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

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,...

Full description

Bibliographic Details
Main Authors: Raposeiro, Pedro Miguel, Ritter, Catarina, Salcedo, Marina, Aguiar, Nicole, de Boer, Erik J, Bao, Roberto, Sáez, Alberto, Giralt, Santiago, Gonçalves, Vítor
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Accumulation rate
coprophilous fungi spores
Aerophilous diatoms
Age
AMS 14C dating on pollen concentrates
Clam routine on R
Arboreal pollen
Azores Archipelago
Carbon
organic
total
total/Nitrogen
total ratio
Carbon dioxide
partial pressure
blood
standard error
Charcoal
flux
Charcoal analysis (Whitlock & Larsen
2001
in Birks & Last
Tracking Environmental Change Using Lake Sediments)
Chironomid analysis (Brooks et al
2007
The identification and use of Palaeartic Chironomid Larvae in Palaecology)
Chironomini
Coccoliths
standard deviation
Diatom analysis (Battarbee
1986
in Berglund
Handbook of Holocene Pal.)
Diatoms
benthic
planktic
Ginjal_2018
Lake Ginjal
Terceira Island
Mass spectrometer Finnigan Finnigan delta Plus EA-CF-IRMS
multiproxy
Nitrogen
oceanic island
Orthocladiinae
Pollen
Berglund
Birks
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.933674
https://doi.org/10.1594/PANGAEA.933674
Description
Summary: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.

Similar Items