Skip to main content
U.S. flag

An official website of the United States government


We welcome your inquires about our research and data. Please contact us and follow us on our Twitter account.


Social Media


Employee Directory

Job Title Name Email Phone
Earth MRI Science Coordinator / Research Geologist Warren C Day, Ph.D. 303-384-2682
Associate Program Coordinator / Research Engineer Tanya J Gallegos, Ph.D. 703-648-6181
Earth MRI Deputy Science Coordinator / Research Geologist Patricia J Loferski, Ph.D. 703-648-6100
Mineral Resources Program, Program Manager, Earth Mapping Resources Initiative (Earth MRI) Darcy K. McPhee, PhD. 571-342-7050
Program Analyst James L Mosley, MS., MBA. 703-648-6312
Associate Program Coordinator - Science Suzanne W Nicholson, Ph.D. 703-648-6344
Center Director Colin F Williams, PhD 650-439-2881