@prefix adms: <http://www.w3.org/ns/adms#> .
@prefix dcatap: <http://data.europa.eu/r5r/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns14: <http://spdx.org/rdf/terms#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .

<http://metadata.bgs.ac.uk/geonetwork/api/collections/main/items/ee4a8894-5609-37a7-e053-0937940a6b49>
  a dcat:CatalogRecord, foaf:Document;
  dct:identifier "ee4a8894-5609-37a7-e053-0937940a6b49";
  dct:created "2025-06-21T00:00:00Z";
  dct:modified "2026-10-07T00:00:00Z";
  dct:language <http://publications.europa.eu/resource/authority/language/ENG>;
  foaf:primaryTopic <http://metadata.bgs.ac.uk/geonetwork/api/collections/main/items/ee4a8894-5609-37a7-e053-0937940a6b49#resource>;
  dct:title "ShapeCalc - 2D-3D shape projection tool and underlying database of 2D width/length distributions" .

<http://publications.europa.eu/resource/authority/language/ENG> a skos:Concept, dct:LinguisticSystem;
  skos:prefLabel "eng" .

<http://metadata.bgs.ac.uk/geonetwork/api/collections/main/items/ee4a8894-5609-37a7-e053-0937940a6b49#resource>
  a dcat:Dataset;
  dct:title "ShapeCalc - 2D-3D shape projection tool and underlying database of 2D width/length distributions";
  dct:description "ShapeCalc is an Excel-based tool that uses 2D crystal intersection widths and lengths to estimate 3D crystal shape. ShapeCalc provides 3D (S:I:L) shape estimates for 2D width-length (w-l) input data. Best estimates are found by comparing the sample w/l distribution with 2618 model w/l distributions covering shapes from 1:1:1 to 1:20:20. Model w/l distributions are obtained by 20000 random sections of a given model shape using the CSDCorrections algorithm (Higgins, 2000). For each model shape, the 20000 w/l datapoints are binned into 25 bins with w/l increments of 0.04. Binned distributions for all 2618 models are stored in the database tab. Compared to existing 2D-to-3D projection tools, ShapeCalc offers more robust constraints in 3D crystal shape (including uncertainty estimates) for a wider range of naturally occurring crystal shapes. ShapeCalc is described and published, with open access; Mangler, M.F., Humphreys, M.C.S., Wadsworth, F.B. et al. Variation of plagioclase shape with size in intermediate magmas: a window into incipient plagioclase crystallisation. Contributions to Mineralogy and Petrology 177, 64 (2022). https://doi.org/10.1007/s00410-022-01922-9";
  dct:identifier "http://data.bgs.ac.uk/id/dataHolding/13607999";
  dct:created "2022-11-15T00:00:00Z";
  dct:modified "2026-10-07T00:00:00Z";
  dct:language <http://publications.europa.eu/resource/authority/language/ENG>;
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  dct:provenance _:node1k4bdo1kax52919 .

_:node1k4bdo1kax52901 a vcard:Kind;
  vcard:title "University of Durham";
  vcard:role "originator";
  vcard:hasEmail "not available" .

_:node1k4bdo1kax52902 a vcard:Kind;
  vcard:title "British Geological Survey";
  vcard:role "distributor";
  vcard:hasEmail "not available" .

_:node1k4bdo1kax52903 a vcard:Kind;
  vcard:title "British Geological Survey";
  vcard:role "pointOfContact";
  vcard:hasEmail "not available" .

_:node1k4bdo1kax52904 a skos:Concept;
  skos:prefLabel "NERC_DDC" .

_:node1k4bdo1kax52905 a skos:Concept;
  skos:prefLabel "NGDC Deposited Data" .

_:node1k4bdo1kax52906 a skos:Concept;
  skos:prefLabel "Crystallography" .

_:node1k4bdo1kax52907 a skos:Concept;
  skos:prefLabel "Models" .

_:node1k4bdo1kax52908 a skos:Concept;
  skos:prefLabel "Geology" .

_:node1k4bdo1kax52909 a skos:Concept;
  skos:prefLabel "Dataset" .

_:node1k4bdo1kax52910 a dct:PeriodOfTime;
  dcat:startDate "2020-09-01T00:00:00Z";
  dcat:endDate "2021-12-01T00:00:00Z" .

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  prov:wasDerivedFrom _:node1k4bdo1kax52913 .

_:node1k4bdo1kax52913 dct:title "INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology" .

<http://inspire.ec.europa.eu/metadata-codelist/DegreeOfConformity/notConformant> a
    rdf:type .

_:node1k4bdo1kax52914 a prov:Activity;
  prov:used <local:http://data.bgs.ac.uk/id/dataHolding/13607999>;
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_:node1k4bdo1kax52915 a prov:hadPlan;
  prov:wasDerivedFrom _:node1k4bdo1kax52916 .

_:node1k4bdo1kax52916 dct:title "Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services" .

_:node1k4bdo1kax52917 a dcat:Distribution;
  dcat:accessURL <https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item176824>;
  dct:title "Data";
  adms:representationTechnique _:node1k4bdo1kax52918 .

_:node1k4bdo1kax52918 a skos:Concept;
  skos:prefLabel "WWW:DOWNLOAD-1.0-http--download" .

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    dct:Frequency .

_:node1k4bdo1kax52919 a dct:ProvenanceStatement;
  rdfs:label "Underlying database of w/l distributions (20,000 datapoints each) for 2618 model shapes from 1:1:1 to 1:20:20 was produced using the CSDCorrections algorithm (Higgins, 2000)" .