Affiliate Associations

IUGS Commission on Global Geochemical Baselines


The Commission on ‘Global Geochemical Baselines’ (CGGB) operates under the auspices of the International Union of Geological Sciences (IUGS). The mission of the Commission is to prepare a global geochemical database, and its representation in map form, to document the concentration and distribution of chemical elements and species in the Earth’s near-surface environment. This database is urgently needed by decision makers, scientists, researchers, environmental and resource managers throughout the world, and the general public. To reach this goal, the Commission promotes and facilitates the implementation of harmonised sampling, sample preparation, quality control, and analytical protocols in geochemical mapping programmes. Commission activities include the following:

  • Developing partnerships with countries conducting broad-scale geochemical mapping studies;
  • Providing consultation and training in the form of workshops and short courses;
  • Organising periodic international symposia and conferences to foster communication among the geochemical mapping community;
  • Developing criteria for certifying those projects that are acceptable for inclusion in a global database;
  • Acting as a repository for data collected by projects meeting the standards of harmonisation;
  • Preparing complete metadata for the various certified projects; and ultimately
  • Preparing a global geochemical database and atlas.


International Union of Geological Sciences (IUGS)

(*The AAG was an official supporting organization for the 34th International Geological Congress in Brisbane, Australia, August 2-12, 2012.  The 36th IGC will be held in Delhi, 2-8 March 2020.)