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Main Authors: Raposeiro, Pedro Miguel, Hernández, Armand, Gonçalves, Vítor, Bao, Roberto, Sáez, Alberto, Shanahan, Timothy M, Rúbio, Maria Jesus, Vázquez-Loureiro, David, Giralt, Santiago
Format: Dataset Open Access
Language:en
Published: PANGAEA 2021
Subjects:
Accumulation rate, coprophilous fungi spores; Accumulation rate, macrophytes seeds; Accumulation rate, polycyclic aromatic hydrocarbons; Aerophilous diatoms; Age; AGE; AMS 14C dating on pollen concentrates; Clam routine on R; Arboreal pollen; Caldeirao_2017; Carbon, organic, total; Carbon, organic, total/Nitrogen, total ratio; Carbon dioxide, partial pressure, blood, standard error; Charcoal, flux; Charcoal as a Fire Proxy (Whitlock, 2005, in Smol et al, Tracking Environmental Change Using Lake Sediments Terrestrial, Algal, and Siliceous Indicators); Chironomid analysis (Brooks et al, 2007, The identification and use of Palaeartic Chironomid Larvae in Palaecology); Chironomini; Chromatography; Diatom analysis (Battarbee, 1986, in Berglund, Handbook of Holocene Pal.); Diatoms, benthic; Diatoms, planktic; GCUWI; Gravity corer, UWITEC; Juniperus; Lake Caldeirão, Azores; Mass spectrometer Finnigan Finnigan delta Plus EA-CF-IRMS; Monostichoplana filum; Nitrogen, total; Orthocladiinae; Plant Macrofossils (Birks, 2005, in Smol et al, Tracking Environmental Change Using Lake Sediments Terrestrial, Algal, and Siliceous Indicators); Pollen, herbs; Pollen, shrubs; Pollen analysis (Bennett & Willis, 2001, in Birks & Last, Tracking Environmental Change Using Lake Sediments); Tanypodinae; Tanytarsini; δ13C; δ15N
Online Access:https://doi.org/10.1594/PANGAEA.933730
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Table of Contents:
  • 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. Lake Caldeirão is situated in the central caldeira of Corvo Island at 399 m altitude. A coring campaign was conducted in June 2017 using a 60mm diameter UWITEC gravity corer from UWITEC floating platform retrieving a core (4.60 m long) located in the deepest part of the lake. 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 Caldeirão in the last 1500 years

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