Charles E Seedorff

Interests

No activities entered.

Courses

Scholarly Contributions

Journals/Publications

• Mazdab, F. K., Lecumberri-Sanchez, P., Steele-MacInnis, M. J., Barton, M. D., Seedorff, C. E., & Runyon, S. R. (2019). Coarse muscovite veins and alteration in porphyry systems. Ore Geology Reviews.
• Runyon, S. E., Mazdab, F. K., Lecumberri-Sánchez, P., Steele-MacInnis, M. J., Seedorff, C. E., & Dyar, M. D. (2019). An occurrence of phlogopite-rich alteration in the Yerington district, Nevada. Canadian Mineralogist, 57(Submitted 18 Dec 2018; resubmitted 22 February 2019; accepted 4 March 2019; published 1 May 2019), 271-294. doi:10.3749/canmin.1800079
  More info

  Runyon, S. E., Mazdab, F. K., Lecumberri-Sánchez, P., and Steele-MacInnis, M. J., Seedorff, E., Dyar, M. D., 2019, An occurrence of phlogopite-rich alteration in the Yerington district, Nevada: Canadian Mineralogist, v. 57, no. 3, p. 271-296; https://doi.org/10.3749/canmin.1800079.
• Runyon, S. R., Seedorff, C. E., Barton, M. D., Steele-MacInnis, M. J., Lecumberri-Sanchez, P., & Mazdab, F. K. (2019). Coarse muscovite veins and alteration in porphyry systems. Ore Geology Reviews.
  More info

  Runyon, S. E., Seedorff, E., Barton, M. D., Steele-MacInnis, M. J., Lecumberri-Sánchez, P., and Mazdab, F. K., submitted, Coarse muscovite veins and alteration in porphyry systems: Submitted to Ore Geology Reviews 31 Dec 2018.
• Steele-MacInnis, M. J., Lecumberri-Sanchez, P., Mazdab, F. K., Barton, M. D., Seedorff, C. E., Nickerson, P. A., & Runyon, S. R. (2019). Sodic-calcic family of alteration in porphyry systems of Arizona and adjacent New Mexico. Economic Geology.
• Seedorff, C. E., & Favorito, D. A. (2018). Discovery of major basement-cored uplifts in the northern Galiuro Mountains, southeastern Arizona: Implications for regional Laramide deformation style and structural evolution. Tectonics, 37(10), 3916-3940. doi:https://doi.org/10.1029/2018TC005180
  More info

  Favorito, D. A., and Seedorff, E., 2018, Discovery of major basement-cored uplifts in the northern Galiuro Mountains, southeastern Arizona: Implications for regional Laramide deformation style and structural evolution: Tectonics, v. 37, no. 10, p. 3916-3940. https://doi.org/10.1029/2018TC005180
• Stegen, R. J., Thompson, T. B., & Seedorff, C. E. (2018). Climax and Henderson porphyry molybdenum deposits and the Leadville district, Colorado, Society of Economic Geologists SEG 2018 Conference, Metals, Minerals, and Society, Keystone, Colorado, Guidebook, Field Trip 7, 26-28 September 2018. Society of Economic Geologists Guidebook Series, 120.
  More info

  Stegen, R. J., Thompson, T. B., and Seedorff, E., 2018, Climax and Henderson porphyry molybdenum deposits and the Leadville district, Colorado, Society of Economic Geologists SEG 2018 Conference, Metals, Minerals, and Society, Keystone, Colorado, Guidebook, Field Trip 7, 26-28 September 2018: Society of Economic Geologists Guidebook Series, v. 43, 120 p.
• Favorito, D. A., & Seedorff, C. E. (2017). Characterization and reconstruction of Laramide shortening and superimposed Cenozoic extension, Romero Wash-Tecolote Ranch area, southeastern Arizona. Geosphere, 13(2), 577-607.
  More info

  Favorito, D. A., and Seedorff, E., 2017, Characterization and reconstruction of Laramide shortening and superimposed Cenozoic extension, Romero Wash-Tecolote Ranch area, southeastern Arizona: Geosphere, v. 13, no. 2, p. 577-607.
• Runyon, S. E., Steele-MacInnis, M., Seedorff, C. E., Lecumberri Sanchez, P., & Mazdab, F. K. (2017). Coarse muscovite veins and alteration deep in the Yerington batholith, Nevada: Insights into fluid exsolution in the roots of porphyry copper systems. Mineralium Deposita, 52(4), 463-470. doi:10.1007/s00126-017-0720-1
  More info

  Runyon, S. E., Steele-MacInnis, M. J., Seedorff, E., Lecumberri-Sánchez, P., and Mazdab, F. K., 2017, Coarse muscovite veins and alteration deep in the Yerington batholith, Nevada: Insights into fluid exsolution in the roots of porphyry copper systems: Mineralium Deposita, v. 52, no. 4, p. 463-470, DOI: 10.1007/s00126-017-0720-1.
• Nickerson, P. A., & Seedorff, E. (2016). Dismembered porphyry systems near Wickenburg, Arizona: District-scale reconstruction with an arc-scale context. Economic Geology, 111(2), 447-466.
  More info

  Nickerson, P. A., and Seedorff, E., 2016, Dismembered porphyry systems near Wickenburg, Arizona: District-scale reconstruction with an arc-scale context: Economic Geology, v. 111, no. 2, p. 447-466.
• Pape, J. R., Seedorff, E., Baril, T. C., & Thompson, T. B. (2016). Structural reconstruction and age of an extensionally faulted porphyry molybdenum system at Spruce Mountain, Elko County, Nevada. Geosphere, 12(1), 237-263. doi:doi:10.1130/ GES01249.1
  More info

  Pape, J. R., Seedorff, E., Baril, T. C., and Thompson T. B., 2016, Structural reconstruction and age of an extensionally faulted porphyry molybdenum system at Spruce Mountain, Elko County, Nevada: Geosphere, v. 12, no. 1, p. 237-263, doi:10.1130/ GES01249.1.
• Vikre, P. G., Graybeal, F. T., Fleck, R. J., Barton, M. D., & Seedorff, E. (2014). Succession of Laramide magmatic and magmatic-hydrothermal events in the Patagonia Mountains, Santa Cruz County, Arizona. Economic Geology, 109(6), 1667-1704.
• Barton, M. D., Girardi, J. D., Kreiner, D. C., Seedorff, E., Zurcher, L., Dilles, J. H., Haxel, G. B., & Johnson, D. A. (2011). Jurassic igneous-related metallogeny of southwestern North America. Great Basin Evolution and Metallogeny, Geological Society of Nevada, Symposium Proceedings, 373-396.
  More info

  Barton, M. D., Girardi, J. D., Kreiner, D. C., Seedorff, E., Zurcher, L., Dilles, J. H., Haxel, G. B., and Johnson, D. A., 2011, Jurassic igneous-related metallogeny of southwestern North America, in Steininger, R. C., and Pennell, W. M., eds., Great Basin evolution and metallogeny: Geological Society of Nevada, Symposium, Reno/Sparks, May 2010, Proceedings, v. 1, p. 373-396.
• Nickerson, P. A., Barton, M. D., & Seedorff, E. (2010). Characterization and reconstruction of the multiple copper-bearing hydrothermal systems in the Tea Cup Porphyry system, Pinal County, Arizona. Society of Economic Geologists Special Publication 15, 299-316.
  More info

  Nickerson, P. A., Barton, M. D., and Seedorff, E., 2010, Characterization and reconstruction of multiple copper-bearing hydrothermal systems in the Tea Cup porphyry system, Pinal County, Arizona, in Goldfarb, R. J., Marsh, E. E., and Monecke, T., eds., The challenge of finding new mineral resources: Global metallogeny, innovative exploration, and new discoveries: Society of Economic Geologists Special Publication 15, p. 299-316.
• Eichenlaub, A. B., & Seedorff, E. (2008). Exploration of genetic links between breccia pipes and porphyry copper deposits in a Laramide hydrothermal system, Sombrero Butte, Pinal County, Arizona, USA. Spencer, J. E., and Titley, S. R., eds., Ores and orogenesis: Circum-Pacific tectonics, geologic evolution, and ore deposits, 591-599.
  More info

  Eichenlaub, A. B., and Seedorff, E., 2008, Exploration of genetic links between breccia pipes and porphyry copper deposits in a Laramide hydrothermal system, Sombrero Butte, Pinal County, Arizona, USA, in Spencer, J. E., and Titley, S. R., eds., Ores and orogenesis: Circum-Pacific tectonics, geologic evolution, and ore deposits: Arizona Geological Society Digest 22, p. 591-599.
• Seedorff, E., Barton, M. D., Stavast, W. J., & Maher, D. J. (2008). Root zones of porphyry systems: Extending the porphyry model to depth. Economic Geology, 103(5), 939-956.
  More info

  Seedorff, E., Barton, M. D., Stavast, W. J. A., and Maher, D. J., 2008, Root zones of porphyry systems: Extending the porphyry model to depth: Economic Geology, v. 103, no. 5, p. 939-956.
• Stavast, W. J., Butler, R. F., Seedorff, E., Barton, M. D., & Ferguson, C. A. (2008). Tertiary tilting and dismemberment of the Laramide arc and related hydrothermal systems, Sierrita Mountains, Arizona. Economic Geology, 103(3), 629-636.
• Seedorff, E., Dilles, J. H., Proffett, Jr., J. M., Einaudi, M. T., Zurcher, L., Stavast, W. J., Johnson, D. A., & Barton, M. D. (2005). Porphyry deposits: Characteristics and origin of hypogene features. Economic Geology 100th Anniversary Volume, 251-298.
• Seedorff, E., & Einaudi, M. T. (2004). Henderson porphyry molybdenum system, Colorado: I. Sequence and abundance of hydrothermal mineral assemblages flow paths of evolving fluids, and evolutionary style. Economic Geology, 99(1), 3-37.
  More info

  Abstract: At Henderson, Colorado, 12 rhyolitic stocks of Oligocene age crystallized in three intrusive centers whose tops are 1 km below the surface of Red Mountain: Henderson (oldest), Seriate, and Vasquez (deepest and youngest). A variety of fluorine-rich hydrothermal mineral assemblages are grouped according to their temperatures of formation, either high-, moderately high, moderate-, or low-temperature (the latter three groups are termed lower temperature assemblages). The groupings were based on relative age relationships in areas free of cyclical events, and absolute temperature estimates based on fluid inclusion study later were made for many mineral assemblages, as detailed in a companion paper. Numerous crosscutting contacts of individual stocks combined with limits of associated high-temperature assemblages can be interpreted as spatially extensive time lines, thereby enabling temporal correlation of spatially separated events. High-temperature silicic (quartz-fluorite) and intense potassic (quartz-K-feldspar-molybdenite) assemblages developed in numerous cycles, each corresponding to emplacement of a stock and deposition of molybdenite. Molybdenite occurs without pyrite mostly in the high-temperature assemblages. In contrast, lower temperature assemblages broadly envelop intrusive centers, rather than single stocks. Some of the moderately high temperature, less intense potassic assemblages (including mottled K-feldspar-quartz and magnetite-K-feldspar) also formed during multiple cycles. Moderate-temperature sericitic assemblages (including topaz with pyrite or magnetite and sericite with pyrite or magnetite) only locally exhibit evidence for multiple cycles, and low-temperature intermediate argillic assemblages (pyrite-clay and several assemblages containing base metal sulfides, F-bearing, Mn-rich garnet, and rhodochrosite) were deposited in only a single event. These lower temperature assemblages terminate 700 m below the present surface. A zone of relatively fresh rocks extends upward and outward from this termination, separating the lower temperature assemblages from the first appearance of propylitic alteration in a more peripheral position, beyond the area of study. At no time did an advanced argillic assemblage form. Lower temperature assemblages are subdivided into two suites on the basis of position: above intrusive centers; formed from fluids that flowed upward out the top of mineralizing stocks from several intrusive centers; and on the flanks of the Seriate center, formed from fluids released from the apex of the Seriate stock and injected laterally and downward along the flanks of the stock. Na- and Na-K-feldspars (± K-feldspar ± topaz ± micas) are members of some assemblages of the second suite. The upper and lower limits of the hydrothermal system, for much of its history, are preserved within the exposures studied. The upper limit of the hydrothermal system rose to 250 m above the apices of the stocks for the first time during development of low-temperature assemblages, which extended higher above Henderson than Seriate. Prior to that time, the region where thermally and chemically evolving, saline hydrothermal fluid was reacting with wall rocks was confined to a vertical interval of approximately 0.5 km. The base of the system rose as moderately high and moderate-temperature assemblages formed but fell rapidly in elevation upon development of low-temperature assemblages. There is no evidence for system-scale convective circulation of fluids during development of the assemblages studied. Sericitic alteration did not begin to form anywhere in the system until after intense potassic Alteration had terminated in the vicinity of stocks in both the Henderson and Seriate centers; proximal to stocks, the multiplicity of intrusive events repeatedly reversed the overall trend toward lower temperatures. Sericitic alteration was followed by a late cycle of intense potassic alteration and molybdenite deposition associated with emplacement and crystallization of the Vasquez stock prior to formation of low-temperature assemblages. The hydrothermal system that formed the Henderson orebody can be viewed as a series of thermally retrograding cycles, all except the last of which was truncated by a reversal in the general trend of declining temperatures. Hence, the evolutionary style of Henderson is termed variably cyclical, in contrast to the nearly perfectly cyclical style embodied in the original Climax model for porphyry molybdenum deposits and the nearly perfectly unidirectional style envisaged for many porphyry copper deposits. An evaluation of evolutionary style can lead to geologic tests for geochronologic interpretations and proposed genetic origins of deposits. © 2004 by Economic Geology.
• Seedorff, E., & Einaudi, M. T. (2004). Henderson porphyry molybdenum system, Colorado: II. Decoupling of introduction and deposition of metals during geochemical evolution of hydrothermal fluids. Economic Geology, 99(1), 39-72.
  More info

  Abstract: Flourine-rich hydrothermal mineral assemblages developed at Henderson, Colorado, as 12 rhyolitic stocks of Oligocene age were emplaced, crystallized, and cooled inside a much larger and slightly older, rhyolitic intrusion, forming a Climax-type molybdenum deposit. The stocks are grouped into three intrusive centers, and the mineral assemblages, including ore minerals, are grouped according to their temperatures of formation as either high-, moderately high, moderate-, or low-temperature assemblages. The latter three groups are termed lower temperature assemblages, which are subdivided into two suites on the basis of position: above intrusive centers and on the flanks of the Seriate center. Integration of the mineralogy, sequence, and spatial positions of mineral assemblages defines the geochemical evolution of hydrothermal fluids, places qualitative constraints on mass transfer, and provides insight into the development of the geochemical halos that are used in exploration for porphyry orebodies. A reconnaissance fluid inclusion study targeted the lower temperature assemblages, and a geologic assessment of results indicates that we were unable to identify fluid inclusions from several assemblages. After pooling meaningful results, the ranges of temperatures of formation for each group of lower temperature assemblages are moderately high 600° to 460°C: moderate, 530° to 310°C; and low, 390° to 200°C, with significant differences in salinity between the two suites of assemblages. The suite formed above intrusive centers was deposited by more saline fluids (salinity commonly 28-65 wt % NaCl ± KCl equiv) than the suite formed on the flanks of the Seriate center (mostly

Proceedings Publications

• Richardson, C. A., & Seedorff, E. (2015, May). Reconstruction of normal fault blocks in the Ann-Mason and Blue Hill areas, Yerington district, Lyon County, western Nevada. In New concepts and discoveries: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, May 2015, 2, 1153-1178.
  More info

  Richardson, C. A., and Seedorff, E., 2015, Reconstruction of normal fault blocks in the Ann-Mason and Blue Hill areas, Yerington district, Lyon County, western Nevada, in Pennell, W. M., and Garside, L. J., eds., New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Proceedings, v. 2, p. 1153-1178.
• Runyon, S. E., Barton, M. D., Seedorff, E., Dilles, J. H., Ohlin, H. N., Carpenter, K., & Johnson, D. A. (2015, May). Iron oxide-rich mineralization and related alteration in the Yerington district, Lyon County, Nevada. In New concepts and discoveries: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, May 2015, 1, 251-283.
  More info

  Runyon, S. E., Barton, M. D., Seedorff, E., Dilles, J. H., Ohlin, H. N., Carpenter, K., and Johnson, D. A., 2015, Iron oxide-rich mineralization and related alteration in the Yerington district, Lyon County, Nevada, in Pennell, W. M., and Garside, L. J., eds., New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Proceedings, v. 1, p. 251-283.
• Seedorff, E., Richardson, C. A., & Maher, D. J. (2015, May). Fault surface maps: Three-dimensional structural reconstructions and their utility in exploration and mining:. In New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, 1179-1206.
  More info

  Seedorff, E., Richardson, C. A., and Maher, D. J., 2015, Fault surface maps: Three-dimensional structural reconstructions and their utility in exploration and mining, in Pennell, W. M., and Garside, L. J., eds., New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Proceedings, v. 2, p. 1179-1206.
• Seedorff, E., Richardson, C. A., Maher, D. J., Richardson, C. A., & Favorito, D. A. (2015, May). The Jackson-Lawton-Bowman normal fault system and its relationship to Carlin-type gold mineralization, Eureka district, Nevada:. In New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, 2, 967-1000.
  More info

  Hoge, A. K., Seedorff, E., Barton, M. D., Richardson, C. A., and Favorito, D. A., 2015, The Jackson-Lawton-Bowman normal fault system and its relationship to Carlin-type gold mineralization, Eureka district, Nevada, in Pennell, W. M., and Garside, L. J., eds., New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Proceedings, v. 2, p. 967-1000.

Presentations

• Richardson, C. A., & Seedorff, C. E. (2018, September). Palinspastic restoration of the dismembered Roberts Mountains thrust, northern Shoshone Range, Nevada: Insights into the architecture of the Roberts Mountain thrust system and implications for exploration of concealed Carlin-type deposits [abs.], speed talk 25 September 2018, with poster.. 2018 Conference: Metals, Minerals, and Society. Keystone, Colorado, 22-25 September 2018,: Society of Economic Geologists.
  More info

  Richardson, C. A., and Seedorff, E., 2018, Palinspastic restoration of the dismembered Roberts Mountains thrust, northern Shoshone Range, Nevada: Insights into the architecture of the Roberts Mountain thrust system and implications for exploration of concealed Carlin-type deposits [abs.]: Society of Economic Geologists 2018 Conference: Metals, Minerals, and Society, Keystone, Colorado, 22-25 September 2018, speed talk 25 September 2018, with poster. [Richardson received award for second-best (tie) student speed talk at conference]
• Richardson, C. A., Richardson, C. A., Seedorff, C. E., & Seedorff, C. E. (2017, October). Multiple generations of Cenozoic normal faults and related tilting in the Goshute Mountains and Toano Range, Elko County, Nevada, with geologic implications [abs.]. Geological Society of America Abstracts with Programs. Seattle, Washington: Geological Society of America.
  More info

  Richardson, C. A., and Seedorff, E., 2017, Multiple generations of Cenozoic normal faults and related tilting in the Goshute Mountains and Toano Range, Elko County, Nevada, with geologic implications [abs.]: Geological Society of America Abstracts with Programs, v. 49, no. 6, doi: 10.1130/abs/2017AM-304577
• Runyon, S. E., Seedorff, C. E., & Stegen, R. J. (2017, October). Ajo mining district, southwestern Arizona: Laramide magmatism, porphyry copper mineralization, and structural evolution [abs.]. Geological Society of America Abstracts with Programs. Seattle, Washington: Geological Society of America.
  More info

  Runyon, S. E., Seedorff, E., and Stegen, R. J., 2017, Ajo mining district, southwestern Arizona: Laramide magmatism, porphyry copper mineralization, and structural evolution [abs.]: Geological Society of America Abstracts with Programs, v. 49, no. 6, doi: 10.1130/abs/2017AM-304596
• Seedorff, C. E. (2017, May). Controls on variability in time-space evolution of magmatic-hydrothermal systems. UC Davis Dept Earth & Planetary Sci weekly seminar (colloquium), 24 May 2017. University of California, Davis: Department of Earth and Planetary Sciences.
  More info

  University of California Davis, 24 May 2017, Department of Earth and Planetary Sciences, weekly seminar series, “Controls on variability in time-space evolution of magmatic-hydrothermal systems”
• Favorito, D. A., & Seedorff, E. (2016, February). Contractional deformation, magmatism, and hydrothermal systems in the southern Tortilla Mountains, Laramide porphyry copper province, Arizona [abs.]. The Future for Mining in a Data-Driven World, Technical Program, p. 259. Phoenix, Arizona: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, 21-24 February 2016.
  More info

  Favorito, D. A., and Seedorff, E., 2016, Contractional deformation, magmatism, and hydrothermal systems in the southern Tortilla Mountains, Laramide porphyry copper province, Arizona [abs.]: The Future for Mining in a Data-Driven World: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, Phoenix, Arizona, 21-24 February 2016, Technical Program, p. 259.
• Mizer, J. D., Barton, M. D., Seedorff, E., & Metz, R. A. (2016, February). Vein-hosted Ag in the Cerro Colorado district, Pima County, Arizona [abs.]. The Future for Mining in a Data-Driven World, Technical Program, p. 259. Phoenix, Arizona: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, 21-24 February 2016.
  More info

  Mizer, J.D., Barton, M.D., Seedorff, E., and Metz, R. A., 2016, Vein-hosted Ag in the Cerro Colorado district, Pima County, Arizona [abs.]: The Future for Mining in a Data-Driven World: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, Phoenix, Arizona, 21-24 February 2016, Technical Program, p. 259.
• Richardson, C. A., & Seedorff, C. E. (2016, September). Extensional deformation in the Hilltop district and vicinity, northern Shoshone Range, Nevada: Current paradigms, open questions, and practical applications [abs.]. Geological Society of Nevada Newsletter, September 2016.
  More info

  Richardson, C. A., and Seedorff, E., 2016, Extensional deformation in the Hilltop district and vicinity, northern Shoshone Range, Nevada: Current paradigms, open questions, and practical applications [abs.]: Geological Society of Nevada Newsletter, September 2016, v. 32, no. 7, p. 6, 8.
• Richardson, C. A., & Seedorff, E. (2016, February). Structural reconstruction of extensional deformation in the Maysville Summit-Hilltop-Park Saddle area, northern Shoshone Range, Nevada: Implications for mineral exploration targeting [abs.]. The Future for Mining in a Data-Driven World, Technical Program, p. 61. Phoenix, Arizona: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, 21-24 February 2016.
  More info

  Richardson, C. A., and Seedorff, E., 2016, Structural reconstruction of extensional deformation in the Maysville Summit-Hilltop-Park Saddle area, northern Shoshone Range, Nevada: Implications for mineral exploration targeting [abs.], in The Future for Mining in a Data-Driven World: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, Phoenix, Arizona, 21-24 February 2016, Technical Program, p. 61.
• Richardson, C. A., Seedorff, C. E., & King, C. A. (2016, Fall). Extensional dismemberment of the Hilltop mining district, northern Shoshone Range, north-central Nevada [abs.]. Geological Society of America Abstracts with Programs.
  More info

  Richardson, C. A., Seedorff, E., and King, C. A., 2016, Extensional dismemberment of the Hilltop mining district, northern Shoshone Range, north-central Nevada [abs.]: Geological Society of America Abstracts with Programs, v. 48, no. 7, doi: 10.1130/abs/2016AM-278000.
• Runyon, S. E., Barton, M. D., & Seedorff, E. (2016, February). Yerington district, western Nevada: Brownfields activity in the midst of diverse Jurassic hydrothermal systems and subsequent normal faulting and associated tilting [abs.]. The Future for Mining in a Data-Driven World, Technical Program, p. 148-149. Phoenix, Arizona: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, 21-24 February 2016.
  More info

  Runyon, S. E., Barton, M. D., and Seedorff, E., 2016, Yerington district, western Nevada: Brownfields activity in the midst of diverse Jurassic hydrothermal systems and subsequent normal faulting and associated tilting [abs.]: The Future for Mining in a Data-Driven World: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, Phoenix, Arizona, 21-24 February 2016, Technical Program, p. 148-149.
• Runyon, S. E., Seedorff, C. E., Steele-MacInnis, M., Lecumberri-Sánchez, P., & Mazdab, F. K. (2016, Fall). Greisen alteration in the root zones of porphyry copper systems in Yerington, Nevada [abs.]. Geological Society of America Abstracts with Programs.
  More info

  Runyon, S. E., Seedorff, E., Steele-MacInnis, M. J., Lecumberri-Sánchez, P., and Mazdab, F. K., 2016, Greisen alteration in the root zones of porphyry copper systems in Yerington, Nevada [abs.]: Geological Society of America Abstracts with Programs, v. 48, no. 7, doi: 10.1130/abs/2016AM-278000.
• Stegen, R. J., Mizer, J. D., Barton, M. D., & Seedorff, E. (2016, February). The U-Pb dating of and implications for Laramide porphyry copper systems [abs.]. The Future for Mining in a Data-Driven World, Technical Program, p. 259. Phoenix, Arizona: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, 21-24 February 2016.
  More info

  Favorito, D. A., and Seedorff, E., 2016, Contractional deformation, magmatism, and hydrothermal systems in the southern Tortilla Mountains, Laramide porphyry copper province, Arizona [abs.]: The Future for Mining in a Data-Driven World: Society for Mining, Metallurgy, and Exploration, 2016 Annual Conference and Expo, Phoenix, Arizona, 21-24 February 2016, Technical Program, p. 239.
• Barton, M. D., Seedorff, E., & Ghidotti, G. A. (2015, May). Contrasting, variably superimposed hydrothermal systems, Eureka mining district, northern Fish Creek Range, Nevada [abs.]. Geological Society of Nevada Symposium, Program with Abstracts, p. 35.. Reno, Nevada: Geological Society of Nevada.
  More info

  Barton, M.D., Seedorff, E., and Ghidotti, G.A., 2015, Contrasting, variably superimposed hydrothermal systems, Eureka mining district, northern Fish Creek Range, Nevada [abs.], in New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 35.
• Runyon, S. E., Barton, M. D., Dilles, J. H., Ohlin, H. N., Seedorff, E., Carpenter, K., & Johnson, D. A. (2015, May). Iron oxide-rich mineralization and related alteration in the Yerington district, Lyon County, Nevada. New concepts and discoveries: Geological Society of Nevada Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 98-99.. Reno, Nevada: Geological Society of Nevada.
  More info

  Runyon, S. E., Barton, M. D., Dilles, J. H., Ohlin, H. N., Seedorff, E., Carpenter, K., and Johnson, D. A., 2015, Iron oxide-rich mineralization and related alteration in the Yerington district, Lyon County, Nevada [abs.], in New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 98-99.
• Seedorff, E., Barton, M. D., & Takaichi, M. L. (2015, May). East-west swath of mid-Cretaceous intrusions in east-central Nevada: U-Pb geochronology and metallogeny [abs.]. Geological Society of Nevada Symposium, Program with Abstracts, p. 101-102. Reno, Nevada: Geological Society of Nevada.
  More info

  Seedorff, E., Barton, M. D., and Takaichi, M. L., East-west swath of mid-Cretaceous intrusions in east-central Nevada: U-Pb geochronology and metallogeny [abs.], in New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 101-102.
• Seedorff, E. (2014, Sept). The role of organizational culture and its link to strategy in mineral exploration management [abs.]. Society of Economic Geologists 2014 Conference: Building exploration capacity for the 21st century, 27-30 September 2014, abstract 0393-000198, 2 p.. Keystone, Colorado: Society of Economic Geologists.
• Seedorff, E., & Pape, J. R. (2014, April). Structural dismemberment of a porphyry molybdenum system, Spruce Mountain district, northeastern Nevada [abs.]. Arizona Geological Society, Monthly Dinner Meeting, April 2014 Newsletter, p. 1-2. Tucson, Arizona: Arizona Geological Society.
• Seedorff, E., & Richardson, C. A. (2014, June). Diverse geometries and temporal relationships of normal faults and fault systems in continental extension: A perspective from the Basin and Range province and mineral deposits [extended abs.]. Geometry and Growth of Normal Faults: Geological Society of London Conference, London, 23-25 June 2014, Programme and Abstract Volume, p. 20-22.. London, England, UK: Geological Society of London.
• Seedorff, E. (2013, Sept.). Structural reconstruction of mid-Tertiary normal faults and mylonitic shear zones, Tortolita Mountains and vicinity, northwestern end of the Catalina metamorphic core complex, Arizona: Testing models of Cordilleran metamorphic core complexes [abs.]:. Geological Society of America Abstracts with Programs, v. 45, no. 7, p. 224. Denver, Colorado: Geological Society of America Annual Meeting.
• Seedorff, E. (2011, April). Copper: The metal, the industry, and the regional geologic context [abs.]. Geological Society of Nevada, Monthly dinner meeting, Newsletter, April 2011, v. 27, no. 4, p. 3.. Reno, Nevada: Geological Society of Nevada.
• Seedorff, E., Barton, M. D., & Zurcher, L. (2011, January). Porphyry deposits of southwestern North America: Regional scale space-time relationships [abs.]. Association for Mineral Exploration British Columbia (AME BC), Mineral Exploration Roundup, Abstract Volume, p. 23-24.. Vancouver, British Columbia, Canada: Association for Mineral Exploration British Columbia (AME BC).
• Seedorff, E., Barton, M. D., & Zurcher, L. (2010, Oct). Porphyry deposits of southwestern North America: Space-time relationships at the regional scale and comparison with young arcs and magmatic centers [abs.]. Society of Economic Geologists 2010 Conference: The challenge of finding new mineral resources: Global metallogeny, innovative exploration, and new discoveries, Keystone, Colorado, 2-5 October 2010, 1 p.. Keystone, Colorado: Society of Economic Geologists.
  More info

  Seedorff, E., Barton, M. D., and Zurcher, L., 2010, Porphyry deposits of southwestern North America: Space-time relationships at the regional scale and comparison with young arcs and magmatic centers [abs.]: Society of Economic Geologists 2010 Conference: The challenge of finding new mineral resources: Global metallogeny, innovative exploration, and new discoveries, Keystone, Colorado, 2-5 October 2010, 1 p.

Poster Presentations

• Favorito, D. A., & Seedorff, C. E. (2018, September). Laramide shortening and its relationship to porphyry copper systems in the northern San Pedro Valley, southeastern Arizona [abs.], poster 074. 2018 Conference: Metals, Minerals, and Society,. Keystone, Colorado, 22-25 September 2018: Society of Economic Geologists.
  More info

  Favorito, D. A., and Seedorff, E., 2018, Laramide shortening and its relationship to porphyry copper systems in the northern San Pedro Valley, southeastern Arizona [abs.]: Society of Economic Geologists 2018 Conference: Metals, Minerals, and Society, Keystone, Colorado, 22-25 September 2018, Poster 074. [Favorito received award for best student poster at conference]
• Runyon, S. E., Seedorff, C. E., Steele-MacInnis, M. J., Lecumberri-Sánchez, P., & Mazdab, F. K. (2018, September). Coarse muscovite alteration in the roots of Laramide porphyry copper systems [abs.], Poster 054. 2018 Conference: Metals, Minerals, and Society. Keystone, Colorado, 22-25 September 2018: Society of Economic Geologists.
  More info

  Runyon, S. E., Seedorff, E., Steele-MacInnis, M. J., Lecumberri-Sánchez, P., and Mazdab, F. K., 2018, Coarse muscovite alteration in the roots of Laramide porphyry copper systems [abs.]: Society of Economic Geologists 2018 Conference: Metals, Minerals, and Society, Keystone, Colorado, 22-25 September 2018, Poster 054.
• Hoge, A. K., Seedorff, E., Barton, M. D., Richardson, C. A., & Favorito, D. A. (2015, May). The Jackson-Lawton-Bowman normal fault system and its relationship to Carlin-type gold mineralization, Eureka district, Nevada [abs.]. Geological Society of Nevada Symposium, Program with Abstracts, p. 62. Reno, Nevada: Geological Society of Nevada.
  More info

  Hoge, A. K., Seedorff, E., Barton, M. D., Richardson, C. A., and Favorito, D. A., 2015, The Jackson-Lawton-Bowman normal fault system and its relationship to Carlin-type gold mineralization, Eureka district, Nevada [abs.], in New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 62.
• Richardson, C. A., & Seedorff, E. (2015, Fall). The dirty lives and times of normal faults: Implications for fault mechanics from crosscutting relationships in highly extended domains in the Basin and Range province, western North America [abs.]. Geology of Geomechanics: Geological Society of London Conference, London,28-29 October 2015, Programme and Abstract Volume, p. 85. London, England, UK: Geological Society of London.
  More info

  Richardson, C. A., and Seedorff, E., 2015, The dirty lives and times of normal faults: Implications for fault mechanics from crosscutting relationships in highly extended domains in the Basin and Range province, western North America [abs.], in Geology of Geomechanics: London, Geological Society of London Conference, London, 28-29 October 2015, Programme and Abstract Volume, p. 85.
• Richardson, C. A., & Seedorff, E. (2015, May). Reconstruction of normal fault blocks in the Ann-Mason and Blue Hill areas, Yerington district, Lyon County, western Nevada [abs.]. Geological Society of Nevada Symposium, Program with Abstracts, p. 97-98. Reno, Nevada: Geological Society of Nevada.
  More info

  Richardson, C. A., and Seedorff, E., 2015, Reconstruction of normal fault blocks in the Ann-Mason and Blue Hill areas, Yerington district, Lyon County, western Nevada [abs.], in New concepts and discoveries: Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 97-98.
• Seedorff, E., Richardson, C. A., & Maher, D. J. (2015, May). Fault surface maps: Three-dimensional structural reconstructions and their utility in exploration and mining [abs.]. Geological Society of Nevada Symposium, Program with Abstracts, p. 102. Reno, Nevada: Geological Society of Nevada.
  More info

  Seedorff, E., Richardson, C. A., and Maher, D. J., 2015b, Fault surface maps: Three-dimensional structural reconstructions and their utility in exploration and mining [abs.], New concepts and discoveries, Geological Society of Nevada, Symposium, Reno/Sparks, May 2015, Program with Abstracts, p. 102.
• Richardson, C. A., & Seedorff, E. (2014, June). Normal faulting in the Yerington district, western Nevada: New data from the Ann-Mason area [extended abs.]. Geometry and Growth of Normal Faults: Geological Society of London Conference, London, 23-25 June 2014, Programme and Abstract Volume, p. 189-190.. London, England, UK: Geological Society of London.

Others

• Greig, R. E., Barton, M. D., Favorito, D. A., Richardson, C. A., & Seedorff, C. E. (2019, September). Crustal shortening and porphyry copper mineralization in the Laramide arc and superimposed extension: Introduction and themes. in Pearthree, P.A., ed., Geologic Excursions in Southwestern North America: Geological Society of America Field Guide 55, p. 319-335..
• Greig, R. E., Barton, M. D., Maher, D. J., Seedorff, C. E., Runyon, S. E., Favorito, D. A., & Richardson, C. A. (2019, September). Superimposed Laramide contraction, porphyry copper systems, and Cenozoic extension, east-central Arizona: A road log. in Pearthree, P.A., ed., Geologic Excursions in Southwestern North America: Geological Society of America Field Guide 55, p. 337-367..
• Marsh, T. M., Stavast, W. J., Maher, D. J., Johnson, D. A., Valencia, V. A., Gehrels, G. E., Barton, M. D., & Seedorff, C. E. (2019, September). Temporal evolution of the Laramide arc: U-Pb geochronology of plutons associated with porphyry copper mineralization in east-central Arizona. in Pearthree, P.A., ed., Geologic Excursions in Southwestern North America: Geological Society of America Field Guide 55, p. 369-400..