Gregoire
You might want to look at the works of Fritz Agterberg (Ontario, Canada) who
has been researching potential targets for over 35 years. I do not have any
recent references but a web search should be possible.
Isobel
http://www.kriging.com
--- On Mon, 12/13/10, Gregoire Dubois
There are many data sets on our web site at http://www.kriging.com which are
free to all and in a simple text file format. They range from large scale
production mining data sets through exploration to envirnmental and
agricultural data.
Isobel
--- On Mon, 7/19/10, Younes Fadakar