The researchers of CGEM have a diverse background and bring with them a broad range of expertise covering theory, modeling, inversion, and practical applications of gravity, gravity gradiometer, magnetic, electrical,and electromagnetic methods.

FACULTY

Yaoguo Li Associate Professor, Department of Geophysics; Principal Investigator [CGEM, GMRC, UXO & CSEM]
Specialize in 3D modeling and inversion of gravity, magnetic, and electrical data as well as numerical techniques for processing and inverting large data sets. 		(303) 273-3510
Richard Krahenbuhl Research Assistant Professor, Department of Geophysics [CGEM, GMRC & UXO]
Specializes in hybrid and global optimization methods for large scale inversions; modeling & inversion of gravity and magnetic data, and time-lapse monitoring.		 (303) 384-2329
Misac Nabighian Distinguished Senior Scientist, Department of Geophysics [CGEM, GMRC, UXO & CSEM]
Specializes in theory and application of potential field and EM methods in mineral and petroleum applications. 		(303) 273-3933


GRADUATE STUDENTS

Andy Kass
mkass@mines.edu

PhD candidate, Department of Geophysics [CGEM]
Research interests: Hydro-geophysics, induced potential phenomena
Originally from Texas, Andy enjoys sailing, skiing, and cheering for the Colorado Mammoth. ____________________________________________________________________________

Rachel Vest Woolf

rwoolf@mines.edu

Masters Candidate [CGEM]
Reserach interests: geothermal time lapse gravity
_____________________________________________________________________________

Ryan North

rnorth@mines.edu
PhD Candidate, Department of Geophysics [UXO,CGEM]
Research interests: UXO Discrimination Originally from Upper Sandusky, Ohio. Ryan enjoys basketball, biking, and reading. _____________________________________________________________________________

Leon Foks

nfoks@mines.edu
PhD Candidate, Department of Geophysics [CGEM]

Research Interests: image processing and its application to geophysical interpretation and employing statistical analysis of airborne magnetic data
_____________________________________________________________________________

Trevor Irons

tirons@mines.edu

PhD Candidate, Department of Geophysics [CGEM & GMRC]
Research topics: Numerical modeling of Nuclear Magnetic Remnance (NMR) data as well as inverse methods. Trevor enjoys bike riding, rock climbing, long walks on the Cretaceous beach and linux. _____________________________________________________________________________

Jiajia Sun

jsun@mines.edu

Ph.D. Candidate,
Research interests: time-lapse geophysics and geophysical inversion constrained by geological and other geophysical information. For his PhD comps project, he developed adaptive Lp inversion method to recover both blocky and smooth features in the subsurface. He also worked on joint inversion of surface and borehole gravity with thresholding and density constraints. He is currently working on joint inversion of multiple geophysical datasets using cross-gradient and petrophysical constraints.
Received his B.Sc. in geophysics from China University of Geosciences
(Wuhan) in June, 2008 _____________________________________________________________________________

Cericia Martinez

cemartin@mines.edu
Ph.D. Candidate
Interned with Williams Companies doing petrophysical work for a summer and continued on to be an Exploration Intern during the school year. She also held two summer internships with Devon Energy. She is currently working with airborne gravity gradiometry applied to an iron ore deposit in Brazil. Recieved her B.S. in Geophysics from Colorado School of Mines in May 2009.
______________________________________________________________________________

Jeff Shoffner

jeff.shoffner@gmail.com
Masters Candidate. The 2009 recipient of the SEG Lucien LaCoste Scholarship.
Currently pursuing a masters degree in geophysics while working with the US Navy Geothermal Program Office using gravity and magnetic inversion to understand basement structure and faulting in a geothermal prospect in Western Nevada.
Research interests: range from mining and petroleum exploration to environmental problems, specifically using geologic background and field experience to approach geophysical problems, such as inversion techniques and interpretation mainly for gravity and magnetics, but also electrical and electromagnetic methods. ______________________________________________________________________________

Kathryn Jeffcoat

kjeffcoa@mines.edu
Masters Candidate [CGEM]
Currently a STEP student with the USGS. Interested in and working on low field NMR.
Originally from: Texas. Received a B.A. in philosophy from Texas A&M University, then studied geology at the University of Arkansas. _____________________________________________________________________________

Mohamed Abdulla

mabdulla@mines.edu

 Masters Candidate. 2010 ExxonMobil MENA scholar.
Has a background in civil engineering and is currently exploring the geophysical realm. He is now pursuing a masters degree in Geophysics. Research Interests: Broad interests in this new field: rock physics, petroleum exploration, mining and of course inversion. Currently formulating an inversion technique to aid in reservoir characterization using electromagnetic data.
______________________________________________________________________________
Anya Reitz
anyareitz@gmail.com		 Bachelor's in Geophysics candidate, in senior year of program Has worked with VTEM data over the summer/fall of 2010 and is interested in continuing for a Master's at CSM and studying gravity gradiometry inversion. _________________________________________________________________________________

Brent Putman
bputman@mines.edu

Bachelor's in Geophysics candidate, in senior year of program
Research interests: Electrical Resisitivity Tomography (ERT), internal erosion characterization, water table determination, general potential fields applications, and java programming. _________________________________________________________________________________


UNDERGRADUATE STUDENTS

Camriel Coleman
ccoleman@mines.edu

  

Joeseph Caprioti
jcapriot@mines.edu

  
Jennifer Brush
jbrush@mines.edu		 Bachelor's in Geophysics candidate, in sophomore year of program. Has completed an internship with the Engineering Research and Design Center. Has trained and completed field work with gravimeters, ground conductivity meters, magnetometers, and nuclear magnetic resonance surveys. Is interested in continuation with the joint Master's program.
Research interests: geothermal energy, volcanology, and 4D Gravity _________________________________________________________________________________


ALUMNI


Kristofer Davis
PhD; Research interests: ASR monitoring, Gravity and Magnetic inversion methods, TDEM, stuff _________________________________________________________________________________
Marco Braga
Visiting Scholar from Companhia Vale do Rio Doce, Brazil.
Research interests: Gravity Gradiometry
_________________________________________________________________________________
Whitney Goodrich

Master of Science, 2007
Research topics: UXO discrimination with Remanent Magnetization; Modeling and inversion of potential field data, specifically that related to volcanic systems.
_________________________________________________________________________________
Barry Kirkendall

Doctor of Philosophy, 2007,
Research Topics: Subsurface numerical modeling of low frequency electromagnetics (<500 KHz); electromagnetic coupling between passive and radiating bodies; close proximity gravity gradiometry; modeling of highly diffuse electromagnetic signals.
_________________________________________________________________________________
JeongMin Lee Master of Science 2006
Research topics: Modeling and inversion of potential field data.
_________________________________________________________________________________
Sarah Shearer
Master of Science 2005; Thesis: Inversion of total gradient data for magnetization in 3D.
Research interests: teaching earth science, crustal studies, and plate tectonics _________________________________________________________________________________
David Sinex
Master of Science 2005
Research topics: UXO Discrimination; Effect of magnetic soils on UXO magnetometer data; Depth-estimation using gravity and magnetics; Forward modeling and procession of potential-field data sets _________________________________________________________________________________
Qiaoluan Li

Master of Science, 2001
Thesis topic: Finite element solution of the minimum curvature gridding problem in geophysics _________________________________________________________________________________
Marc Pessel Post-doctoral Fellow, 2001
Thesis topic: Multiscale approach using simulated annealing
Research interests: Multigrid methods for very fast numerical resolution of Poisson's equation; Interpretation of sources of potentials fields with the continuous wavelet transform and extended Euler deconvolution _________________________________________________________________________________
Alisa Green

Master of Science, 2003
Thesis topic: Crustal studies using magnetotellurics _________________________________________________________________________________
Cambrey Johnston Bachelor of Science, 2002
Research interests: Modeling and inversion of gravity gradiometry data; 3D magnetic field envelope mapping
_________________________________________________________________________________
Shawna Leavitt

Bachelor of Science, 2002
Research interests: Environmental geophysics _________________________________________________________________________________
Matt Haney

Doctor of Philosophy 2005
Research topics: Fluid flow along fault zones; Techniques for identifying remanent magnetization; Multiple scattering of waves; Numerical computing via the spectral-element method. _________________________________________________________________________________
Paul Schwering

Bachelor of Science 2005
Research interests: Gravity and electrical field methods; Electrical properties of Martian soil simulants _________________________________________________________________________________

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