Version 2.0 has now been approved by GeoSciML committees for use.

The ContactFeature tab of this workbook indicates the content for Geologic Contact features. The entirety of the workbook is an information exchange workbook for GeoSciML-Portrayal, in which three features for WFS implementation are described (see alsohttp://schemas.usgin.org/models/#geosciml-portrayal-units and http://schemas.usgin.org/models/#geosciml-portrayal-faults). The model is based on the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/CGIModel/GeoSciMLPortrayalViewModel. This schema is a view of GeoSciML data that de-normalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels, will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features.