Porter GeoConsultancy Pty Ltd (PGC) provides access to this database at no charge.   It is based on material prepared for the PGC International Study Tour series, PGC Literature Service and extracts from PGC publications.   It was current at the time of the last visit to that deposit or district, or when each source/paper consulted was published.   While we endeavour to ensure the information was accurate at the time of compilation, PGC takes no responsibility what-so-ever for inaccurate or out of date data, information or interpretations. ......... MORE