mineral zoning वाक्य

The company said it encountered a potentially significant mineral zone on its Voisey Bay property.
The mines are located on the " main lode system of the Juneau gold belt . " The " principal rock of the mineral zone is black graphite and calcareous slate with quartz veining.
The Pascua ore body is located in the Nevada mineral zone or Nevada hydrothermal alteration zone which is part of a regional area of gold-bearing hydrothermal alteration zones known as El Indio or Eastern belt.