How to map data to GeoSciML
(Outline)
Section 1 – Introduction
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What the cookbook is for
Who it is aimed at
How it relates to other documentation and available resources
Section 2 – Background and scope
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Brief outline of the background to the development of the model
The purpose of the model
Define the current (and future?) scope of the model
Section 3 – Overview of the model
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The main concepts underlying the model
Describe the features/data types/relations (and the more significant properties)
within each package
Describe the relation between packages
Describe the GeoSciML use of externally governed packages
Section 4 – Best practice guidelines

Describe each (significant) best practice guideline that is agreed (eg are maps
collections of mapped features, are boreholes collections of mapped features,
how should vocabularies be implemented). These need to be agreed in
Melbourne.
Section 5 – Worked examples
I think each worked example should show (a sample of) the originating data, describe
the way it was mapped to the model, and show the resulting instance document.
These examples must be consistent and represent agreed best practice – they
should not show different ways of doing the same thing. I have added a BGS
example below to show the approach.
Examples should include:
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Lithostatigraphic map with normative classifiers (eg published map),
chronostraigraphic age, and lithology. This will meet the OneGeology
requirement
Lithostratigraphic map with instance descriptions (eg survey scale/field map)
Structural features – contacts and faults
Structural measurements (eg point observations)
Earth Material – as vocabulary and as instance description of GeologicUnit
Stratigraphic lexicon
 Boreholes (need to define what types)
 What else????
Examples of examples
Lithostratigraphic unit
The Original Data:
The Mapping method:
1. The map is a GSML collection of MappedFeatures, Each polygon on the map is
one MappedFeature
2. The positionalAccuracy of the MappedFeature should be recorded or stated as
‘unknown’
3. The observationMethod of each MappedFeature should be recorded eg ‘field
observation’. There may be more than one observationMethod
4. The samplingFrame is the surface of mapping (Rockhead (geological))
5. Each MappedFeature is specified using LithostratigraphicUnit
6. The gml:name should be used to record the name of the LithostratigraphicUnit
7. The observationMethod for the LithostratigraphicUnit as a whole, as opposed to
the specific MappedFeature, should be recorded eg ‘Summary of published
description’
8. The ‘purpose’ is used to state whether the LithostratigraphicUnit description is for
a normative definition (eg from a stratigraphic lexicon) or a particular instance
9. The preferredAge is used to record the age of the LithostratigraphicUnit either as
a single value or as a range. Numeric values or chronostratigraphic units can be
used
10. Composition is used to define the lithology of the unit, with values drawn from a
list of defined lithology terms. A composition can be made up of multiple
lithologies each defined by a ‘proportion’, defining the amount of each making up
the whole (eg 100%), and ‘role’ (eg dominant constituent)
The GeoSciML for the Lithostratigraphic Unit:
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-
-
<?xml version="1.0" encoding="UTF-8" ?>
- <!-Example mapped feature from BGS data.
-->
<GSML xmlns="http://www.cgi-iugs.org/xml/GeoSciML/2" gml:id="mf.1"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml"
xmlns:swe="http://www.opengis.net/swe/1.0"
xmlns:om="http://www.opengis.net/om/1.0"
xmlns:sa="http://www.opengis.net/sampling/1.0"
xmlns:cv="http://www.opengis.net/cv/0.2"
xmlns:geox="http://www.opengis.net/geomExt/0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/gml
http://schemas.opengis.net/gml/3.1.1/base/gml.xsd http://www.cgiiugs.org/xml/GeoSciML/2 http://www.cgiiugs.org/xml/GeoSciML/2/geosciml.xsd
http://www.opengis.net/swe/1.0
http://schemas.opengis.net/swe/1.0.0/swe.xsd
http://www.opengis.net/cv/0.2
http://schemas.opengis.net/cv/0.2.0/cv.xsd
http://www.opengis.net/om/1.0
http://schemas.opengis.net/om/1.0.0/om.xsd
http://www.opengis.net/sampling/1.0
http://schemas.opengis.net/sampling/1.0.0/sampling.xsd">
<member>
<MappedFeature>
<positionalAccuracy>
<CGI_TermValue>
<value
codeSpace="http://www.bgs.ac.uk/positionalAccuracyVocab">unknown<
/value>
</CGI_TermValue>
</positionalAccuracy>
<observationMethod>
<CGI_TermValue>
<value
codeSpace="http://www.bgs.ac.uk/observationMethodVocab">fieldObser
vation</value>
</CGI_TermValue>
</observationMethod>
<observationMethod>
<CGI_TermValue>
<value
codeSpace="http://www.bgs.ac.uk/observationMethodVocab">Boreholes
</value>
</CGI_TermValue>
</observationMethod>
- <samplingFrame>
- <sa:SamplingSurface>
- <!-Need MapHorizon specialisation here
-->
<sa:sampledFeature />
<sa:shape />
</sa:SamplingSurface>
</samplingFrame>
<shape />
- <specification>
- <LithostratigraphicUnit>
<gml:name>codeSpace="http://www.bgs.ac.uk/LithostratLexicon">DEEP
CONGLOMERATE FORMATION</gml:name>
- <observationMethod>
- <CGI_TermValue>
<value
codeSpace="http://www.bgs.ac.uk/observationMethodVocab">Summary
of published description</value>
</CGI_TermValue>
</observationMethod>
<purpose>instance</purpose>
- <preferredAge>
- <GeologicEvent>
- <eventAge>
- <CGI_TermRange>
- <lower>
- <CGI_TermValue>
<value
codeSpace="http://www.bgs.ac.uk/geochronVocab">LOCHKOVIAN</valu
e>
</CGI_TermValue>
</lower>
- <upper>
- <CGI_TermValue>
<value
codeSpace="http://www.bgs.ac.uk/geochronVocab">PRAGHIAN</value>
</CGI_TermValue>
</upper>
</CGI_TermRange>
</eventAge>
</GeologicEvent>
</preferredAge>
- <composition>
- <CompositionPart>
- <lithology>
- <ControlledConcept>
<preferredName>CONGLOMERATE</preferredName>
<vocabulary xlink:href="http://www.bgs.ac.uk/RCSVocab" />
</ControlledConcept>
</lithology>
- <proportion>
- <CGI_NumericValue>
<principalValue uom="percent">100</principalValue>
</CGI_NumericValue>
</proportion>
<role
codeSpace="http://www.bgs.ac.uk/roleVocab">dominantConstituent</rol
e>
</CompositionPart>
</composition>
</LithostratigraphicUnit>
</specification>
</MappedFeature>
</member>
- <member>
</GSML>