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Overview
Students, faculty,
& post-docs
Current Group
Graduate students
Undergrad students
Post-docs
Group Alumni
What do they do?
academia
minerals /
petroleum
government /
evironment
List of theses
Overview
My group —students at all levels, post-docs, and visiting scholars—has always had a broad mix of people,
interests, activities, and goals. Undergraduates are involved in work-study and independent research projects;
graduate students and post-docs tackle diverse topics, typically with independent funding. We also work with
closely with many in the Department, particularly with Eric Seedorff's group, but also with others in the
Mineral Resources, Petrology, Geochemistry and Tectonics groups. We also work closely with geologists from
a number of mining companies and from the U.S. Geological Survey.
Like my research interests, thesis and undegraduate research topics have been diverse. Theses have
spanned economic geology to experimental petrology to isotope geochemistry to structural geology to
mineralogy. Over the years, MS and PhD graduates, and former post-docs have gone on to a wide variety of
careers that draw on their training in geosciences. A primary goal of mine is to challenge everyone in our
group to find something that excites them, to pursue it to completion, to develop tehnical expertise, to
improve communication skills, and—ultimately—to build on that experience in another setting, be it in a
career or further education.
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Current Group
Graduate students
Current advisees
David Maher (Ph.D. candidate) Structural evolution and porphry copperrelated hydrothermal systems of the Ray-Globe-Superior region, Arizona.
(Phelps Dodge, NSF, USGS)
Chao Li (Ph.D. candidate) Comparison of the Mesozoic igneous-related
metallogeny of SE China with that of SW North America. (Isotope Lab
support, USGS)
Greg Ghidotti (Ph.D. candidate, on leave) Sediment-hosted gold
mineralization in the Eureka district, Nevada and its relationship to
magmatism and other styles of mineralization. (USGS)
Other graduate students with whom I am currently working closely
Bill Stavast (Ph.D. candidate) Petrological and structural evolution of the
porphyry copper-related Schultze and Ruby Star plutons,Arizona. (NSF /
USGS / Phelps Dodge)
Stacie Gibbins (Ph.D. candidate) Igneous evolution and mineralization
associated with the Ertsberg complex, Irian Jaya. (Titley: FMC)
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Undergraduate students
Erik Flesch (Geology) Various projects including U-Pb and Ar-Ar dating of porphyry Cu and IOCG
systems; independent study on Na(Ca) alteration associated with Laramide plutons
Laura Huebner (Geophysics) Digitization and analysis of structural and geophysical data associated
with IOCG deposits near Copiapo, Chile
Mayo Thompson (Geophysics) Collation and analysis of geological and geophysical data related to
the Porphyry Copper Life Cycle project
Tyler Vandruff (Geology) Electron microprobe and SEM characterization of minerals in IOCG
systems; independent study on Na(Ca) alteration associated with Laramide plutons
Elyse Gayda (Physiology) Work-study assistance with digital data.
Post-docs
Eric Jensen (Research Scientist) Current
projects include studies of (1) Au deposits
related to alkaline igneous rocks (USGS),
(2) alkali-rich alteration in contrasting
igneous-related hydrothermal systems, (3)
structure and IOCG mineralization in the
Candelaria district, Chile (Phelps Dodge)
David Johnson (Research Scientist) Current
projects include studies of (1) IOCG
mineralization in Southwestern North
America, Sweden, and globally (Georange
& others); (2) comparison of
metasomatism in contrasting igneousrelated hydrothermal enviroments; (3)
evolution and redistribution of element
enrichments associated with the porphyry
Cu province of the Southwest (USGS /
NSF); (4) synthesis of data on the
porphyry Cu province (USGS / NSF)
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Barton Group Alumni — former graduate students and post-docs
What do they do?
Academic careers: Graduate students and post-docs have
gone on into university careers in geology and related fields
include: Denise Battles (PhD; Prof. of Geology & Assoc. Dean,
Georgia Southern Univ.), Gray Bebout (PhD; Prof.
Geochemisty, Lehigh Univ.), Kurt Friehauf (post-doc; Assoc.
Prof., Kutztown Univ.), Jamshid Hassanzadeh (PhD; Prof.
Geology, Teheran Univ.), Lynn Ingram (MS [Stanford PhD];
Assoc. Prof. Geography, U. California, Berkeley), Robert
Marschik (post-doc; Prof. Econ. Geology, Ludwig-Maximillians
Univ., Munich), and Ntsiki Van Averbeke (MS; Ft. Hare
College). Several other students have gone into teaching high
school science (Jim Gonzalez, Greg Ghidotti).
Other former graduate students who are still in the
academic mill include Julie Hamblock (MS; now PhD candidate,
UTEP), Eric Jensen (PhD; now post-doc, Univ. Arizona), and
David Johnson (PhD; now post-doc, Univ. Arizona). The
majority of the 40+ undergraduates who have worked with our
group over the years have gone on to graduate school.
Mining and petroleum industry related careers:
Students who have gone on into successful careers in related
to the mining and petroleum industry include: Ron Bertasi (MS
[MBA, Dartmouth], President, Southern Company Energy Solutions), Carlotta Chernoff (PhD; Geologist,
ConocoPhillips), Adam Graf (MS [MBA, U. Arizona]; Mining Industry Analyst, BearStearns), Martin Herrmann
(MS; Geologist, ExxonMobil), Bob Ilchik (PhD, Senior Exploration Geologist, Sino Gold), John-Mark Staude
(PhD; Global Assessment Leader-Advanced Projects, BHP-Billiton), and Wojtek Wodzicki (MS & PhD;
General Manager Exploration, North America, Teck-Cominco). Eric Jensen (PhD) and David Johnson (PhD)
have their own successful start -up exploration group in addition to their continuing part-time post-doctoral
positions in our group.
Government and environment related careers: Among my students who have gone on into careers in
geology are: Serigo Castro-Reino (PhD; Research Geologist, Desert Archaeology), Sean Doherty (MS; ),
Frank Mazdab (PhD, Staff Mineralogist, U.S. Geological Survey), Mark Rollog (MS, Staff Isotope Geochemist,
Univ. Arizona), Dave Szumigala (PhD, Senior Econ. Geologist, Alaska Dept. of Natural Resources), and
Heather Trim (PhD; People for the Puget Sound, formerly Staff Scientist for Los AngelesWatershed Council).
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Theses
Battles, Denise A., 1990, The hydrothermal evolution of the Shamrock Batholith, western Nevada,
and the origin of sodium-rich alteration in the western United States: unpublished Ph.D. thesis,
University of California, Los Angeles, 122 p.
Bebout, Gray E., 1989, Geological and
geochemical investigations of fluid flow and
mass transfer during subduction-zone
metamorphism: unpublished Ph.D. thesis,
University of California, Los Angeles, 370 p.
Becker, Jennifer, 1999, Time-space variations
in Mesozoic and Cenozoic meteoric waters
in southwestern North America:
unpublished M.S. thesis, University of
Arizona, 53 p.
Bertasi, Ronald P., II, 1989, Experimental
phase equilibria of a high-pressure
subduction zone pegmatite: unpublished
M.S. thesis, University of California, Los
Angeles, 51 p.
Castro-Reino, Sergio, 2004, Intrusion-related
mineralization in the central sector of the
Sierra Madre Oriental, Mexico: unpublished
Ph.D. thesis, University of Arizona, 500 p.
Chernoff, Carlotta A., 2002, Origin and
redistribution of metals in sedimentary
rocks: unpublished Ph.D. thesis, University
of Arizona, 1035 p.
Doherty, Shawn B., 1990, An experimental investigation of alkali halide-mineral exchange equilibria:
unpublished M.S. thesis, University of California, Los Angeles, 53 p.
Gonzalez, James M., 1988, Skarn and sulfide replacement mineralization in the Ward district, White
Pine County, Nevada: unpublished M.S. thesis, University of California, Los Angeles, 73 p.
Graf, Adam, 1997, Geology and porphyry-style mineralization of the Cerro de la Gloria stock
associated with high-T carbonate-hosted Zn-Cu-Ag(-Pb) skarn mineralization, San Martin
district, Zacatecas, Mexico: unpublished M.S. thesis, University of Arizona, 163 p.
Greenhoot, Christopher A., 2000, Geology of the Metates gold-silver deposit, Durango, Mexico,
Unpublished M.S. thesis, University of Arizona, 65 p.
Hamblock, Julie M., 2002, Lithology, alteration, and mineralization in the eastern Mexican alkaline
province: unpublished M.S. thesis, University of Arizona, 133 p.
Hassenzadeh, Jamshid, 1993, Metallogenic and tectonomagmatic events in the SE sector of the
Cenozoic active continental margin of central Iran (Shahr e Babak area, Kerman Province):
unpublished Ph.D. thesis, University of California, Los Angeles, 204 p.
Herrmann, Martin A., 2001, Episodic magmatism and hydrothermal activity, Pima Mining District,
Arizona: unpublished M.S. thesis, University of Arizona, 44 p.
Hodkinson, Damian, 1998, A geochemical comparison of Phanerozoic magmatic suites,
southeastern Arizona: Changing crust and mantle contributions to magmas with tectonic regime:
unpublished M.S. thesis, University of Arizona, 94 p.
Ilchik, Robert P., 1990,
Geology, geochemistry,
and genesis of the
Vantage gold deposits,
Alligator Ridge - Bald
Mountain mining district,
Nevada: unpublished
Ph.D. thesis, University of
California, Los Angeles,
138 p.
Ingram, B. Lynn, 1989,
Strontium isotopic and
textural characteristics of
Pacific hydrogenetic and
hydrothermal
ferromanganese deposits:
unpublished M.S. thesis,
University of California,
Los Angeles, 59 p.
Jensen, Eric P., 2003,
Magmatic and
hydrothermal evolution of the Cripple Creek gold deposit, Colorado: unpublished Ph.D.
dissertation, University of Arizona, 499 p.
Johnson, David A., 2000, Studies of iron-oxide(-Cu-REE-Au-Co-Ag-Ni-U) mineralization and
associated sodic alteration in the Great Basin: unpublished Ph.D. dissertation, University of
Arizona, 277 p.
Kanté, Janet A., 2002, Comparative studies of mid-Tertiary mineralization at Ajo and other areas in
Arizona, southwestern USA: unpublished M.S. thesis, University of Arizona, p.
Leland, John, 1990, Geology and petrogenesis of the Melrose stock, Elko County, Nevada:
unpublished M.S. thesis, University of California, Los Angeles, 134 p.
Mazdab, Frank K., 2001, The distribution of trace elements in iron sulfides and associated chlorinebearing silicates: unpublished Ph.D. thesis, University of Arizona, 795 p.
Michelsen, Carl, 1987, Non-thesis M.S., University of California, Los Angeles.
Rollog, Mark, 2003, Oxygen, strontium and neodymium isotopic patterns in granitoids of the North
American Cordillera: unpublished M.S. thesis, University of Arizona, 46 p.
Rudders, Jonathan, 1996, Extension-related fluid flow and hydrothermal alteration in the CatalinaRincon metamorphic core complex: unpublished M.S. thesis, University of Arizona, 97 p.
Staude, John-Mark, 1995, Epithermal
mineralization in the Sierra
Madrea Occidental and the
metallogeny of northwestern
Mexico: unpublished Ph.D.
thesis, University of Arizona, 248
p.
Szumigala, David, 1993, Gold
mineralization related to
Cretaceous - Tertiary magmatism
in the Kuskokwim Mountains of
west-central and southwestern,
Alaska: unpublished Ph.D. thesis,
University of California, Los
Angeles, 301 p.
Trim, Heather E., 1990, Genesis of granite-related lithophile element-rich mineralization in the Great
Basin: Kern Mountains, Nevada, and Birch Creek, California: unpublished Ph.D. thesis,
University of California, Los Angeles, 320 p.
Van Averbeke, Ntsiki, 1996, Fluid inclusion studies of
lithophile element mineralization in the Great Basin:
unpublished M.S. thesis, University of Arizona, 69 p.
Wodzicki, Wojtek A., 1992, Geology and origin of highgrade porphyry and pegmatite copper mineralization:
Maria mine, Cananea, Sonora, Mexico: unpublished
M.S. thesis, University of California, Los Angeles, 50
p
Wodzicki, Wojtek A., 1995, The evolution of Laramide
igneous rocks and porphyry copper mineralization in
the Cananea district, Sonora, Mexico: unpublished
Ph.D. thesis, University of Arizona, 181 p.
Woodburne, Keith L., 2000, Post-mineral structural
controls on supergene enrichment at the Mariquita
porphyry copper deposit, Sonora, Mexico:
Unpublished M.S. Thesis, University of Arizona, 61 p.
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