Our Team

Tom Meuzelaar is founder and owner of Life Cycle Geo. He specializes in geology, geochemistry and data science and has more than twenty years of industry experience. Tom is value-oriented and client-focused, has effectively executed large, complex projects and is a demonstrated leader of technical teams, with emphasis on empowering and mentoring. He is a highly diversified geoscientist who has consistently delivered at the highest technical level. Dr. Meuzelaar has supported mining and oil and gas clients in solving challenging water/rock related problems through all project life cycle stages. One of his core passions is data science- identifying meaningful trends in large datasets and using creative visualization techniques to effectively communicate the essential story.

Tom is currently engaged in project work leveraging drill core assay and hyperspectral core imagery and using unsupervised and supervised machine learning tools, towards mine process optimization. He has evaluated complex geochemical models to assess a variety of equilibrium and kinetic gas/water/rock processes at variable temperature, pressure, salinity, redox and transport conditions. He has extensive experience as petrographer, mineralogist and geologist, and has taught or co-taught over 35 geochemical modeling short courses, including courses at Goldschmidt conferences, federal research organizations, multinational energy corporations, environmental and mining consultancies and major universities.

Tom enjoys spending his spare time with his wife and three kids, preferably in the Colorado outdoors.

Jacob Waples is a Principal Consultant with Life Cycle Geo. He has over 20 years of experience in mining geochemistry evaluations, including geochemical modeling, closure evaluations and material characterizations. He is experienced working as a part of multidisciplinary teams to support closure planning, permitting, and mine planning studies (e.g., prefeasibility and feasibility) as for geochemical considerations. He has experience modelling contaminant transport, pit lake chemistry, and seepage chemistry from waste rock dumps and heap leach facilities. In the last ten years, his modeling focus has been on tailings geochemistry for closure evaluations, including evaluations of kinetic pyrite oxidation, oxygen ingress dynamics, and cover performance.

Jake has experience with copper, gold, silver, and lithium projects throughout the world, including Chile, Peru, Australia, Ghana, Indonesia, Argentina, and Mexico. In the United States, he has worked on modeling, permitting, and characterization projects in Arizona, New Mexico, Nevada, Utah, California, Minnesota, South Dakota, and Colorado. Jake is a professional geologist in the state of Wyoming, with a Master’s in geology from the University of Colorado and a Bachelor's degree in Earth & Environmental Science from Wesleyan University. His native language is English, and he is proficient in Spanish.

Jake lives Golden, Colorado with his wife and two daughters, all of whom are accomplished musicians. He is the non-musical member of his family, but enjoys good music, biking, and skiing.

Jim Jonas joined Life Cycle Geo as a Principal Consultant in May 2023 with over 20 years of experience in mine site characterization, remediation, and water treatment. Jim has extensive experience in creating conceptual site models and developing/implementing remediation strategies as part of a multidisciplinary team. The skills he brings to the team include developing sampling and analysis plans (often following the DQO process); collecting multi-media samples (air, soil, sediment, water, biota); designing, installing and maintaining remote instrumentation; data management; geochemical modeling; stochastic modeling; statistical analysis; exploratory data analysis; geospatial analysis; and data visualization. Jim has been a commercial UAV pilot for over five years using UAVs to collect imagery/photogrammetry and is a co-inventor of a patented water sampling attachment designed specifically for pit lakes.

Jim believes that technological innovations over the past decade have matured to the point that they should be applied to geoscience problems such that automated data collection and secured wireless transmission can directly feed real-time predictive tools which will ultimately lead to reduced risk, optimized treatment, and lower operational costs. Jim enjoys soaring in his sailplanes—via extracting unseen energy from the atmosphere—above the Rocky Mountains and is passionate about sharing his flying knowledge as a certified flight instructor with students of all ages.

Pam Rohal joined Life Cycle Geo in November 2023 as a Senior Geochemist. She has over 20 years of experience in mining geochemistry evaluations, including geochemical modeling, closure evaluations and material characterizations. She has extensive experience in mine site permitting, operations, closure, and reclamation planning with a focus on characterization and treatment of acid rock drainage and metals leaching impacts. Her expertise in geochemical modeling consists of a wide range of complex water quality and mine waste issues including waste rock and tailings seepage, pore water analysis, acid and neutral mine drainage, pit lake modeling and prediction, and underground mine inflow. She is fluent in a range of water balance and geochemical modeling platforms and has extensive experience in mine water balance modeling and combining GoldSim and PHREEQC to simulate mine operational and closure modeling to optimize strategies for mine water decision-making. Pam has worked extensively in the United States and abroad. She has a master’s degree in Geochemistry/Hydrology from the University of Virginia and bachelor's degrees in Geology and Chemistry from Bucknell University in Pennsylvania.

Residing in Evergreen, Colorado with her husband and two daughters, she enjoys mountain biking, backcountry skiing, and camping with the family in her free time.

Shannon Zahuranec joined Life Cycle Geo in March 2023 with experience consulting to the mining, power, and solid waste industries. Having worked for industry in the past, Shannon couples a very practical approach to consulting with insightful application of geochemical and hydrological principals to solve groundwater quality and waste management challenges. She brings over a decade of applied experience in fate and transport of metals, in situ and passive groundwater remediation, geochemical modeling of multi-phase chemical interactions, prediction of water quality, and contaminant source identification. Her project experience includes acid rock drainage characterization and predictions, mine closure and reclamation planning and implementation, geochemical conceptual site model development, alternate source demonstration, monitored natural attenuation tiered assessment, evaluation and optimization of passive water treatment operations, and hydrogeological investigations.

Shannon enjoys spending her time with her family exploring nature, mountain biking, traveling, and reading endless books with kids.

Erik Guldbech joined Life Cycle Geo in April 2023 and specializes in environmental chemistry and analysis of fate and transport of metals and organic compounds in the environment. His skills include geochemical and hydrogeological conceptual site model development; data analysis and visualization; statistical and geospatial analysis; uncertainty analysis; and geochemical and hydrogeological modelling. Erik has extensive experience in site characterization, mine closure and reclamation planning and implementation, pit lake and site-wide water quality evaluations, and evaluation of acid rock drainage. He utilizes a variety of software platforms and develops coupled models as part of multidisciplinary teams and has completed projects in North and South America and Australia.

Residing in Denver, Colorado, he enjoys rock climbing, skiing, making music, woodworking and traveling in his free time.

Greg Lehn joined Life Cycle Geo, LLC in February 2024. His expertise lies in aqueous geochemistry, mineral weathering, reactive transport modeling, stable and radiogenic isotopes, and forensic geochemistry. Greg’s client portfolio spans a diverse range of sectors, including mining, power, industrial, solid waste, oil and gas, and water treatment. Greg enjoys incorporating complex environmental datasets into "fit-for-purpose" hydrogeochemical conceptual models that help unravel the most challenging questions posed by clients. His project experience includes material characterization, water quality modeling using software including PHREEQC, The Geochemist’s Workbench, and MIN3P, as well as forensic geochemical investigations and contaminant source identification. During his Ph.D. research at Northwestern University, Greg conducted a multi-proxy investigation (major ions, trace metals, stable and radiogenic isotopes) focused on understanding the impact of seasonal permafrost thaw dynamics on mineral weathering in watersheds located on the North Slope of Alaska.

Greg currently resides in Denver, Colorado. When he isn’t working, Greg enjoys spending time with his wife and two sons, running, traveling, backpacking, skiing, and baking.

Jack Gibbons joined Life Cycle Geo in May 2022. He earned his Ph.D. in geology from the University of Arizona in 2018. Since then, he has supported material characterization programs, mine site remedial investigations, and baseline environmental permitting and review studies at locations throughout North America. He is passionate about collaborating on projects at the intersection of data science, environmental geochemistry, and mineral exploration and development.

Jack enjoys spending time outdoors with his family in the Duluth area, curating and expanding his collection of ore deposit thin sections, and native plant gardening.

Diana Brown joined Life Cycle Geo in January 2022 with experience consulting to the mining, oil and gas, and solid waste industries. Her expertise is in geology and geochemistry with extensive experience in forensic geochemical assessments. She uses knowledge of isotopic systems, trace element mobility, and redox chemistry to assess site conditions and provide solutions to clients while taking a practical approach to sampling and data collection. Other project experience includes geochemical characterization of mine materials, alternative source demonstrations (ASD), and hydrogeologic investigations in various regulatory environments. Residing in Reno, Nevada, she is well acquainted with the Nevada mining industry and regulatory environment, but has supported clients across North and South America, Europe, and Australasia.

Diana enjoys spending her time outside hiking and skiing in the eastern Sierra Nevada mountains or inside expanding her culinary skills by trying out new recipes.

Allie Wyman-Feravich joined Life Cycle Geo in January 2023. She earned her Ph.D. in geology from the University of Illinois at Urbana-Champaign in May 2021. She uses her knowledge of stable isotopes, aqueous geochemistry, redox conditions, and sediment geochemistry to solve a range of complex geochemical problems, while her extensive field and laboratory experience allow her to efficiently plan and execute projects from start to finish. Previous project experience includes long-term groundwater compliance monitoring, environmental site characterization, sediment characterization to explore paleohydrology, and lacustrine geochemical modeling to explore impacts of changing environmental conditions on geochemistry.

Allie enjoys spending time her family, baking, and playing pickleball.

Samuel Wright joined Life Cycle Geo LLC in May 2023. He earned his M.Sc. in geology from Northern Arizona University in 2019, with a focus in metamorphic petrology, and his M.Sc. in Data Science from the University of North Carolina at Charlotte in December 2023. He is passionate about working at the interface of natural science and data analytics, utilizing advanced statistical analysis and applied machine learning to extract actionable intelligence from vast amounts of data. Sam is also excited about the potential of ML driven automation and informed decision making in the natural resources sector.

In his free time, he enjoys outdoor adventures with his partner and their pups.

Registered Professional Geoscientist (P.Geo.) – Province of British Columbia; Fellow of the Association of Applied Geochemists; Member of the International Association for Mathematical Geosciences; Member of the Society of the Geochemical Society; Recipient of three distinguished awards in the applications of mathematical/statistical geosciences. Eric has +35 years of experience in a range of geosciences disciplines including mineral exploration, geologic mapping, geochemical surveys and resource assessment. Eric is an internationally recognized expert in the evaluation and interpretation of geochemical survey data at continental, regional and camp scales. This includes geochemical data derived from rock/drill core, till, lake sediment, stream, soil and weathered materials geochemistry. His expertise has been used to identify and isolate areas of mineralization for a range of commodities including precious metal, diamond, base metal and uranium deposits. Eric employs the use of advanced statistical methods that include spatial analysis to characterize and validate geochemical processes associated with background lithologies, alteration assemblages and key mineralization signatures. He has published extensively in peer-reviewed journals and has made many presentations at mineral industry conferences. Eric’s studies and consultancies have included the following commodities and deposit types: Lode gold, volcanic-hosted massive sulphides, porphyry, intrusion and sedimentary hosted uranium, IOCG Eric has carried out work in: Canada, Australia, USA, Ireland, Greenland, Argentina, Mexico, Indonesia, Middle East He has extensive experience in statistical and modelling software including: R Statistical Modelling Environment, Quantum GIS, ENVI, ERMapper, ArcGIS

Mahajan has over 30 years of proven experience across private and public sector organisations and geographies providing innovative solutions leveraging leading edge technologies and techniques. Most recently, Mahajan piloted the use of cognitive tools for gathering and analysing historical mining data, the application of machine learning, while transforming engineering tools to cloud technologies. Chairing the Geotechnical Information Life Cycle Management committee, Mahajan established new tools and data management techniques for project delivery as well as future application of machine learning capabilities. Throughout his career Mahajan has worked on projects to corral data from inconsistent data repositories to provide greater visibility for organizational strategies, resulting in new product and service offerings. Having worked with hardware and software implementations of neural networks, Mahajan is currently working with startups, platform providers, academia and AI communities to establish broader ethical application of emerging technologies.

Thomas Monecke is an economic geologist who specializes in the formation of base and precious metal deposits in modern and ancient volcanic arcs. He has more than 25 years experience in geological research and mineral exploration and has authored or co-authored approximately 80 journal papers, book chapters, government publications, and field guides during that period. Thomas graduated from the University of Freiberg, Germany, with a M.Sc. in 1996. He obtained his Ph.D. from the same university with his doctoral thesis focusing on the anatomy of a volcanic-hosted massive sulfide deposit in northern Australia. Between 2002 and 2008, Thomas conducted post-doctoral research at the Institute of Marine Sciences in Kiel, Germany, the University of Ottawa, and the Geological Survey of Canada on modern and ancient gold-rich volcanic-hydrothermal systems. In 2006, Thomas received the Waldemar Lindgren Award of the Society of Economic Geologists. He joined the Colorado School of Mines in 2008 where he currently teaches economic geology. Thomas runs a large research group and supervises graduate student working on a diverse range of hydrothermal ore deposits around the world.