Abstract:
OneGeology is the world's biggest geological mapping project. This organization has made geological maps from around the globe accessible on the internet through the OneGeology Portal. 110 nations are currently participating, represented by their Geological Surveys. The OneGeology Portal delivers digital geological map data from its source in participating nations using Web Map Service technology
... - using a distributed, dynamic, and sustainable model. The portal includes over 170 years of continuous scientific survey and research data. Thousands of rock units are mapped dating from more than 3000 million years ago.
The objectives of the initiative include:
1) make existing geological map data accessible in whatever digital format is available in each country.
2) transfer know-how to those who need it, adopting an approach that recognises that different nations have differing abilities to participate.
3) stimulate a rapid increase in interoperability, achieved through the development and use of the web mark-up language, GeoSciML. 
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