US Geochemical
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Geochemical Analysis for Oil and Gas Exploration

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(720) 445-6455


US Geochemical


4945 South Routt Street

Littleton, CO, 80127

Office hours:

8:00 a.m. to 5:00 p.m.


US Geochemical began in 1994 as a Bulletin Board Service to connect oil and gas explorationists with Surface Exploration Technologists for the purpose of educating the oil and gas industry about the benefits of microseep detection. US Geochemical initially supported the APGE with webspace, put the first AAPG conference notices online, and supplied online publication listings for the Mississippi Geological Survey.

US Geochemical now gets more than 10,000 hits per year and has the most comprehensive list of SET contractors available. In 2004 US Geochemical officially joined the other contractors and provides analytical services to those interested in using Surface Exploration Technologies.

James M. Fausnaugh received a Bachelor of Science Degree from Fort Lewis College in geology in 1978.

Following graduation he worked on the NURE Project in northeastern Nevada, acquiring water and stream sediment samples for chemical analysis. This was followed by a year at Skyline Laboratories and Golden Labs, where he performed chemical analyses for numerous elements. At Skyline he spent time in sample preparation as well as learning various methods of sample digestion. At Golden Labs he helped develop and calibrate the Iodine method that is currently used as a petroleum indicator.

In 1980, he joined Petro-Labs, Inc. as Field Operations Manager.

The following year he joined GRDC, Inc. He was instrumental in developing and refining new and existing geochemical techniques for the exploration of petroleum. In 1986 he researched, modified, and applied the Eh, pH, and conductivity suite of exploration tools. In addition he developed and applied modern statistical analytical techniques to the interpretation of surface geochemical data. Methods he developed were used in two analog studies by the Colorado School of Mines Reservoir Characterization Project.

He is a 30 year member of the American Association of Petroleum Geologists, and past President of the Rocky Mountain Chapter of the Association of Petroleum Geochemical Explorationists.

Allexan, S., Fausnaugh, J., Goudge, C., and Tedesco, S., 1986. The Use of Iodine in Geochemical Exploration for Hydrocarbons. APGE Bulletin v. 2, no. 1, p. 71-93, December.

Tedesco, S., Goudge, C., Fausnaugh, J., Allexan, S., 1987. Iodine - An Exploration Tool for Oil and Gas. Oil and Gas Journal, v. 85, no.26, p. 74-77, June 29.

Fausnaugh, J. M., 1989. The Effect of High Soil Conductivity on Headspace Gas Sampling Techniques. APGE Bulletin, v. 5, no. 1, pp. 96-115, December.

Fausnaugh, J. M. 1994. The pH-Eh Relationship in the Detection of Near Surface Hydrocarbons.  AAPG Hedberg Research Conference, Near Surface Expressions of Hydrocarbon Migration, April 24-28, 1994, Vancouver, British Columbia, Canada.

Fausnaugh, J.M., Tedesco, S., Gallagher, A.V., and Goudge, C.K., Advanced Surface Geochemical Techniques for Petroleum Exploration. Short course presented June 11, 1994, Denver, Colorado.

Fausnaugh, J.M., 1995.  Advanced Hydrocarbon Interpretation Using Modified Pixler Plots and Multvariate Statistics.  AAPG Convention, Houston, March 3-5, v. 4, p. 28A. (Abstract Only).

Fausnaugh, J.M., 1995. Statistical Analysis of Geochemical Spatial Point Patterns.  AAPG Bulletin, v. 79, no. 6, p. 917, June (Abstract Only)

Fausnaugh, J.M., 1996. Advanced Surface Geochemical Interpretation With Case Studies. Gulf Coast Association of Geological Societies Transactions Vol. 46 (1996), Pages 474-474 (Abstract Only)

Fausnaugh, J.M., 1996. Reservoir Characterization Using Surface Geochemistry, Sorrento Field, Cheyenne County, Colorado. AAPG Bulletin, v. 80, no. 6, p. 969, June (Abstract Only)

Fausnaugh, J.M., 1996. Methods for Testing the Validity of Surface Geochemical Anomalies.  AAPG Bulletin, v. 80, no. 9, p. 1501, September (Abstract Only)

Fausnaugh, J. M., 1996.  Survey Design and Data Integration When Using Surface Geochemistry.  AAPG Bulletin, v. 80, no. 9, p. 1523, September (Abstract Only)

Fausnaugh, J. M., 1996. Techniques Characterize Reservoirs. Lakewood, Colorado: American Oil and Gas Reporter, November, pp. 75-82.

Fausnaugh, J. M., Jay LeBeau, 1997. Characterization of Shallow Hydrocarbon Reservoirs Using Surface Geochemical Methods. Rocky Mountain Oil Field Testing Center Technical Paper.

Fausnaugh, J. M., Jay LeBeau, 1997. Characterization of Shallow Hydrocarbon Reservoirs Using Surface Geochemical Methods. AAPG Bulletin, v. 81, no.8, p. 1223, July (Abstract Only)

Fausnaugh, J. M., 1997.  A Novel Microbial Survey Method for the Detection of Near Surface Hydrocarbon Microseepage.  AAPG Bulletin, v. 81, no. 9, p. 1550, September (Abstract Only)

Fausnaugh, J. M., 1997.  Eh-pH Relationships in Near Surface Hydrocarbon Geochemical Anomalies.  AAPG Bulletin, v. 81, no. 9, p. 1550 - 1551, September (Abstract Only)

Fausnaugh, J.M., 1999. Field-Based Spectral Analysis.. Hart Oil and Gas World, March, pp. 25-26.

Fausnaugh, J.M., 2002. An Extended Exploration Model.

Fausnaugh, J.M., 2008. Soil Hydrocarbon Alteration: Solid Phase Versus Gas Phase Hydrocarbon Detection. 2008 Annual AAPG Convention, April 20-23, 2008, San Antonio, Texas, #90078 (2008). AAPG/Datapages, Inc., 1444 South Boulder, Tulsa, OK, 74119, USA .

Fausnaugh, J.M., 2008. Combined Electromagnetic Induction and Magnetic Susceptibility Surveys for the Detection of Near Surface Geochemical Anomalies. AAPG Rocky Mountain Section Meeting 2008 (Abstract Only)

Fausnaugh, J.M., 2008. Method is Alternative to Soil Gas for Detecting Seepage Anomalies.. Oil and Gas Journal, May, pp. 37-42.

Fausnaugh, J.M., 2009. Nongas-phase Hydrocarbon Sampling Aids Detection of Seepage Anomalies.. Oil and Gas Journal, January, pp. 31-36.

Fausnaugh, J.M., 2011. Between the Reservoir and the Surface: An Example of Hydrocarbon Microseepage. Oil and Gas Journal, Volume 109, No. 36, September 5.