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Geological characteristics and tectonic setting of proterozoic iron oxide (CuUAuREE) deposits
Recent work on the Olympic Dam CuUAuAg deposit, South Australia, the Wernecke Mountain breccias, Yukon, the Kiruna iron ore district, Sweden, and the southeast Missouri iron ore district, and aExpand
Sulfidation State of Fluids in Active and Extinct Hydrothermal Systems: Transitions from Porphyry to Epithermal Environments
Use of the concept of "sulfidation state", in parallel with oxidation state, in the study of ore deposits finds its beginnings with the studies of Reno Sales and Charles Meyer at Butte, Montana.Expand
Wall-rock alteration and hydrothermal flow paths about the Ann-Mason porphyry copper deposit, Nevada; a 6-km vertical reconstruction
Surface exposures in the Singatse Range at the Ann-Mason deposit yield a nearly complete vertical cross section, from 1 to 6 km in paleodepth, through one of three porphyry Cu deposits geneticallyExpand
Origin of hydrothermal fluids at Olympic Dam; preliminary results from fluid inclusions and stable isotopes
Fluid inclusions and stable isotope data provide evidence of the temperature, composition, and sources of hydrothermal fluids associated with formation of the Fe-rich breccias that host Cu-U-Au-AgExpand
Origin of rare earth element-enriched hematite breccias at the Olympic Dam Cu-U-Au-Ag deposit, Roxby Downs, South Australia
Hematite breccias, the host rocks to Cu-U-Au-Ag ore at the Olympic Dam deposit, occur as steeply dipping, northwest-striking, dikelike bodies within fractured granite. The breccia complex has aExpand
Copper deposition by fluid cooling in intrusion-centered systems: New insights from the Bingham porphyry ore deposit, Utah
Quartz veins in porphyry copper deposits record the physiochemical evolution of fluids in subvolcanic magmatic-hydrothermal systems. We have combined cathodoluminescence (CL) petrography withExpand
Copper deposition during quartz dissolution by cooling magmatic–hydrothermal fluids: The Bingham porphyry
Abstract Scanning electron microscope cathodoluminescence imaging is used to map successive generations of fluid inclusions in texturally complex quartz veinlets representing the main stage of oreExpand
Introduction; terminology, classification, and composition of skarn deposits
$KARN deposits occur throughout a broad range of geologic environments from Precambrian to late Tertiary age. Most deposits of economic importance are relatively young, however, and are related toExpand
Geochemical and mineralogical controls on trace element release from the Penn Mine base-metal slag dump, California
Base-metal slag deposits at the Penn Mine in Calaveras County, California, are a source of environmental contamination through leaching of potentially toxic elements. Historical Cu smelting at PennExpand