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Raposeiro, Pedro Miguel; Armand Hernández, Armand; Pla-Rabes, Sergi; Gonçalves, Vítor; Bao, Roberto; Sáez, Alberto; Souto, Martin; Benavente, Mario; Richter, Nora; Gordon, Verónica; Yongsong, Huang; Giralt, Santiago (2021): Multi-proxy analysis of sediment cores from Lake Caldeirão (Azores archipelago, Portugal). PANGAEA, https://doi.org/10.1594/PANGAEA.933730

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Abstract:
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
Coverage:
Latitude: 39.711433 * Longitude: -31.111617
Date/Time Start: 2017-06-24T00:00:00 * Date/Time End: 2017-06-24T00:00:00
Minimum Elevation: 399.0 m * Maximum Elevation: 399.0 m
Event(s):
Caldeirao_2017 * Latitude: 39.711433 * Longitude: -31.111617 * Date/Time: 2017-06-24T00:00:00 * Elevation: 399.0 m * Recovery: 4.6 m * Location: Lake Caldeirão, Azores * Method/Device: Gravity corer, UWITEC (GCUWI)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1AGEAgeka BPGeocode
2AgeAgea ADGiralt, SantiagoAMS 14C dating on pollen concentrates; Clam routine on R
3Aerophilous diatomsAeroph diatom%Gonçalves, VítorDiatom analysis (Battarbee, 1986, in Berglund, Handbook of Holocene Pal.)
4Diatoms, benthicDiatom benthic%Gonçalves, VítorDiatom analysis (Battarbee, 1986, in Berglund, Handbook of Holocene Pal.)
5Carbon dioxide, partial pressure, blood, standard errorpCO2 blood std e±Gonçalves, VítorDiatom analysis (Battarbee, 1986, in Berglund, Handbook of Holocene Pal.)
6Diatoms, plankticDiatom plank%Gonçalves, VítorDiatom analysis (Battarbee, 1986, in Berglund, Handbook of Holocene Pal.)
7ChironominiChironomini%Raposeiro, Pedro MiguelChironomid analysis (Brooks et al, 2007, The identification and use of Palaeartic Chironomid Larvae in Palaecology)Chironomidae - Chironomini
8OrthocladiinaeOrthocladiinae%Raposeiro, Pedro MiguelChironomid analysis (Brooks et al, 2007, The identification and use of Palaeartic Chironomid Larvae in Palaecology)Chironomidae - Orthocladiinae
9TanytarsiniTanytarsini%Raposeiro, Pedro MiguelChironomid analysis (Brooks et al, 2007, The identification and use of Palaeartic Chironomid Larvae in Palaecology)Chironomidae - Tanytarsini
10TanypodinaeTanypodinae%Raposeiro, Pedro MiguelChironomid analysis (Brooks et al, 2007, The identification and use of Palaeartic Chironomid Larvae in Palaecology)Chironomidae - Tanypodinae
11Charcoal fluxCharcoal flux#/cm2/aSouto, MartinCharcoal as a Fire Proxy (Whitlock, 2005, in Smol et al, Tracking Environmental Change Using Lake Sediments Terrestrial, Algal, and Siliceous Indicators)
12Accumulation rate, coprophilous fungi sporesAcc rate coproph fung sp flux#/cm2/aSouto, MartinPlant Macrofossils (Birks, 2005, in Smol et al, Tracking Environmental Change Using Lake Sediments Terrestrial, Algal, and Siliceous Indicators)
13Arboreal pollenAP%de Boer, Erik JPollen analysis (Bennett & Willis, 2001, in Birks & Last, Tracking Environmental Change Using Lake Sediments)
14Pollen, shrubsPollen shrubs%de Boer, Erik JPollen analysis (Bennett & Willis, 2001, in Birks & Last, Tracking Environmental Change Using Lake Sediments)
15Pollen, herbsPollen herbs%de Boer, Erik JPollen analysis (Bennett & Willis, 2001, in Birks & Last, Tracking Environmental Change Using Lake Sediments)
16PiceaPicea#/gSouto, MartinPlant Macrofossils (Birks, 2005, in Smol et al, Tracking Environmental Change Using Lake Sediments Terrestrial, Algal, and Siliceous Indicators)
17Accumulation rate, macrophytes seedsAcc rate macrophy seeds#/cm2/aSouto, MartinPlant Macrofossils (Birks, 2005, in Smol et al, Tracking Environmental Change Using Lake Sediments Terrestrial, Algal, and Siliceous Indicators)
18Carbon, organic, total/Nitrogen, total ratioTOC/TN
19Carbon, organic, totalTOC%Bao, RobertoMass spectrometer Finnigan Finnigan delta Plus EA-CF-IRMS
20δ13Cδ13C‰ PDBBao, RobertoMass spectrometer Finnigan Finnigan delta Plus EA-CF-IRMS
21Nitrogen, totalTN%Bao, RobertoMass spectrometer Finnigan Finnigan delta Plus EA-CF-IRMS
22δ15Nδ15N‰ airBao, RobertoMass spectrometer Finnigan Finnigan delta Plus EA-CF-IRMS
23Monostichoplana filumM. filum#Yongsong, HuangChromatography5 beta Stigmastanol influx
24Accumulation rate, polycyclic aromatic hydrocarbonsAcc rate PAHng/cm2/aYongsong, HuangChromatography
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1104 data points

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