@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description """
              The redox conditions prevailing during the formation of vanadiferous titanomagnetites from three layered intrusions (Bushveld; Koillismaa; Skaergaard) have been estimated from the valence state of vanadium using synchrotron X-ray absorption near edge structure spectroscopy (XANES). Using a high energy-resolution X-ray emission spectrometer, we show that vanadium occurs mostly as V3+, with minor V4+. The most concentrated samples (up to 2.4 wt% V2O3) contain approximately 10% of vanadium as V4+. Both V3+ and V4+ occur in the octahedral site of the spinel structure. Considering the low magnetite/melt V4+ partition coefÞ cients, this suggests that vanadium ores crystallized under speciÞ c oxidizing conditions.
            """ ;
    dct:identifier "hal-00079558" ;
    dct:issued "2026-05-13T22:14:12.755621"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-13T22:14:12.755626"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "The oxidation state of vanadium in titanomagnetite from layered basic intrusions." ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00079558v1/resource/58c853f8-e55c-4fb5-bfd6-d5527c3ae69d> ;
    dcat:keyword "igneous-petrology",
        "infoeu-reposemanticsarticle",
        "journal-articles",
        "new-technique",
        "trace-elements",
        "xas-xanes" ;
    dcat:landingPage <ISSN:%200003-004X> .

<ISSN:%200003-004X> a foaf:Document .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00079558v1/resource/58c853f8-e55c-4fb5-bfd6-d5527c3ae69d> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-13T22:14:12.798274"^^xsd:dateTime ;
    dct:modified "2026-05-13T22:14:12.733648"^^xsd:dateTime ;
    dct:title "The oxidation state of vanadium in titanomagnetite from layered basic intrusions." ;
    dcat:accessURL <https://hal.science/hal-00079558> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
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