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The Geology, Geophysics, and Geochemistry Science Center (GGGSC) is located in Lakewood, Colorado on the Denver Federal Center. For inquiries about our science and the Center, please contact us.

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Employee Directory

Job Title Name Email Sort descending Phone
Deputy Center Director Amy M Bern abern@usgs.gov 303-236-0952
Scientist Emeritus Albert H Hofstra ahofstra@usgs.gov 303-236-5530
Research Geologist Andrew G Hunt ahunt@usgs.gov 303-236-4931
Physical Scientist Andrew Ingraham aingraham@usgs.gov 303-236-9376
Research Geologist Andrew H Manning amanning@usgs.gov 303-236-1812
Research Geophysicist Anne E McCafferty anne@usgs.gov 303-236-1397
Research Geophysicist Anjana K Shah ashah@usgs.gov 303-236-1218
Research Geologist A. Kate Souders asouders@usgs.gov 303-236-9374
Geophysicist Anahita Tikku, PhD atikku@usgs.gov
Scientist Emeritus Anna Burack Wilson awilson@usgs.gov 303-236-5593
Scientist Emeritus Brian Marshall bdmarsha@usgs.gov 303-236-7914
Research Geophysicist Benjamin J Drenth, Ph.D. bdrenth@usgs.gov 303-236-1827
Geophysicist Bennett E Hoogenboom bhoogenboom@usgs.gov 303-236-1800
Physical Science Technician Ben N Mcgee bmcgee@usgs.gov 303-236-1403
Research Geophysicist Burke Minsley bminsley@usgs.gov 303-236-5718
Scientist Emeritus Forrest (Barney) G Poole bpoole@usgs.gov 303-236-5599
Scientist Emeritus Bradley S Van Gosen bvangose@usgs.gov 303-236-1566
Geophysicist Chelsea M Amaral camaral@usgs.gov
Research Geophysicist Carol A Finn, Ph.D. cfinn@usgs.gov 303-236-1345
Geophysicist Chloe D. Gustafson cgustafson@usgs.gov
Research Geologist Christopher Holm-Denoma cholm-denoma@usgs.gov 303-236-5454
Chemist Cyrus J Berry cjberry@usgs.gov 303-236-1079
Scientist Emeritus Craig A Johnson, Ph.D. cjohnso@usgs.gov 303-236-7935
Geologist Corey J Meighan cmeighan@usgs.gov 303-236-2101
Research Geologist Celestine Mercer cmercer@usgs.gov 303-236-1866
Research Chemist Christopher Mills cmills@usgs.gov 303-236-5529
Research Geologist Cameron M. Mercer, Ph.D. cmmercer@usgs.gov
Center Director Christopher S Moses, Ph.D. cmoses@usgs.gov 303-236-1800
Physical Scientist Carma A San Juan csanjuan@usgs.gov 303-236-2450
Research Geologist Cliff D Taylor ctaylor@usgs.gov 303-236-2499
Scientist Emeritus Charles H Thorman cthorman@usgs.gov 303-236-5601
Geophysicist Dylan Connell dconnell@usgs.gov
Physical Scientist Derek B Ensign densign@usgs.gov
Scientist Emeritus David A Lindsey dlindsey@usgs.gov 303-236-6482
Geologist Danielle A Olinger dolinger@usgs.gov 303-236-7771
Geophysicist Dana E Peterson dpeterson@usgs.gov 303-236-1403
Chemist Danny L Rutherford drutherford@usgs.gov 303-236-0546
Scientist Emeritus David B Smith dsmith@usgs.gov 303-236-1849
Information Technology Specialist Eynar N Ayupov eayupov@usgs.gov 303-236-1181
Scientist Emeritus Karl J Ellefsen ellefsen@usgs.gov 303-236-7032
Research Geologist Erin Marsh emarsh@usgs.gov 303-236-2473
Geophysicist Evan Cox emcox@usgs.gov 303-236-4834
Supervisory Research Geophysicist Eric D. Anderson, Ph.D. ericanderson@usgs.gov 303-236-5652
Research Geologist Garth E Graham ggraham@usgs.gov 303-236-1558
Scientist Emeritus Gregory K Lee glee@usgs.gov 303-236-2491
Physical Scientist Matthew Granitto granitto@usgs.gov 303-236-1412
Scientist Emeritus Gregg A Swayze, Ph.D. gswayze@usgs.gov 303-236-0925
Geophysicist Gavin S. Wilson gswilson@usgs.gov
Research Geologist Heather A Lowers hlowers@usgs.gov 303-236-1184
Administrative Operations Assistant Ian D Macdonald idmacdonald@usgs.gov 303-236-1702
Research Geologist William Ridley iridley@usgs.gov 303-236-5558
Scientist Emeritus John N Aleinikoff jaleinikoff@usgs.gov 303-236-7884
Scientist Emeritus Jeffrey Phillips jeff@usgs.gov 303-236-1206
Geologist Jonathan A Funk jfunk@usgs.gov
Research Physical Scientist JoAnn Holloway jholloway@usgs.gov 303-236-2449
Physical Scientist John D Horton jhorton@usgs.gov 303-236-1921
Research Geologist Jeffrey L Mauk jmauk@usgs.gov 303-236-5605
Research Geologist Julia A. McIntosh, Ph.D. jmcintosh@usgs.gov
Geophysicist John M Meyer jmmeyer@usgs.gov 303-236-3531
Research Geologist Jean M Morrison jmorrison@usgs.gov 303-236-6366
Physical Scientist Jay M. Thompson, Ph.D. jmthompson@usgs.gov
Research Geologist Jaime S Azain jsazain@usgs.gov 303-236-9376
Research Geologist Jonathan Caine jscaine@usgs.gov 303-236-1822
Research Chemist Kate Campbell kcampbell@usgs.gov 303-236-2441
Geophysicist Jade Crosbie kcrosbie@usgs.gov 303-236-1351
Scientist Emeritus Karen Duttweiler Kelley kdkelley@usgs.gov 303-236-2467
Research Geologist Karen Lund klund@usgs.gov 303-236-5600
Physical Scientist Kristian M Price kprice@usgs.gov 303-236-1249
Scientist Emeritus Kathleen S (Kathy) Smith, Ph.D. ksmith@usgs.gov 303-236-5788
Research Geophysicist Lyndsay B Ball lbball@usgs.gov 303-236-0133
Research Chemist LaDonna Choate lchoate@usgs.gov 303-236-1241
Research Geologist Leah E Morgan, Ph.D. lemorgan@usgs.gov 303-236-4729
Research Chemist Leonid Neymark lneymark@usgs.gov 303-236-7898
Geologist Laura Pianowski lpianowski@usgs.gov 303-236-5454
Geologist Mitchell Bennett mbennett@usgs.gov 303-236-0211
Scientist Emeritus Mary Ellen Benson mbenson@usgs.gov 303-236-5524
Research Geologist Michael Cosca mcosca@usgs.gov 303-236-4974
Physical Scientist Matthew P Emmons memmons@usgs.gov 303-236-6259
Scientist Emeritus Martin Goldhaber mgold@usgs.gov 303-236-1521
Physical Scientist Margaret A Goldman mgoldman@usgs.gov 303-236-1727
Student Trainee (Geology) Mario A Guzman mguzman@usgs.gov 303-236-2444
NAGT Intern Micah A Hernandez mhernandez@usgs.gov
Scieintist Emeritus Michael H Powers mhpowers@usgs.gov 303-236-1349
Student Trainee (Geophysicist) Micah Mayle, Ph.D. Candidate mmayle@usgs.gov
Geologist / Center Outreach and Web Coordinator Maria R Montour mmontour@usgs.gov 303-236-2787
Research Chemist Michael Pribil mpribil@usgs.gov 303-236-9374
Information Technology Specialist Michael S Settembre msettembre@usgs.gov 303-236-1181
Research Geologist Mendenhall Neil P Griffis ngriffis@usgs.gov
Physical Scientist Nick Karl nkarl@usgs.gov 303-236-1222
Research Geophysicist Paul A Bedrosian pbedrosian@usgs.gov 303-236-4834
Geophysicist Philip J. Brown pbrown@usgs.gov 303-236-1310
Research Geologist Poul Emsbo pemsbo@usgs.gov 303-236-1113
Research Geologist Philip L Verplanck plv@usgs.gov 303-236-1902
Geophysicist Patricia G MacQueen, Ph.D. pmacqueen@usgs.gov
Research Geophysicist Raymond Kokaly raymond@usgs.gov 303-236-1359
Scientist Emeritus Richard I Grauch rgrauch@usgs.gov 303-236-5551
Emeritus Scientist Robert J Horton, Ph.D. rhorton@usgs.gov 303-236-1338
Geologist Richard J Moscati rmoscati@usgs.gov 303-236-0023
Geologist A. Rae Ann Orkild-Norton rorkild@usgs.gov 303-236-1213
Physical Science Technician Renee Pillers rpillers@usgs.gov 303-236-7896
Research Geologist Ryan D Taylor rtaylor@usgs.gov 303-236-1882
Scientist Emeritus Russell G Tysdal rtysdal@usgs.gov 303-236-5597
Records and Information Management Specialist Sarah D Davidson sddavidson@usgs.gov
Research Geologist Sean P. Gaynor, Ph.D. sgaynor@usgs.gov
Geophysicist Stephanie R James sjames@usgs.gov 303-236-1405
Scientist Emeritus Steven K McDanal smcdanal@usgs.gov 303-236-1187
Scientist Emeritus Steven M Smith smsmith@usgs.gov 303-236-1192
Scientist Emeritus Thomas J Casadevall tcasadevall@usgs.gov 303-236-5648
Research Chemist Thomas Chapin tchapin@usgs.gov 303-236-5795
Scientist Emeritus Todd K Hinkley thinkley@usgs.gov 303-236-1427
Geophysicist Todd Hoefen thoefen@usgs.gov 303-236-2456
Research Geophysicist V. J. Grauch tien@usgs.gov 303-236-1393
Geologist Tyler J Kane, M.S. tkane@usgs.gov 303-541-3097
Physical Scientist Uriah C Vigil uvigil@usgs.gov 303-236-5651
Scientist Emeritus William Benzel wbenzel@usgs.gov 303-236-2444
Physical Scientist Zachary C Bueghly zcbueghly@usgs.gov 303-236-5588