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Characteristics of Porphyry Gold Deposits by Sandra Valdez is a document available to read on EtoBox.

- "Porphyry" gold deposits are intrusion-related gold systems associated with intermediate to felsic magmatism. They are characterized by gold and other metals like bismuth, tellurium, tungsten and molybdenum hosted in reduced, low-sulfide environments. - Major examples discussed include the Fort Knox (>5M oz Au) and Dublin Gulch (~2M oz Au) deposits in the Yukon, characterized by sheeted and breccia vein styles in granite intrusions. The Pogo deposit (>5M oz Au) in Alaska occurs in a similar geological s

Author

Sandra Valdez

Language

EN