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Staff Directory

Director and State Geologist

Philip A. Pearthree, Ph.D.

  • Director
Quaternary mapping, seismicity, geologic hazards
  • 520-621-2444
pearthre@email.arizona.edu

Environmental Geology

Ann Youberg, Ph.D.

  • Senior Research Scientist
Landslides, post-wildfire debris flows
  • 520-621-2250
ayouberg@email.arizona.edu
Brian F. Gootee photo

Brian F. Gootee, M.S.

  • Research Scientist, Tribal Liason
Geologic mapping, basin analysis, geologic hazards, outreach
  • 520-621-2470
bgootee@email.arizona.edu

Joseph P. Cook, M.S.

  • Research Scientist
Earth fissures, debris flows, Quaternary mapping
  • 520-621-2364
joecook@email.arizona.edu
Jeri Young

Jeri J. Young, Ph.D.

  • Research Scientist
Seismicity, Quaternary mapping
  • 520-621-2470
jeribenhorin@email.arizona.edu

Lisa Thompson, M.S.

  • Research Scientist
  • 520-621-2470
lathompson@email.arizona.edu

Geoinformatics

staff

Gary Hudman

  • Senior Research Scientist
GIS applications, IT
  • 520-621-2398
garyhudman@email.arizona.edu

Laura Bookman, M.S.

  • Research Scientist
GIS applications
  • 520-621-2470
lbookman@email.arizona.edu

Doug Meredith

  • Developer
GIS applications
  • 520-621-2470
douglasm@email.arizona.edu

Haley Snellen

  • GIS professional II
  • 520-621-2470
hsnellen@email.arizona.edu
Andrew Zaffos staff photo

Andrew Zaffos, Ph.D.

  • Senior Research Scientist
  • 520-621-3635
azaffos@email.arizona.edu

Geologic Extension Service

Michael Conway, Ph.D.

  • Senior Research Scientist
  • 520-621-2352
fmconway@email.arizona.edu

Mapping Program

Charles A. Ferguson, Ph.D.

  • Research Scientist
  • 520-621-2470
caf@email.arizona.edu
Brad Johnson

Brad Johnson, Ph.D.

  • Research Scientist
Bedrock mapping, structural geology, mineral deposits
  • 520-621-2470
bradjohnson@email.arizona.edu

Economic Geology

Carson Richardson, Ph.D.

  • Senior Research Scientist
Mineral deposits, structural geology, and regional geology
  • 520-621-2482
carichardson@email.arizona.edu

Victor Garcia, Ph.D.

  • Research Scientist
  • 520-621-2470
vhgarcia4@arizona.edu

Administrative Services

Randi Bellassai

  • Assistant Director, Business-Finance
Research administration, project management
  • 520-621-2432
rbellassai@email.arizona.edu
  • About AZGS
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520.621.2470 | 1955 East 6th Street, P.O. Box 210184, Tucson, AZ 85721

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