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UA's Unique Attributes

Ten-Day Field Geology Course

Topics on Ore Deposits Mapping (GEOS 404B/504B)

This intensive course deals with advanced methods in ore deposits mapping. Hydrothermal fluid systems are examined in the context of local to regional structural and magmatic evolution, highlighting how mapping is used to understand mineral zoning, time-space relations, and fundamental phase equilibria. The course includes lectures, mapping exercises, and field trips.

Instructors

Mark Barton, faculty
Eric Seedorff, faculty
Lukas Zurcher, staff
and others TBA

Topics

1. Regional Metallogeny
2. Active Tectonics and geothermal systems
3. Time-Space Evolution of Magmatism, Tectonics, and Ore Deposits
4. Ore-forming Systems: Concepts and relevant phase diagrams
1. Cl and S metal complexing
2. Fluid flow paths
3. Fluid sources and paths in IOCG deposits
4. Alteration in quartz-feldspatic rocks
5. Alteration in carbonate rocks
6. Stabilities of Cu and Fe sulfides and Fe oxide minerals
7. Stabilities of low-temperature Cu, Fe, and Mn minerals
5. Mapping Scheme
6. Field trips and mapping exercises (modified as necessary)
1. Whipple-Buckskin-Rawhide Mtns. “Detachment”-related ore deposits
2. Oatman District low-sulfidation Au epithermal system
3. Goldfield high-sulfidation Au epithermal system
4. Tonopah low-sulfidation Ag-Au epithermal system
5. Birch Creek igneous-hydrothermal time-space relations in F-Be-W-(Zn) greisen/skarn
6. Long Valley Caldera active hydrothermal system
7. Yerington District dismembered porphyries and skarns
   • Yerington Cu porphyry mine
   • MacArthur Cu oxide mine
   • Ann Mason Cu deposit
   • Ludwig, Douglas Hill, and Casting Copper skarns
   • Pumpkin Hollow IOCG project
8. Humboldt Complex Buena Vista IOCG deposit
9. Eureka District superimposed systems
   • Archimedes, Windfall, and Rustler Carlin-type Au mines
   • Ruby Hill porphyry Mo-Cu to replacement Zn-Pb-Ag mine
   • McCullough Butte F-W-Zn-Be-(Mo-Sn) prospect
10. Robinson District porphyry Cu-(Mo-Au) and related skarn and distal Au-Ag deposits

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