0000-0002-5737-296X)
Publisher PANGAEA
Publication Year 2021
Funding Reference Fundação para a Ciência e Tecnologia https://doi.org/10.13039/501100001871 Crossref Funder ID PTDC/CTA-AMB/28511/2017 WHEN WERE THE AZORES ARCHIPELAGO REALLY COLONIZED? A HIGH-RESOLUTION PALEOLIMNOLOGICAL APPROACH
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 1058 data points
Discipline Earth System Research
Spatial Coverage (-27.158 LON, 38.695 LAT); Lake Ginjal, Terceira Island