@prefix adms: <http://www.w3.org/ns/adms#> .
@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dcatapit: <http://dati.gov.it/onto/dcatapit#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <http://schema.org/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix spdx: <http://spdx.org/rdf/terms#> .
@prefix time: <http://www.w3.org/2006/time> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.ingv.it/dataset/568> a dcatapit:Dataset,
        dcat:Dataset ;
    dct:accrualPeriodicity <http://publications.europa.eu/resource/authority/frequency/NEVER> ;
    dct:creator [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "https://orcid.org/0000-0003-3944-201X#222" ;
            foaf:name "SAGNOTTI Leonardo [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy]"@en,
                "SAGNOTTI Leonardo [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy]"@it ],
        [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "https://orcid.org/0000-0002-5257-604X#3021" ;
            foaf:name "JUST Janna [University of Cologne, Germany]"@en,
                "JUST Janna [University of Cologne, Germany]"@it ],
        [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "https://orcid.org/0000-0002-0370-5802#3019" ;
            foaf:name "FRANCKE Alexander [University of Cologne, Germany]"@en,
                "FRANCKE Alexander [University of Cologne, Germany]"@it ],
        [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "https://orcid.org/0000-0002-9902-8120#3026" ;
            foaf:name "VOGEL Hendrik [University of Bern, Switzerland]"@en,
                "VOGEL Hendrik [University of Bern, Switzerland]"@it ],
        [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "https://orcid.org/0000-0002-6329-2149#3022" ;
            foaf:name "LACEY Jack H [British Geological Survey (BGS), United Kingdom]"@en,
                "LACEY Jack H [British Geological Survey (BGS), United Kingdom]"@it ],
        [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "https://orcid.org/0000-0002-3362-0578#3024" ;
            foaf:name "NOWACZYK Norbert R [Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum (GFZ), Germany]"@en,
                "NOWACZYK Norbert R [Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum (GFZ), Germany]"@it ],
        [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "#3027" ;
            foaf:name "WAGNER Bernd [University of Cologne, Germany]"@en,
                "WAGNER Bernd [University of Cologne, Germany]"@it ] ;
    dct:description "The bulk magnetic mineral record from Lake Ohrid, spanning the past 637 kyr, reflects large-scale shifts in hydrological conditions, and, superimposed, a strong signal of environmental conditions on glacial–interglacial and millennial timescales. A shift in the formation of early diagenetic ferrimagnetic iron sulfides to siderites is observed around 320 ka. This change is probably associated with variable availability of sulfide in the pore water. We propose that sulfate concentrations were significantly higher before ~320 ka, due to either a higher sulfate flux or lower dilution of lake sulfate due to a smaller water volume. Diagenetic iron minerals appear more abundant during glacials, which are generally characterized by higher Fe/Ca ratios in the sediments.While in the lower part of the core the ferrimagnetic sulfide signal overprints the primary detrital magnetic signal, the upper part of the core is dominated by variable proportions of high- to low-coercivity iron oxides. Glacial sediments are characterized by high concentration of high-coercivity magnetic minerals (hematite, goethite), which relate to enhanced erosion of soils that had formed during preceding interglacials. Superimposed on the glacial–interglacial behavior are millennial-scale oscillations in the magnetic mineral composition that parallel variations in summer insolation. Like the processes on glacial–interglacial timescales, low summer insolation and a retreat in vegetation resulted in enhanced erosion of soil material. Our study highlights that rock-magnetic studies, in concert with geochemical and sedimentological investigations, provide a multi-level contribution to environmental reconstructions, since the magnetic properties can mirror both environmental conditions on land and intra-lake processes." ;
    dct:identifier "10.1594/pangaea.848639" ;
    dct:issued "2015-01-01T00:00:00"^^xsd:dateTime ;
    dct:language <http://publications.europa.eu/resource/authority/language/ITA> ;
    dct:modified "2021-06-10T00:00:00"^^xsd:dateTime ;
    dct:publisher [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "N/A" ;
            foaf:name "PANGAEA - Data Publisher for Earth & Environmental Science"@it ] ;
    dct:rightsHolder [ a dcatapit:Agent,
                foaf:Agent ;
            dct:identifier "ingv" ;
            foaf:name "Istituto Nazionale di Geofisica e Vulcanologia"@it ] ;
    dct:spatial [ a dct:Location ;
            locn:geometry "MULTIPOINT ((20.7150 41.0492))"^^gsp:wktLiteral,
                "{\"type\": \"MultiPoint\",\"coordinates\": [[20.715,41.0492]]}"^^<https://www.iana.org/assignments/media-types/application/vnd.geo+json> ] ;
    dct:title "Downcore rock-magnetic properties of ICDP Core 5045-1, Lake Ohrid" ;
    adms:identifier [ dct:creator [ a dcatapit:Agent,
                        foaf:Agent ;
                    foaf:name "INGV"@en,
                        "INGV"@it ] ;
            skos:notation "ingv_568" ] ;
    dcat:contactPoint <https://data.ingv.it/organization/ingv> ;
    dcat:keyword "ambiente" ;
    dcat:landingPage <https://data.ingv.it/dataset/568> ;
    dcat:theme <http://publications.europa.eu/resource/authority/data-theme/TECH> .

<http://publications.europa.eu/resource/authority/data-theme/TECH> a skos:Concept ;
    skos:prefLabel "Wissenschaft und Technologie"@de,
        "Science and technology"@en,
        "Ciencia y tecnología"@es,
        "Science et technologie"@fr,
        "Scienza e tecnologia"@it .

<https://data.ingv.it/organization/ingv> a dcatapit:Organization,
        vcard:Kind,
        vcard:Organization,
        foaf:Organization ;
    vcard:fn "ingv" ;
    vcard:hasEmail <aoo.roma@pec.ingv.it> ;
    vcard:hasTelephone "" ;
    vcard:hasURL "http://www.ingv.it/it/" ;
    foaf:name "PANGAEA - Data Publisher for Earth & Environmental Science" .