Society of Economic Geologists

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The Society of Economic Geologists (SEG) serves 6,500+ members worldwide who are committed to advancing the science and the discovery of mineral resources through research, publications, courses, and field trips.
The tops and bottoms of porphyry copper deposits
Sillitoe,R. H.
Economic Geology(1973), 68 (6):799
http://dx.doi.org/10.2113/gsecongeo.68.6.799

Society of Economic Geologists
Society of Economic Geologists
GeoScienceWorld
GeoScienceWorld