Here are some animations showing the location of igneous, metamorphic and cooling through time. The animations are based on downloads of locality and attribute information from the DateView geochronology database. Note that, although the database contains in excess of 60,000 records (as at Dec 2007), not all of these have geographic coordinates. Also, note that the distribution of activity is also a function of data coverage in the database and of the distribution of rocks available for sampling.

These animations are currently intended to illustrate data in the database and to facilitate checking of the data, but they also help visualise where different types of activity were occuring through time.

Africa geochronology through time






North America geochronology through time






Australia and New Zealand geochronology through time






Global geochronology through time (Mollweide projection)