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Fraga-Ferreira, Paula Luiza (2024): Elemental and isotopic data from from ODP Hole 112-680A, Peruvian Margin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973695

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Published: 2024-12-09DOI registered: 2025-01-14

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Abstract:
The data are from sediments collected during ODP Expedition 112, borehole 680A, at the Peruvian Margin. The dataset includes concentrations of Al (mg/g), Fe (mg/g), Mn (mg/g), P (mg/g), K (mg/g), Ca (mg/g), Na (mg/g), Mo (µg/g), U (µg/g), N (%), S (%), TOC (%), TC (%), Fe extracted by sodium acetate (%), Fe extracted by sodium dithionite (%), Fe in magnetite (%), Fe in pyrite, δ¹⁵N (‰), δ¹³C (‰) in the organic fraction of sediments, and δ⁹⁸Mo (‰) from 45 different samples. The aim of collecting these data was to investigate how oxygen levels at the seafloor and in the water column fluctuated from the Pliocene to the Pleistocene.
Keyword(s):
Anoxia; Isotope composition; Paleooceanography; Sediment
Supplement to:
Fraga-Ferreira, Paula Luiza; Siebert, Christopher; Lehmann, Moritz F; Frank, Martin; Scholz, Florian (2026): Pliocene–Pleistocene Redox Evolution of the Peruvian Margin: A Multi‐Proxy Approach. Paleoceanography and Paleoclimatology, 41(2), e2025PA005301, https://doi.org/10.1029/2025PA005301
Related to:
Scholz, Florian; Hensen, Christian; Noffke, Anna; Rohde, Anne; Liebetrau, Volker; Wallmann, Klaus (2011): Early diagenesis of redox-sensitive trace metals in the Peru upwelling area – response to ENSO-related oxygen fluctuations in the water column. Geochimica et Cosmochimica Acta, 75(22), 7257-7276, https://doi.org/10.1016/j.gca.2011.08.007
Suess, Erwin; von Huene, Roland; et al. (1988): Proceedings of the Ocean Drilling Program, 112 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 112, 1015 pp, https://doi.org/10.2973/odp.proc.ir.112.1988
Funding:
German Research Foundation (DFG), grant/award no. FR1198/17-1: Pliocene to Pleistocene reconstruction of regional versus global ocean oxygenation from eastern Pacific anoxic sediments (IODP priority program 527)
Coverage:
Latitude: -11.065000 * Longitude: -78.077830
Date/Time Start: 1986-11-05T07:15:00 * Date/Time End: 1986-11-05T20:30:00
Minimum DEPTH, sediment/rock: 0.72 m * Maximum DEPTH, sediment/rock: 78.14 m
Event(s):
112-680A * Latitude: -11.065000 * Longitude: -78.077830 * Date/Time Start: 1986-11-05T07:15:00 * Date/Time End: 1986-11-05T20:30:00 * Elevation: -272.0 m * Penetration: 93.8 m * Recovery: 81.19 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 93.8 m cored; 0 m drilled; 86.6 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmFraga-Ferreira, Paula LuizaGeocode
2EpochEpochFraga-Ferreira, Paula Luiza
3Sample code/labelSample labelFraga-Ferreira, Paula LuizaDSDP/ODP/IODP sample designation
4Leg NumberLegFraga-Ferreira, Paula Luiza
5SiteSiteFraga-Ferreira, Paula Luiza
6HoleHFraga-Ferreira, Paula Luiza
7CoreCoreFraga-Ferreira, Paula Luiza
8TypeTypeFraga-Ferreira, Paula Luiza
9SectionSectFraga-Ferreira, Paula Luiza
10Section positionSectcmFraga-Ferreira, Paula LuizaTop
11Section positionSectcmFraga-Ferreira, Paula LuizaBottom
12AluminiumAlmg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
13CalciumCamg/gFraga-Ferreira, Paula Luiza
14IronFemg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
15PotassiumKmg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
16ManganeseMnmg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
17SodiumNamg/gFraga-Ferreira, Paula Luiza
18PhosphorusPmg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
19MolybdenumMoµg/gFraga-Ferreira, Paula LuizaQ-ICP-MS (Agilent 7500)
20UraniumUµg/gFraga-Ferreira, Paula LuizaQ-ICP-MS (Agilent 7500)
21NitrogenN%Fraga-Ferreira, Paula Luiza
22SulfurS%Fraga-Ferreira, Paula Luiza
23Carbon, organic, totalTOC%Fraga-Ferreira, Paula Luiza
24Carbon, totalTC%Fraga-Ferreira, Paula Luiza
25Iron/Aluminium ratioFe/AlFraga-Ferreira, Paula LuizaCalculated
26Manganese/Aluminium ratioMn/AlFraga-Ferreira, Paula LuizaCalculatedmultiplied by 1000
27Molybdenum excessMo xsmg/kgFraga-Ferreira, Paula Luizarelative to Andesites (following Scholz et al., 2011)
28Uranium excessU xsmg/kgFraga-Ferreira, Paula Luizarelative to Andesites (following Scholz et al., 2011)
29Enrichment factorEFFraga-Ferreira, Paula LuizaEF-Mo: Enrichment of Mo relative to Al content in sample
30Enrichment factorEFFraga-Ferreira, Paula LuizaEF-U: Enrichment of U relative to Al content in sample
31Iron, sodium acetate extractableFeac%Fraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ESFeac
32Iron, dithionite extractableFeD%Fraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ESFedith
33Iron, ammonium oxalate extractableFemag%Fraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ESFemag
34Iron in pyriteFe Py%Fraga-Ferreira, Paula LuizaFepy
35Iron, reactiveFe react%Fraga-Ferreira, Paula LuizaFeHR: Iron contained in highly reactive phases, i.e., the sum of Feac, Fedith, Femag and Fepy
36RatioRatioFraga-Ferreira, Paula LuizaFeHR/FeT: Sum of Iron in highly reactive phases/Total Iron in sample
37RatioRatioFraga-Ferreira, Paula LuizaFepy/FeHR: Fe contained in pyrite/Sum of Iron in highly reactive phases
38δ15Nδ15NFraga-Ferreira, Paula LuizaElemental anlayzer isotope ratio mass spectrometry (EA-IRMS), Sercon Limited, INTEGRA2
39δ13C, organic carbonδ13C Corg‰ PDBFraga-Ferreira, Paula LuizaElemental anlayzer isotope ratio mass spectrometry (EA-IRMS), Sercon Limited, INTEGRA2
40δ98Mo, authigenicδ98Mo authFraga-Ferreira, Paula LuizaMulti-collector ICP-MS (MC-ICP-MS), Nu Plasma III
41δ98Mo, standard deviationδ98Mo std dev±Fraga-Ferreira, Paula Luiza2STD
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1797 data points

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