This service shows the Principal Hydrogeological Divisions of Australia which was produced from the 1:5,000,000 scale Hydrogeology of Australia map (Jacobsen and Lau, 1987).

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GeoSciML v3 (www.geosciml.org) and EarthResourceML v2 (www.earthresourceml.org) are the latest releases of geoscience data transfer standards from the IUGS-CGI Interoperability Working Group (IWG). The data standards each comprise a UML model and complex features GML schemas, extending the spatial standards of the Open Geospatial Consortium (OGC), including GML v3.2, O&M v2, and SWE Common v2. Future development of GeoSciML and EarthResourceML will occur under a collaborative IUGS-OGC arrangement. GeoSciML covers a wide range of geological data, including geological units, structures, earth materials, boreholes, geomorphology, petrophysical properties, and sampling and analytical metadata. The model was refactored from a single application schema in version 2 into a number of smaller, more manageable schemas in version 3. EarthResourceML covers solid earth resources (mineral occurrences, resources and reserves) and their exploitation (mines and mining activities). The model has been extended to accommodate the requirements of the EU INSPIRE data sharing initiative, seeing the addition of mineral exploration activity and environmental aspects (ie, mining waste) to the model. GeoSciML-Portrayal is a simple-features GML application schema based on a simplified core of GeoSciML. It supports presentation of geological map units, contacts, and faults in Web Map Services, and provides a link between simple-feature data delivery and more complex GeoSciML WFS services. The schema establishes naming conventions for fields commonly used to symbolize geological maps to enable visual harmonization of map services. The IWG have established a vocabulary service at http://resource.geosciml.org, serving geoscience vocabularies in RDF-SKOS format. Vocabularies are not included in GeoSciML and EarthResourceML, but the models recommend a standard pattern to reference controlled vocabularies using HTTP-URI links. GeoSciML and EarthResourceML have been adopted or recommended as the data exchange standards in key international interoperability initiatives, including OneGeology, the INSPIRE project, the US Geoscience Information Network, and the Australia/NZ Government Geoscience Information Committee.

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