Root zones of porphyry systems: Extending the porphyry model to depth

Economic Geology

Volumn 103, Issue 5, 2008, Pages 939-956

  Seedorff, Eric ^a   Barton, Mark D ^a   Stavast, William J A ^a,b   Maher, David J ^a  

^a The University of Arizona   (United States)

^b Freeport Exploration   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COPPER; CORUNDUM; CUPOLAS; DOMES; GRANITE; GROUNDWATER; IGNEOUS ROCKS; LEACHING; LEAKAGE (FLUID); MICA; MINERAL RESOURCES; MINERALS; ORE DEPOSIT GEOLOGY; ORE DEPOSITS; ORES; OXIDE MINERALS; QUARTZ; RECONSTRUCTION (STRUCTURAL); SILICA; SILICATE MINERALS;

AQUEOUS PHASE; ARIZONA; BIOLOGICAL CYCLES; COPPER SYSTEMS; EXSOLUTION; EXTERNAL-; FLUID FLOWS; GRANODIORITE; HYDROTHERMAL SYSTEMS; JURASSIC; MAGMATIC FLUIDS; MAGMATIC VOLATILES; MINERAL DEPOSITS; ORE BODIES; ORE FLUIDS; ORE FORMATIONS; PORPHYRY SYSTEMS; QUARTZ VEINS; ROCK ALTERATIONS; ROOT ZONES; SOURCE REGIONS; STRUCTURAL RECONSTRUCTIONS; TIME LINES;

TRANSPORT PROPERTIES;

BATHOLITH; FAULTING; HYDROTHERMAL ALTERATION; HYDROTHERMAL FLUID; HYDROTHERMAL SYSTEM; JURASSIC; MINERAL DEPOSIT; ORE BODY; PLUTON; PORPHYRY; QUARTZ VEIN; RHIZOSPHERE; SILICA; TILT; WALL ROCK;

ARIZONA; NEVADA; NORTH AMERICA; UNITED STATES;

ESPERANZA; STRONGYLURA STOLZMANNI;

EID: 58149279357     PISSN: 03610128     EISSN: None     Source Type: Journal    
DOI: 10.2113/gsecongeo.103.5.939     Document Type: Article

References (123)

1. Adams, K.D., and Wesnousky, S,G,, 1998, Shoreline processes and the age of the Lake Lahontan highstand in the Jessup embayment, Nevada: Geological Society of America Bulletin, v. 110, p. 1318-1332.
2. Aiuppa, A., Caleca, A., Federico, C., Gurrieri, S., and Valenza, M., 2004, Diffuse degassing of carbon dioxide at Somma-Vesuvius volcanic complex (southern Italy) and its relation with regional tectonics: Journal of Volcanology and Geothermal Research, v. 58, p. 55-79.
3. Alpers, C.N., and Brimhall, G.H, Jr., 1989, Paleohydrologic evolution and geochemical dynamics of cumulative supergene metal enrichment at La Escondida, Atacama desert, northern Chile: ECONOMIC GEOLOGY, v. 84, p. 229-255.
4. Ambrus, J., 1977, Geology of the El Abra porphyry copper deposit, Chile: ECONOMIC GEOLOGY, v. 72, p. 1062-1085.
5. Arcuri, T.L., and Brimhall, G.H, 2002, Animation model of west central South America from the Early Jurassic to Late Miocene, with some oil and gas implications: Search and Discovery Article no. 10033.
6. Barton, M.D., 1987, Lithophile-element mineralization associated with Late Cretaceous two-mica granites in the Great Basin: Geology, v. 15, p. 337-340.
7. Barton, M.D., 2000, Overview of the lithophile element-bearing magmatic-hydrothermal system at Birch Creek, White Mountains, California: Society of Economic Geologists Guidebook Series, v. 32, p. 9-26.
8. Barton, M.D., and Johnson, D.A., 1996, Evaporitic-source model for igneous -related Fe oxide-(REE-Cu-Au-U) mineralization: Geology, v. 24, p. 259-262.
9. Barton, M.D., 2000, Alternative brine sources for Fe-oxide(-Cu-Au) systems: Implications for hydrothermal alteration and metals, in Porter, T. M., ed., Hydrothermal iron oxide copper-gold and related deposits - a global perspective: Glenside, South Australia, Australian Mineral Foundation, p. 43-60.
10. Barton, M.D., Ilchik, R.P., and Marikos, M.A., 1991, Metasomatism: Mineralogical Society of America Reviews in Mineralogy, v. 26, p. 321-350.
11. Barton, M.D., Brown, J.G., Haxel, G.B., Hayes, T.S., Jensen, E.P., Johnson, D.A., Kamilli, R.J., Long, K.R., Maher, D.J., and Seedorff, E., 2005a, Center for mineral resources: U.S. Geological Survey-University of Arizona, Department of Geosciences Porphyry Copper Deposit Life Cycles Field Conference, Southeastern Arizona, May 21-22, 2002: U.S. Geological Survey Scientific Investigations Report 2005-5020, 50 p.
12. Barton, M.D., Jensen, E.P., and Ducea, M., 2005b, Fluid sources for IOCG (Candelaria, Punta del Cobre) and porphyry Cu-style mineralization, Copiapó batholith, Chile: Geologic and Sr isotopic constraints [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 316.
13. Battles, D.A., and Barton, M.D., 1995, Are-related sodic hydrothermal alteration in the western United States: Geology, v. 23, p. 913-916.
14. Bauer, H.L., Jr., Breitrick, R.A., Cooper, J J., and Anderson, J.A., 1966, Porphyry copper deposits in the Robinson mining district, Nevada, in Titley, S.R., and Hicks, C.L., eds., Geology of the porphyry copper deposits, southwestern North America: Tucson, Arizona, University of Arizona Press, p. 232-244.
15. Bird, D.K., Manning, C.E., and Rose, N.M., 1988, Hydrothermal alteration of Tertiary layered gabbros, East Greenland: American Journal of Science, v. 288, p. 405-457.
16. Bouzari, F., and Clark, A.H., 2006, Prograde evolution and geothermal affinities of a major porphyry copper deposit: The Cerro Colorado hypegene protore, I Región, northern Chile: ECONOMIC GEOLOGY , V. 101, p. 95-134.
17. Breitriek, R.A., and Lenzi, G.W, 1987, Pinto Valley copper deposit: Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch, Special Paper 5, p. 260-265.
18. Bridge, D.J., Lewis, P.D., and Godwin, C.I., 1996, The Early Jurassic, Cretaceous deformed Kerr Cu-Au porphyry deposit, Sulphurets gold camp, northwestern British Columbia, in Coyner, A.R., and Fahey, P.L., eds., Geology and ore deposits of the American Cordillera: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, Nevada, April 1995, v. 3, p. 1217-1228.
19. Burbey, T.J., and Prudic, D.E., 1991, Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states: U.S. Geological Survey Professional Paper 1409-D, 84 p.
20. Burnham, C.W., 1979, Magmas and hydrothermal fluids, in Barnes, H.L., ed., Geochemistry of hydrothermal ore deposits, 2nd Edition: New York, John Wiley and Sons, p. 71-136.
21. Burt, D.M., 1981, Acidity-salinity diagrams - application to greisen and porphyry deposits: ECONOMIC GEOLOGY, v. 76, p. 832-843.
22. Butler, W.C., 1971, Permian sedimentary environments in southeastern Arizona: Arizona Geological Society Digest 9, p. 71-93.
23. Candela, P.A., and Blevin, P.L., 1995, Do some miarolitic granites preserve evidence of magmatic volatile phase permeability?: ECONOMIC GEOLOGY, v. 90, p. 2310-2316.
24. Candela, P.A., and Piccoli, P.M., 2005, Magmatic processes in the development of porphyry-type ore systems: ECONOMIC GEOLOGY 100TH ANNIVERSARY VOLUME, p. 25-37.
25. Cannell, J.B., Cooke, D.R., Walshe, J.L., and Stein, H.J., 2005, Geology, mineralization, alteration, and structural evolution of the E1 Teniente porphyry Cu-Mo deposit: ECONOMIC GEOLOGY, V. 100, p. 979-1003.
26. Carten, R.B., 1986, Sodium-calcium metasomatism: Chemical, temporal, and spatial relationships at the Yerington, Nevada, porphyry copper deposit: ECONOMIC GEOLOGY, v. 81, p. 1495-1519.
27. Carten, R.B., Geraghty E.P, Walker, B.M., and Shannon, J.R., 1988, Cyclic development of igneous features and their relationship to high-temperature hydrothermal features in the Henderson porphyry molybdenum deposit, Colorado: ECONOMIC GEOLOGY, v. 83, p. 266-296.
28. Casselman, M.J., McMillan, W.J., and Newman, K.M., 1995, Highland Valley porphyry copper deposits near Kamloops, British Columbia: A review and update with emphasis on the Valley deposit, in Schroeter, T.G., ed., Porphyry deposits of the northwestern Cordillera of North America: Canadian Institute of Mining, Metallurgy and Petroleum, Special Volume 46, p. 161-191.
29. 39Ar ages of early- and late-stage alteration assemblages, Rosario porphyry copper-molybdenum deposit, Collahuasi district, I Región, Chile: ECONOMIC GEOLOGY, V. 93, p. 326-337.
30. Cline, J.S., and Bodnar, R.J., 1991, Can economic porphyry copper mineralization be generated by a typical calc-alkaline melt?: Journal of Geophysical Research, v. 96, p. 8113-8126.
31. Core, D.P., Kesler, S.E., and Essene, E.J., 2006, Unusually Cu-rich magmas associated with giant porphyry copper deposits: Evidence from Bingham, Utah: Geology, v. 34, p. 41-44.
32. Cornwall, H.R., 1982, Petrology and chemistry of igneous rocks: Ray porphyry copper district, Pinal County, Arizona, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 259-273.
33. Cox, S.F., 2005, Coupling between deformation, fluid pressures, and fluid flow in ore-producing hydrothermal systems at depth in the crust: ECONOMIC GEOLOGY 100TH ANNIVERSARY VOLUME, p. 39-75.
34. Dickinson, W.R., 1989, Tectonic setting of Arizona through geologic time: Arizona Geological Society Digest 17, p. 1-16.
35. Dickinson, W.R., 2002, The Basin and Range province as a composite extensional domain: International Geology Review, v. 44, p. 1-38.
36. Dilles, J.H., 1987, Petrology of the Yerington batholith, Nevada: Evidence for evolution of porphyry copper ore fluids: ECONOMIC GEOLOGY, v. 82, p. 1750-1789.
37. Dilles, J.H., 2000, Cupolas and convection in crystallizing granitoids as a means of extracting aqueous fluids to produce porphyry Cu-Mo-Au deposits [abs.]: Geological Society of America Abstracts with Programs, v. 32, no. 7, p. A51.
38. Dilles, J.H,, and Einaudi, M.T., 1992, Wall-rock alteration and hydrothermal flow paths about the Ann-Mason porphyry copper deposit, Nevada - A 6km vertical reconstruction: ECONOMIC GEOLOGY, v. 87, p. 1963-2001.
39. Dilles, J.H., Solomon, G.C., Taylor, H.P., Jr., and Einaudi, M.T., 1992, Oxygen and hydrogen isotope characteristics of hydrothermal alteration at the Ann-Mason porphyry copper deposits, Yerington, Nevada: ECONOMIC GEOLOGY, v. 87, p. 44-63.
40. Dilles, J.H., Farmer, G.L., and Field, C.W., 1995, Sodium-calcium alteration by non-magmatic saline fluids in porphyry copper deposits: Results from Yerington, Nevada: Mineralogical Association of Canada Short Course, v. 23, p. 309-338.
41. Dilles, J.H., Einaudi, M.T., Proffett, J., and Barton, M.D., 2000, Overview of the Yerington porphyry copper district: Magmatic to nonmagmatic sources of hydrothermal fluids: Their flow paths and alteration effects on rocks and Cu-Mo-Fe-Au ores: Society of Economic Geologists Guidebook Series, v. 32, p. 55-66.
42. Durning, W.P., and Davis, J.D., 1978, The root-zone characteristics of porphyry copper deposits: Arizona Geological Society Digest 11, p. 81-89.
43. Einaudi, M.T., and Burt, D.M., 1982, Introduction - terminology, classification, and composition of skarn deposits: ECONOMIC GEOLOGY , v. 77, p. 745-754.
44. Einaudi, M.T., Hedenquist, J.W., and Inan, E.E., 2003, Sulfidation state of fluids in active and extinct hydrothermal systems: Transitions from porphyry to epithermal environments: Society of Economic Geologists Special Publication 10, p. 285-313.
45. Emmons, W.H., 1927, Relations of the disseminated copper ore in porphyry to igneous intrusives: American Institute of Mining and Metallurgical Engineers Transactions, v. 75, p. 797-815.
46. Fournier, R.O., 1999, Hydrothermal processes related to movement of fluid from plastic into brittle rock in the magmatic-epithermal environment: ECONOMIC GEOLOGY, v. 94, p. 1193-1211.
47. Geissman, J.W., Van der Voo, R., and Howard, K.L., 1982, Paleomagnetic study of the structural deformation in the Yerington district, Nevada. 1. Tertiary units and their tectonism. 2. Mesozoic "basement" units and their total and pre-Oligocene tectonism: American Journal of Science, v. 282, p. 1042-1109.
48. Giggenbach, W.F., Shinohara, H., Kusakabe, M., and Ohba, T., 2003, Formation of acid volcanic brines through interaction of magmatic gases, seawater, and rock within the White Island volcanic-hydrothermal system, New Zealand: Society of Economic Geologists Special Publication 10, p. 19-40.
49. Goff, F., Stimac, J.A., Larocque, A.C.L., Hulen, J.B., McMurtry, G.M., Adams, A.I., Roldán-M., A., Trujillo, P.E., Jr., Counce, D., Chipera, S.J., Mann, D., and Heizler, M., 1994, Gold degassing and deposition at Galeras volcano, Colombia: GSA Today, v. 4, p. 241, 244-247.
50. Gustafson, L.B., and Hunt, J.P., 1975, The porphyry copper deposit at El Salvador, Chile: ECONOMIC GEOLOGY, v. 70, p. 857-912.
51. Gustafson, L.B., and Quiroga G., J., 1995, Patterns of mineralization and alteration below the porphyry copper orebody at El Salvador, Chile: ECONOMIC GEOLOGY, v. 90, p. 2-16.
52. Hammer, D.F., and Peterson, D.W., 1968, Geology of the Magma mine area, Arizona, in Ridge, J.D., ed., Ore Deposits of the United States, 1933-1967 (Graton-Sales Volume): New York, American Institute of Mining, Metallurgical, and Petroleum Engineers, v. 2, p. 1282-1310.
53. Hanson, R.B., 1996, Hydrodynamics of magmatic and meteoric fluids in the vicinity of granitic intrusions: Transactions of the Royal Society of Edinburgh, Earth Sciences, v. 87, p. 251-259.
54. Hedenquist, J.W., and Lowenstern, J.B., 1994, The role of magmas in the formation of hydrothermal ore deposits: Nature, v. 370, p. 519-527.
55. Hedenquist, J.W., Simmons, S.F., Giggenbach, W.F., and Eldridge, C.S., 1993, White Island, New Zealand, volcanic-hydrothermal system represents the geochemical environment of high-sulfidation Cu and An ore deposition: Geology, v. 21, p. 731-734.
56. Hemley, J.J., and Jones, W.R., 1964, Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism: ECONOMIC GEOLOGY , v. 59, p. 538-569.
57. 2O and some general implications for alteration/mineralization processes: ECONOMIC GEOLOGY, v. 75, p. 210-228.
58. Herrmann, M. A., 2001, Episodic magmatism and hydrothermal activity, Pima mining district, Arizona: Unpublished M.S. thesis, Tucson, Arizona, Universitv of Arizona, 44 p.
59. Hildreth, W., 1981, Gradients in silicic magma chambers: Implications for lithospheric magmatism: Journal of Geophysical Research, v. 86, p. 10,153-10,192.
60. Hildreth, W., and Lanphere, M.A., 1994, Potassium-argon geochronology of a basalt-andesite-dacite are system: The Mount Adams volcanic field, Cascade Range of southern Washington: Geological Society of America Bulletin, v. 106, p. 1413-1429.
61. Holliday, J.R., Wilson, A.J., Blevin, P.L., Tedder, I.J., Dunham, P.D., and Pfitzner, M., 2002, Porphyry gold-copper mineralisation in the Cadia district, eastern Lachlan fold belt, New South Wales, and its relationship to shoshonitic magmatism: Mineralium Deposita, v. 37, p. 100-116.
62. Johnson, D.A., 2000, Comparative studies of iron-oxide mineralization: Great Basin: Unpublished Ph.D. dissertation, Tucson, Arizona, University of Arizona, 451 p.
63. Johnson, D.A., and Barton, M.D., 2000, Time-space development of an external brine-dominated, igneous-driven bydrothermal system: Humboldt mafic complex, western Nevada: Society of Economic Geologists Guidebook Series, v. 32, p. 127-143.
64. Keith, J.D., Whitney, J.A., Hattori, K.H., Ballantyne, G.H., Christiansen, E.H., Barr, D.L., Carman, T.M., and Hook, C.J., 1997, The role of magmatic sulfides and mafic alkaline magmas in the Bingham and Tintic mining districts, Utah: Journal of Petrology, v. 38, p. 1679-1690.
65. Keith, J.D., Christiansen, E.H., Maughan, D.T., and Waite, K.A., 1998, The role of mafic alkaline magmas in felsic porphyry-Cu and Mo systems: Mineralogical Association of Canada Short Course, v. 26, p. 211-243.
66. Kirwin, D.J,, 2005, Unidirectional solidification textures associated with intrusion-related Mongolian mineral deposits, in Seltmann, R., Gerel, O., and Kirwin, D. J., eds., Geodynamics and metallogeny of Mongolia with a special emphasis on copper and gold deposits: London, Centre for Russian and Central Eurasian Mineral Studies, Natural History Museum, p. 63-84.
67. Klemm, L.M., 2005, Cu-Mo-Au ratios in porphyry-type ore deposits: Constraints from fluid inclusion microanalysis: Unpublished Dr. Sc. dissertation, Swiss Federal Institute of Technology (ETH) Zürich, 162 p.
68. Lang, J.R., Stanley, C.R., Thompson, J.F.H., and Dunne, K.P.E., 1995a, Na-K-Ca magmatic-hydrothermal alteration in alkalic porphyry Cu-Au deposits, British Columbia: Mineralogical Association of Canada Short Course, v. 23, p. 339-366.
69. Lang, J.R., Stanley, C.R., and Thompson, J.F.H., 1995b, Porphyry copper-gold deposits related to alkalic igneous rocks in the Triassic-Jurassic arc terranes of British Columbia: Arizona Geological Society Digest, v. 20, p. 219-236.
70. Lovering, T.G., Cooper, J.R., Drewes, H., and Cone, G.C., 1970, Copper in biotite from igneous rocks in southern Arizona as an ore indicator: U.S. Geological Survey Professional Paper 700-B, p. B1-B8.
71. Maher, D., Seedorff, E., and Barton, M., 2002, A new look at middle Tertiary dismemberment and rotation of Laramide porphyry systems in southern Arizona [abs.], in Marsh, E.E., Goldfarb, R.J., and Day, W.C., eds., Global Exploration 2002: Integrated Methods for Discovery: Society of Economic Geologists, Symposium, April 2002, Abstracts of Oral and Poster Presentations, p. 121.
72. Maher, D.J., Stavast, W.J.A., Barton, M.D., and Seedorff, E., 2005, A view of the roots of a productive Laramide porphyry copper system exposed in the Globe-Miami district, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 164.
73. Manning, C.E., and Bird, D.K., 1986, Hydrothermal clinopyroxenes of the Skaergaard intrusion: Contributions to Mineralogy and Petrology, v. 92, p. 437-447.
74. Manske, S.L., and Paul, A.H., 2002, Geology of a major new porphyry copper center in the Superior (Pioneer) district, Arizona: ECONOMIC GEOLOGY, v. 97, p. 197-220.
75. Meyer, C., Shea, E.P., Goddard, C.C., Jr., and staff, 1968, Ore deposits at Butte, Montana, in Ridge, J.D., ed., Ore deposits of the United States, 1933-1967 (Graton-Sales Volume): New York, American Institute of Mining, Metallurgical, and Petroleum Engineers, v. 2, p. 1373-1416.
76. Mortimer, C., 1973, The Cenozoic history of the southern Atacama Desert, Chile: Geological Society of London Journal, v. 129, p. 505-526.
77. Norton, D.L., and Taylor, H.P., Jr., 1979, Quantitative simulation of the hydrothermal systems of crystallizing magmas on the basis of transport theory and oxygen isotope data: An analysis of the Skaergaard intrusion: Journal of Petrology, v. 20, p. 355-419.
78. Olson, S.F., 1989, The stratigraphic and structural setting of the Potrerillos porphyry copper district, northern Chile: Revista Geológica de Chile, v. 16, p. 3-29.
79. Oviatt, C.G., 1997, Lake Bonneville fluctuations and global climate change: Geology, v. 25, p. 155-158.
80. Peterson, N.P., 1962, Geology and ore deposits of the Globe-Miami district, Arizona: U.S. Geological Survey Professional Paper 342, 151 p.
81. Phillips, C.H., Gambell, N.A., and Fountain, D.S., 1974, Hydrothermal alteration, mineralization, and zoning in the Ray deposits: ECONOMIC GEOLOGY, v. 69, p. 1237-1250.
82. Preece, R.K., III, and Beane, R.E., 1982, Contrasting evolutions of hydrothermal alteration in quartz monzonite and quartz diorite wall rocks at the Sierrita porphyry copper deposit, Arizona: ECONOMIC GEOLOGY, v. 77, p. 1621-1641.
83. Price, J.G., 1977, Geological history of alteration and mineralization at the Yerington porphyry copper deposits, Nevada: Unpublished Ph. D. dissertation, Berkeley, University of California, 168 p.
84. Proffett, J.M., Jr., 1977, Cenozoic geology of the Yerington district, Nevada, and implications for the nature and origin of Basin and Range faulting: Geological Society of America Bulletin, v. 88, p. 247-266.
85. Proffett, J.M., Jr., 2003, Geology of the Bajo de la Alumbrera porphyry copper-gold deposit, Argentina: ECONOMIC GEOLOGY, v. 98, p. 1535-1574.
86. Proffett, J.M., Jr., and Dilles, J.H., 1984, Geologic map of the Yerington district, Nevada: Nevada Bureau of Mines and Geology Map 77, scale 1:24,000.
87. Rapien, M.H., Bodnar, R.J., Simmons, S.F., Szabo, C.S., Wood, C.P, and Sutton, S.R., 2003, Melt inclusion study of the embryonic porphyry copper system at White Island, New Zealand: Society of Economic Geologists Special Publication 10, p. 41-59.
88. Rech, J.A., Quade, J., and Betancourt, J.L., 2002, Late Quaternary paleo-hydrology of the central Atacama desert (lat 22°-24°S), Chile: Geological Society of America Bulletin, v. 114, p. 334-348.
89. Redmond, P.B., Einaudi, M.T., Inan, E.E., Landtwing, M.R., and Heinrich, C.A., 2004, Copper deposition by fluid cooling in intrusion-centered systems: New insights from the Bingham porphyry ore deposit, Utah: Geology, v. 32, p. 217-220.
90. Reed, M.H., 1997, Hydrothermal alteration and its relationship to ore fluid composition, in Barnes, H.L., ed., Geochemistry of hydrothermal ore deposits, 3rd edition: New York, John Wiley and Sons, p. 303-365.
91. Rehrig, W.A., and Heidrick, T. L., 1972, Regional fracturing in Laramide stocks of Arizona and its relationship to porphyry copper mineralization: ECONOMIC GEOLOGY, v. 67, p. 198-213.
92. Rhode, D., Goebel, T., Graf, K.E., Hockett, B.S., Jones, K.T., Madsen, D.B., Oviatt, C.G., and Schmitt, D.N., 2005, Latest Pleistocene-early Holocene human occupation and paleoenvironmental change in the Bonneville Basin, Utah-Nevada: Geological Society of America Field Guide 6, p. 211-230.
93. Roedder, E., 1967, Fluid inclusions as samples of ore fluids, in Barnes, H. L., ed., Geochemistry of hydrothermal ore deposits: New York, Holt, Rinehart, and Winston, p. 513-574.
94. Roedder, E., 1971, Fluid inclusion studies on the porphyry-type ore deposits at Bingham, Utah, Butte, Montana, and Climax, Colorado: ECONOMIC GEOLOGY, v. 66, p. 98-120.
95. Rusk, B.G., and Reed, M.H., 2002, Scanning electron microscope-cathodoluminescence analysis of quartz reveals complex growth histories in veins from the Butte porphyry copper deposit, Montana: Geology, v. 30, p. 727-730.
96. Schmidt, E.A., 1971, A structural investigation of the northern Tortilla Mountains, Pinal County, Arizona: Unpublished Ph.D. dissertation, Tucson, Arizona, University of Arizona, 248 p.
97. Seedorff, E., and Einaudi, M.T., 2004a, Henderson porphyry molybdenum system, Colorado: I. Sequence and abundance of hydrothermal mineral assemblages, flow paths of evolving fluids, and evolutionary style: ECONOMIC GEOLOGY, v. 99, p. 3-37.
98. Seedorff, E., and Einaudi, M.T., 2004b, Henderson porphyry molybdenum system, Colorado: II. Decoupling of introduction and deposition of metals during geochemical evolution of hydrothermal fluids: ECONOMIC GEOLOGY, v. 99, p. 39-72.
99. Seedorff, E., Hasler, R.W., Breitrick, R.A., Fahey, P.L., Jeanne, R.A., Shaver, S.A., Stubbe, P., Troutman, T.W., and Manske, S.L., 1996, Overview of the geology and ore deposits of the Robinson district, with emphasis on its post-mineral structure, in Green, S.M., and Struhsacker, E., eds., Geology and ore deposits of the American Cordillera, Great Basin porphyry deposits: Geological Society of Nevada Field Trip Guidebook Compendium, 1995, Reno/Sparks, p. 87-91.
100. Seedorff, E., Dilles, J.H., Proffett, J.M., Jr., Einaudi, M.T., Zurcher, L., Stavast, W.J.A., Johnson, D.A., and Barton, M.D., 2005a, Porphyry deposits: Characteristics and origin of hypogene features: ECONOMIC GEOLOGY 100TH ANNIVERSARY VOLUME, p. 251-298.
101. Seedorff, E., Barton, M.D., Gehrels, G.E., Johnson, D.A., Maher, D.J., Stavast, W.J.A., and Flesch, E., 2005b, Implications of new U-Pb dates from porphyry copper-related plutons in the Superior-Globe-Ray-Christmas area, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 164.
102. Sell, J.D., 1995, Discovery of a deep (3500 feet) unexposed porphyry copper deposit at Superior East, Pinal County, Arizona: Arizona Geological Society Digest 20, p. 373-395.
103. Shannon, J.R., Walker, B.M., Carten, R.B., and Geraghty, E.P., 1982, Unidirectional solidification textures and their significance in determining relative ages of intrusions at the Henderson mine, Colorado: Geology, v. 10, p. 293-297.
104. Shaver, S.A., 1991, Geology, alteration, mineralization and trace element geochemistry of the Hall (Nevada Moly) deposit, Nye County, Nevada, in Raines, G. L., Lisle, R. E., Schafer, R.W., and Wilkinson, W.H., eds., Geology and Ore Deposits of the Great Basin: Geological Society of Nevada, Symposium, Reno/Sparks, April 1990, Proceedings, v. 1, p. 303-332.
105. Shinohara, H., Kazahaya, K., and Lowenstern, J.B., 1995, Volatile transport in a convecting magma column: Implications for porphyry Mo mineralization: Geology, v. 23, p. 1091-1094.
106. Sillitoe, R.H., 1973, The tops and bottoms of porphyry copper deposits: ECONOMIC GEOLOGY, v. 68, p. 799-815.
107. Sillitoe, R.H., and Thompson, J.F.H., 2006, Changes in mineral exploration practice: Consequences for discovery: Society of Economic Geologists, Special Publication 12, p. 193-219.
108. Skinner, B.J., 1997, Hydrothermal mineral deposits: What we do and don't know, in Barnes, H.L., ed., Geochemistry of hydrothermal ore deposits, 3rd edition: New York, John Wiley and Sons, p. 1-29.
109. Stavast, W.J.A., 2006, Three-dimensional evolution of magmatic hydrothermal systems, Schultze Granite and Ruby Star Granodiorite, Arizona: Unpublished Ph. D. dissertation, University of Arizona, 414 p.
110. Stavast, W.J.A., Barton, M.D., and Seedorff, E., 2007, Roots of a pluton and porphyry copper system, Pima district, Arizona: Ores and orogenesis: Circum-Pacific tectonics, geologic evolution, and ore deposits: Arizona Geological Society, Symposium, Tucson, September 2007, Field Trip 7 Guide-book, 15 p.
111. Stavast, W.J.A., Butler, R.F., Seedorff, E., Barton, M.D., and Ferguson, C.A., 2008, Tertiary tilting and dismemberment of the Laramide arc and related hydrothermal systems, Sierrita Mountains, Arizona: ECONOMIC GEOLOGY, v. 103, p. 629-636.
112. Stix, J., Zapata G., J.A., Calvache V, M., Cortés J., G.P., Fischer, T.P., Gómez M., D.M., Narvaez M., L., Ordoñez V., M., Ortega E., A., Torres C., R.A., and Williams, S.N., 1993, A model of degassing at Galeras volcano, Colombia, 1988-1993: Geology, v. 21, p. 963-967.
113. Taylor, S.R., and McLennan, S.M., 1985, The continental crust: Its composition and evolution: Oxford, England, Blackwell Scientific Publications, 312 p.
114. Titley, S.R., 1982, Some features of tectonic history and ore genesis in the Pima mining district, Pima County, Arizona, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, Arizona, University of Arizona Press, p. 387-406.
115. Titley, S.R., Thompson, B.C., Haynes, F.M., Manske, S.L., Robison, L.C., and White, J.L., 1986, Evolution of fractures and alteration in the Sierrita-Esperanza hydrothermal system, Pima County, Arizona: ECONOMIC GEOLOGY, v. 81, p. 343-370.
116. Ulrich, T., Günther, D., and Heinrich, C.A., 2001, The evolution of a porphyry Cu-Au deposit, based on LA-ICP-MS analysis of fluid inclusions: Bajo de la Alumbrera, Argentina: ECONOMIC GEOLOGY, v. 96, p. 1743-1774.
117. Wardell, L. J., Christenson, B.W., Kyle, P.R., and Dunbar, N.W., 2001, White Island volcano, New Zealand: Carbon dioxide and sulfur dioxide emission rates and melt inclusion studies: Chemical Geology, v. 177, p. 187-200.
118. West, R.J., and Aiken, D.M., 1982, Geology of the Sierrita-Esperanza deposit, Pima mining district, Pima County, Arizona, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, Arizona, University of Arizona Press, p. 433-465.
119. Westra, G., 1979, Porphyry copper genesis at Ely, Nevada: Nevada Bureau of Mines and Geology Report 33, p. 127-140.
120. Wilkins, J., Jr., and Heidrick, T.L., 1995, Post-Laramide extension and rotation of porphyry copper deposits, southwestern United States: Arizona Geological Society Digest, v. 20, p. 109-127.
121. Williams, S.A., and Forrester, J.D., 1995, Characteristics of porphyry copper deposits: Arizona Geological Society Digest, v. 20, p. 21-34.
122. Zelinski, W.P., 1973, Geologic evaluation of the Kelvin copper-molybdenum prospect, Pinal County, Arizona: Unpublished M.S. thesis, Socorro, New Mexico, New Mexico Institute of Mining and Technology, 72 p.
123. Zweng, P.L., and Clark, A.H., 1995, Hypogene evolution of the Toquepala porphyry copper-molybdenum deposit, Moquegua, southeastern Peru: Arizona Geological Society Digest 20, p. 566-612.