There are many types of derivative data that we would like to include in the database, because these may be of tremendous value to non-petrologists who wish to learn what is available from our science. For example, a structural geologist working in an area may be interested in the P-T conditions that are constrained by the petrology. He or she may not wish to examine the raw data, but only the resulting P-T calculations. While we know that this approach is fraught with innumerable pitfalls, we envision a system where the data would be presented with a sense of its uncertainty so that unwise use could be kept to a minimum.
Details of how derivative data should be handled will be addressed later in the project
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