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What We Do:

We provide quality geophysical services through our Zonge Geosciences, Inc. Colorado office for mining geophysics, environmental geophysics and engineering geophysics users.

History of Zonge Geosciences, Inc. (Colorado)

Since our inception under the guidence of Phil Sirles in early 2005, Zonge Geosciences, Inc. (Colorado) has been providing high quality geophysical services utilizing state-of-the-art equipment and processing software to hundreds of clients in various industries within the public and private sectors. Zonge's definition of quality service is applying the appropriate geophysical methods to solve geologic problems in a responsive, cost effective manner. Services have included mapping depth-to-rock, fault detection, environmental applications such as underground storage tank (UST) and 55-gallon-drum detection and landfill delineation, groundwater exploration, geologic mapping, geotechnical assesment, seismic hazard analysis, IBC site classification, vibration monitoring, geothermal exploration, UXO detection, field support for large seismic reflection surveys, landslide hazard and slope stability analysis, locating lost utility lines, void detection and dam-seepage detection and assesment. These projects often required an innovative integration of multiple geophysical methods with existing engineering and geologic data bases.

In late 2006 Zonge Geosciences, Inc. acquired the business assets and equipment of MicroGeophysics Corportion (MGC). Positive attributes of this acquisition are the presence of similar business assets and increased capital resources. David Butler, the principle geophysicist of the former MGC, is currently heading opperations as the senior geophysicist at the Zonge Colorado office, and will respond quickly to your inquiries. The Zonge Colorado office has provided a variety of geophysical services to hundreds of clients with projects in several states, including Hawaii, Alaska and international locations incuding Iraq, Greenland and South Africa.

Zonge Geosciences, Inc. currently conducts geophysical services for clients on environmental projects throughout the U.S. The integrated geophysics approach applied to environmental problems has been highly successful in solving complex investigation and remediation problems. Zonge's approach of fielding highly qualified geophysicists, the latest geophysical equipment and computer resources in the field has proven that real-time in-field solutions are possible. Sophisticated and complete real-time results are the future industry standard.

Zonge's personnel are trained for multiple geophysical investigations, including those involving the handling of explosives, operations near hazardous waste, and UXO detection. Zonge's written QC/QA program has been accepted by both private and government clients.

In the last few years the application of multiple geophysical techniques to complex environmental problems has grown. However geophysics has been used only to a small fraction of its potential in the engineering and environmental fields.

Additional Information:

History of MicroGeophysics Corporation

Microgeophysics Corporation (MGC), founded in 1974, conducted a successful business from offices in Colorado for more than 30 years. Tthe professionals at MGC provided quality, integrated geophysical services to clients in the environmental, engineering, exploration and earthquake seismology industries. In the fall of 1973, David Butler and Larry Brown were consultants in the area of microearthquake seismology as applied to geothermal exploration. Client satisfaction lead to the incorporation of MGC in the spring of 1974. For the first few years, microearthquake surveys for geothermal exploration supported the company. As opportunities increased in the geophysical contracting industry, the principals of MGC decided that diversification was appropriate. This policy was initiated in the late 70's and produced significant dividends by the early 80's. Diversification included developing new geophysical techniques for the geothermal industry and developing the new markets of engineering geophysics, oil exploration, mineral exploration and seismic hazard analysis for dam sites.

Geothermal exploration by MGC occurred on projects located in Japan, the Philippines, India, Central America, Hawaii, Alaska and all of the western states. Methods used included microearthquake surveys, engineering and crustal scale seismic refraction, gravity, magnetics, D.C. electrical methods, electromagnetics, self potential, seismic reflection, water geochemistry, soil-mercury geochemistry, heat-flow measurements, gradient well drilling and geophysical and geological well logging. The petroleum industry has also used MGC's services since 1978. Oil exploration projects have ranged from induced polarization (IP) research to gravity and magnetics. MGC has performed IP, electromagnetics, and seismic refraction for mineral exploration clients in the western U.S. The mining industry has always been an important segment of MGC's business.

In the early 80's MGC conducted engineering geophysics projects within the state of Colorado. This business involved both classical engineering for the quarry industry, as well as environmental geophysics at places like the Rocky Mountain Arsenal (RMA). MGC's project at RMA was one of the first geophysical surveys (conducted in 1976 and 1977) at the Arsenal. The project was an integrated survey of refraction, SP, and D.C. electrical methods. Other methods employed by MicroGeophysics for engineering geology include precision gravity, ground penetrating radar and magnetics as well as geological-structural and petrological mapping.Also in the 80's, the Denver Water Department approached MGC with a project concerning the historical seismicity of the Front Range of Colorado. This effort lead to the deployment of a large earthquake-recording network. This relationship with the Denver Water Department has enabled MGC professionals to become experts in earthquake risk analysis.

In the last few years, MGC provided a wide range of geophysical services to a diverse group of clients in the earth-science engineering and construction industries and conducted over 100 engineering geophysics surveys for a government agency in the western U.S. These projects involved a sophisticated mix of geophysical techniques including P and S wave refraction, high-resolution electromagnetic and high-resolution reflection surveys. The majority of the surveys were embankment evaluations, leakage surveys and rippability studies. MGC applied the lessons learned from 25 years of experience, and the ability to effectively manage the logistics and technology of such a wide range of geophysical methods and client needs is the valuable legacy of MGC's history.

History of Zonge Engineering & Research Organization

Zonge Engineering and Research Organization (ZERO) is a specialist in the development and application of broadband electrical and electromagnetic methods. For more than 30 years ZERO has been a leader in the development and application of geophysical methods to subsurface imaging. Starting with minerals exploration in the 1970's, ZERO has since expanded into hydrological, hydrocarbon, environmental, engineering, and unexploded ordnance applications and extended our capabilities to include potential field and seismic surveys. ZERO's success has been the result of a continuous commitment to the development of new geophysical tools and the integration of the Engineering and Field Service groups, leading to effective and innovative tools. The development of the receiver and transmitter systems has resulted in adaptation of these tools to numerous new applications and created the most versatile electrical and EM receivers available in the world today. This commitment to innovation has led to a series of geophysical firsts: The first full reference Complex Resistivity measurements The first battery powered digital IP receiver The first commercial CSAMT surveys The first microsecond resolution TEM system The first fully digital TDEM Unexploded Ordnance detection system An employee-owned small business, Zonge Engineering and Research Organization integrates research and development programs, equipment manufacturing, and field services. The integration of these roles allows ZERO to provide their clients complete and innovative solutions to their geophysical problems. Please look a little further at ZERO by following the link below.
For additional information on Zonge Engineering and Research Organization, please visit our other website at www.zonge.com

Technical Staff / Resumes

Phil Sirles

Phil Sirles manages the Denver-based Zonge Divisional office. In 1980, he received his B.S. in Geology from Fort Lewis College, Durango, Colorado. He recieved his M.S. in Geophysics in 1986 from the Mackay School of Mines, University of Nevada-Reno, Nevada. Mr. Sirles has overseen the development of Zonge Geosciences – Colorado, a Division of Zonge Engineering and Research Organization (Zonge). This has involved: hiring of qualified geophysicists and technicians; creating and implementing a marketing strategy; writing full-scale commercial and government proposals; conducting geophysical investigations; and acting as Program Quality Control Manager. He has procured sole-sourced government contracts under DoD funding (e.g., USACE and AEC), and established large commercial contracts for long-term geophysical projects. As a Division Manager, Mr. Sirles is also responsible for the sustained growth of the company, including development of long-range growth strategies including business planning.

Phil Sirles' Resume: (.doc) (.pdf)

David Butler

Dave Buttler serves as a senior geophysicist at the Denver-based Zonge Divisional office. In 1962, he received his B.S. in Earth Sciences from Massachusetts Institute of Technology (MIT), Boston, Massachusetts. He recieved his D. Sc. in Geophysics in 1969 from the Colorado School of Mines (CSM), Golden, Colorado. Mr. Butler worked as a research associate and associate professor at the CSM until 1980. Mr. Butler co-founded MicroGeophysics Corporation in 1974, and helped develope the applications of microseismic monitoring in seismic hazard analysis and in geothermal exploration. He has extensive experience in management, consulting and the application of geophysics for solving complex geologic problems. Mr. Butler is a registerred geophysicist in the state of California.

Dave Butler's Resume: (.doc) (.pdf)

James Scofield

James Scofield serves as a senior geophysicist at the Denver-based Zonge Divisional office. In 1978, he received a B.S. in Geophysical Engineering, a B.S. in Methematics and an A.S. in Chemistry from the Montana College of Mineral Science and Technology, Butte, Montana. He recieved his M.S. in Geophysical Engineering in 1980 from the Montana College of Mineral Science and Technology, Butte, Montana. Mr. Scofield served as a Senior Geophysicist directing non-seismic geophysics for Amoco Production Company, and has overseen numerous MT and TEM surveys in a variaty of challenging environments. He has extensive experience in managing, consulting and the application of geophysics for solving complex geologic problems.

James Schofield's Resume: (.doc) (.pdf)

Todd Meglich

Todd Meglich serves as a senior geophysicist at the Denver-based Zonge Divisional office. In 2000, e received his B.S. in Geophysical Engineering from Colorado School of Mines (CSM), Golden, Colorado. He recieved his M.S. in Geophysics in 2008 from Colorado School of Mines (CSM), Golden, Colorado. Mr. Meglich served as a Project Geophysicist for Blackhawk Geoservices, Inc., and has overseen various aspects of numerous UXO and engineering related projects. He has extensive experience in managing, field opperations, data processing and the application of geophysics for solving complex environmental and engineering problems.

Todd Meglich's Resume: (.doc) (.pdf)

Justin Rittgers

Justin Rittgers is a project geophysicist at the Denver-based Zonge Divisional office. In 2003, he received his B.S. in Geophysical Engineering from Colorado School of Mines (CSM), Golden, Colorado. Mr. Rittgers worked as a research assistant under two seperate projects while at CSM, was president of the CSM student chapter of the Society of Exploration Geophysicists (SEG), volunteered as a research assistant for the Crustal Imaging and Characterization Team at the United States Geological Survey (USGS). He has extensive experience in the application of geophysics for solving complex geologic problems, utilizing virtually all geophysical methods. He has conducted all aspects of a multitude of projects including project design, team management, data collection, data processing and reporting of results.

Justin Rittgers' Resume: (.doc) (.pdf)

Greg Jones

Greg Jones serves as a geophysicist at the Denver-based Zonge Divisional office. In 1987, he received his B.S.in Geophysics from the Colorado School of Mines (CSM), Golden, Colorado. Since then, he has served as a field and lab technician for several geotechnical companies, has performed gamma logging, and he has carried out gravity data collection. Since joining the Zonge team in 2008, he has gained experience as a field crew cheif, geophysical data aquisition, data processing and analysis for solving complex geologic problems.

Greg Jones' Resume: (.doc) (.pdf)

John Rupp

John Rupp is a geophysical field-technician at the Denver-based Zonge Divisional office. In 2005, he received his B.S.in Geology from Saint Lawrence University, Canton, New York. Since then, he has served as a geological/geophysical field-technician, has carried out EM-61 data collection and data processing/analysis for a UXO survey, cleared borehole drilling locations of utilities using a Ground Penetrating Radar (GPR), and he has carried out Phase I and II ESA investigations. Since joining the Zonge team in 2008, he has gained experience in geophysical data aquisition, data processing and analysis for solving complex geologic problems.

John Rupp's Resume: (.doc) (.pdf)

Contact Us:

Zonge Geosciences, Inc.
phone: 1-800-GEOPHYSics (1-800-436-7497)
fax: 720-962-0417

zongecolo@zonge.us