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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 the ODP Expedition 112 borehole 680A at the Peruvian Margin. It contains Al (mg/g), Fe (mg/g), Mn (mg/g), P (mg/g), Mo (µg/g), U (µg/g), N (%), S (%), TOC (%), Fe extracted by Na acetate (%), Fe extracted by Na dithionite (%), Fe extracted by ammonium oxalate (%), Fe in pyrite, δ15N (‰), δ13C (‰) in the organic fraction of sediments and δ98Mo (‰) data from 45 different samples. The goal of collecting these data was to investigate how the oxygen levels of the seafloor and water column fluctuated from the Pliocene to the Holocene.
Keyword(s):
anoxia; isotope composition; Paleooceanography; sediment
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
13IronFemg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
14ManganeseMnmg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
15PhosphorusPmg/gFraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ES
16MolybdenumMoµg/gFraga-Ferreira, Paula LuizaQ-ICP-MS (Agilent 7500)
17UraniumUµg/gFraga-Ferreira, Paula LuizaQ-ICP-MS (Agilent 7500)
18NitrogenN%Fraga-Ferreira, Paula LuizaElement analyser CNS, Carlo Erba NA1500
19SulfurS%Fraga-Ferreira, Paula LuizaElement analyser CNS, Carlo Erba NA1500
20Carbon, organic, totalTOC%Fraga-Ferreira, Paula LuizaElement analyser CNS, Carlo Erba NA1500
21Iron/Aluminium ratioFe/AlFraga-Ferreira, Paula Luiza
22Manganese/Aluminium ratioMn/AlFraga-Ferreira, Paula LuizaCalculatedmultiplied by 1000
23Phosphorus/Carbon, organic total ratioP/TOCFraga-Ferreira, Paula LuizaCalculateddivided by their molar mass and multiplied by 10
24Molybdenum excessMo xsmg/kgFraga-Ferreira, Paula Luizarelative to Andesites (following Scholz et al., 2011)
25Uranium excessU xsmg/kgFraga-Ferreira, Paula Luizarelative to Andesites (following Scholz et al., 2011)
26Enrichment factorEFFraga-Ferreira, Paula LuizaEF-Mo: Enrichment of Mo relative to Al content in sample
27Enrichment factorEFFraga-Ferreira, Paula LuizaEF-U: Enrichment of U relative to Al content in sample
28Iron, sodium acetate extractableFeac%Fraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ESFeac
29Iron, dithionite extractableFeD%Fraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ESFedith
30Iron, ammonium oxalate extractableFemag%Fraga-Ferreira, Paula LuizaICP-OES, VARIAN 720-ESFemag
31Iron in pyriteFe Py%Fraga-Ferreira, Paula LuizaFepy
32Iron, reactiveFe react%Fraga-Ferreira, Paula LuizaFeHR: Iron contained in highly reactive phases, i.e., the sum of Feac, Fedith, Femag and Fepy
33RatioRatioFraga-Ferreira, Paula LuizaFeHR/FeT: Sum of Iron in highly reactive phases/Total Iron in sample
34RatioRatioFraga-Ferreira, Paula LuizaFepy/FeHR: Fe contained in pyrite/Sum of Iron in highly reactive phases
35δ15Nδ15NFraga-Ferreira, Paula LuizaElemental anlayzer isotope ratio mass spectrometry (EA-IRMS), Sercon Limited, INTEGRA2
36δ13C, organic carbonδ13C Corg‰ PDBFraga-Ferreira, Paula LuizaElemental anlayzer isotope ratio mass spectrometry (EA-IRMS), Sercon Limited, INTEGRA2
37δ98Mo, authigenicδ98Mo authFraga-Ferreira, Paula LuizaMulti-collector ICP-MS (MC-ICP-MS), Nu Plasma III
38δ98Mo, standard deviationδ98Mo std dev±Fraga-Ferreira, Paula Luiza2STD
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1662 data points

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