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
ygli@mines.edu


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 mnabighi@mines.edu

Richard Krahenbuhl
Research Faculty (post-doc fellow), Department of Geophysics [CGEM, GMRC & UXO]

Research topics: Binary inversion of gravity and gravity gradiometry data; Geophysical modeling of zinc silicate deposits; Geophysics for mapping the Ludlow Massacre archaeology site.

Originally from California, USA. Rich's interests include backyard astronomy, hiking, playing with lava and traveling.

(303) 273-3904 rkrahenb@mines.edu

 
 
 STUDENTS
 

Andy Kass

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.

(303) 273-3904 mkass@mines.edu

Kristofer Davis
PhD candidate, Department of Geophysics [CGEM]

Research interests: ASR monitoring, Gravity and Magnetic inversion methods, TDEM, stuff

Originally from Pennsylvania, USA. Kris likes sailing, backpacking, and skiing and rooting for the Steelers.

(720) 937-0319 kdavis@mines.edu


 Kris MacLennan

Doctor of Philosophy candidate, Department of Geophysics [GMRC]

Research interests: Hydro-geophysics, EM, Potential Fields

Originally from Oakland, California, Kris enjoys singing, reading, and wargaming.

(510) 229-0363 kmaclenn@mines.edu

Trevor Irons
Master of Science candidate, Department of Geophysics [CGEM & GMRC]

Research topics: Numerical modeling of Nuclear Magnetic Remnance (NMR) data as well as inverse methods.

Trevor enjoys bikeriding, rockclimbing, long walks on the Cretaceous beach and linux.

tirons@mines.edu

Neal Dannemiller
Master of Science candidate, Department of Geophysics [CGEM & GMRC]

Research topics: Joint inversion of magnetic data for depth and susceptibility; Determination of total magnetization direction

Originally from North Canton, Ohio, USA. Neal enjoys playing soccer and basketball, Thursdays at the Rockrest, mountain biking for beginners, skiing, and taking vacations. On his free time, he works for an oil company and enjoys trying to finish his degree.

ndannemi@mines.edu

 Todd Meglich
Master of Science candidate, Department of Geophysics [CGEM & UXO]

Research topics: Lava tube detection and characterization, UXO detection and discrimination in magnetic environments.

Originally from Seville, Ohio, USA. Todd enjoys most activities where life and limb are at risk, and the fine art of homebrewing.

toddmeglich@hotmail.com

 Ryan North

PhD Candidate, Department of Geophysics [UXO,CGEM]

Research interests: UXO Discrimination

Originally from Upper Sandusky, Ohio. Ryan enjoys basketball, biking, and reading.

rnorth@mines.edu

 Marco Braga

Visiting Scholar , Department of Geophysics [GMRC]

Research interests: Gravity Gradiometry

Visiting scholar from Companhia Vale do Rio Doce, Brazil.

marco.antonio.braga@cvrd.com.br

Vinicio Sanchez
PhD candidate, Department of Geophysics [CGEM & UXO]

Research topics: Interpretation of TDEM and magnetic data for UXO detection.

Originally from Mexico, Vinicio enjoys swimming, running, and interpretive dance, well not really. For more info, see Neal's last sentence.

hsanchez@mines.edu
 

 ALUMNI
 

 Yaping Zhu
PhD, 2006, Department of Geophysics [CWP & CGEM]

Research topics: Attenuation anisotropy; wavelet domain inversion of 3-D IP data; seismic signatures of fault zones.

Originally from China; received undergraduate degree from Tsinghua University in Beijing. Yaping enjoys playing volleyball, and an ancient board game "Go" (called Wei Qi in China and Baduk in Korea).

 

Whitney Goodrich
Master of Science, 2007, Department of Geophysics [CGEM]

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

Originally from Virgina, received undergraduate degree from the University of Texas at Austin. Whitney enjoys hiking, camping, skiing, traveling, and living in Hawaii.



Barry Kirkendall
Doctor of Philosophy, 2007, Department of Geophysics [CGEM]

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.

Originally from Southern California, Barry pledges allegience to Northern California. His non-science interests are monetary and fiscal policy, effects of free trade on third world countries, and attempting to slam-dunk the basketball.

 

Qiaoluan Li
Master of Science, 2001, Department of Mathematics [GMRC]

Thesis topic: Finite element solution of the minimum curvature gridding problem in geophysics

 

Marc Pessel
Post-doctoral Fellow, 2001 [GMRC]

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, Department of Geophysics [CGEM]

Thesis topic: Crustal studies using magnetotellurics

 

Dongie Cheng
Master of Science, 2003, Department of Geophysics [GMRC]

Thesis topic: Inversion of gravity data for base salt.

 

Cambrey Johnston
Bachelor of Science, 2002, Department of Geophysics [GMRC]

Research interests: Modeling and inversion of gravity gradiometry data; 3D magnetic field envelope mapping

 

Shawna Leavitt
Bachelor of Science, 2002, Department of Geophysics [GMRC]

Research interests: Environmental geophysics

 

 Matt Haney
Doctor of Philosophy 2005, Department of Geophysics [CWP, CGEM & GMRC]

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

 

 Sarah Shearer
Master of Science 2005, Department of Geoophysics [CGEM & GMRC]

Thesis topic: Inversion of total gradient data for magnetization in 3D.

Research interests: teaching earth science, crustal studies, and plate tectonics

 

Paul Schwering
Bachelor of Science 2005, Department of Geophysics [CGEM]

Research interests: Gravity and electrical field methods; Electrical properties of Martian soil simulants

 

David Sinex
Master of Science 2005, Department of Geophysics [CGEM & UXO]

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

 

JeongMin Lee
Master of Science 2006, Department of Geophysics [CGEM & GMRC]

Research topics: Modeling and inversion of potential field data.

Originally from South Korea. JeongMin enjoys exploring the internet.

 
 
 
 
 
 ASSOCIATED RESEARCHERS
 

Justin Hedley
Masters of Science (1991), Department of Geophysics, Colorado School of Mines. [CGEM, GMRC]

Java programmer hired for the development of graphical user interfaces and data viewers for GMRC applications.

Originally from California, USA. Justin enjoys biking, hiking, skiing and surfing. Professional interests include Object Oriented program design and seismo-electric geophysics. Justin will happily code for food!

jphedley@hotmail.com

Hengren Xia
Assistant Research Professor, Department of Geophysics [GMRC]

Specialist in interactive modeling and its applications using complex geometry

(303) 273-3500 hxia@mines.edu 

Tom LaFehr
Distinguished Senior Scientist, Department of Geophysics [GMRC]

Well-known leader of potential field applications in the oil and gas industry

(970) 241-4541 lafehrtom@aol.com 

Tim Niebauer
Adjunct Professor, Department of Geophysics [GMRC]

Developer of the FG5 absolute gravimeter; specializes in instrumentation and field applications

(303) 828-3499 Tmniebauer@aol.com 

     

 

 

Department of Geophysics • Colorado School of Mines • Golden, Colorado 80401
Phone (303) 273-3510 • E-mail: cgem@mines.edu

CGEM Web Pages designed by mcelhinneydesign.com