List of Publications & Key Technical Presentations

* Copies of these publications can be found on ResearchGate. Please contact us if you have any questions or would like to obtain a copy of any of these articles.

Scheffel, R.E., A. Guzman, and J.E. Dreier. Development of metallurgy guidelines for copper heap leach. Special Issue on Process Development Testing. Minerals & Metallurgical Processing, 2016, Vol. 33, No. 4, pp. 187-199. The Society for Mining, Metallurgy & Exploration Inc.

Guzman-Guzman, A. Solution Mining; To Know or not to know? Plenary presentation on Heap Leach Solutions, 2015. Reno, Nevada. September 14-16, 2015.

Guzman-Guzman, A. Hydrology of Copper Leaching. 2016 SME Short Course. Society for Mining, Metallurgy & Exploration 2016 Annual Conference and Expo. February 21-24, Phoenix, Arizona.

Guzman-Guzman, A, O. Y.Caceres-Hernandes, R.Srivastava, J.W.Jones, Integrated process control to enhance heap leach performance. Proceedings of Heap Leach Solutions, 2014. November 10-13, 2014, Lima, Peru. InfoMine, ISBN: 978-0-9917905-6-2.

Guzman-Guzman, A, S.Robertson and B.Calienes. Constitutive Relationships for the Representation of a Heap Leach Process. Heap Leach Conference, Vancouver, CA. September 2013.

Robertson,S., A. Guzman-Guzman, and G. Miller. Implications of Hydrodynamic Testing for Heap Leach Design. Hydroprocess 2013. Santiago, Chile. July 10-12, 2013.

Guzman-Guzman, A. Fundamentals of Heap Leaching - Short Course imparted as part of “Percolation Leaching - The Status Globally Conference” in South Africa. Muldersdrift, South Africa. November 2011.

Guzman-Guzman, A. Application of Hydrodynamics to a Heap Leach Process. Hydrology and Water Resources Seminar Series. The University of Arizona, Tucson. December 2010.

Robertson, S., A.Seyedbaghaeri, P. van Staden and A. Guzman-Guzman. Advances in Heap Leach Research and Development. Nickel, Cobalt, Copper, Uranium and Gold Conference. Perth, Australia. May 2010.

Guzman-Guzman, A., R.Romero, L. Schlink, S. Flaherty and D.Shade. Secondary Copper Recovery in a Heap Leach Operation. SME Annual Conference. Salt Lake City, Utah. February 2008.

Guzman-Guzman, A., R.E. Scheffel and S. Flaherty 2008. The fundamentals of physical characterization of ore for leach. Sixth International Symposium on Hydrometallurgy, Edited by Y. A. Courtney et al., SME, Phoenix, AZ. August 2008.

Guzman-Guzman, A., S. Rhodes, R. Mongrain, S.M. Flaherty, K. Brantingham, J. Zhu, T.C. J. Yeh, Subsurface Imaging of an In situ Reactive Zone. AEG 2007 Challenges in Site Remediation – Advance Geotehcnical methods. Niagara Falls, NY. September 2007.

Guzman-Guzman, A.,R.Scheffel, G. Ahlborn, S.Ramos, S.Flaherty. Geochemical Profiling of a Sulfide Leaching Operation – The Rest of the Story. Cu2007 the 6th Copper/Cobre Conference, Toronto. CA. August 2007.

Guzman-Guzman, A. and K.W. Smith. 2007. Equatorial Tonopah – Facility Closure. SME Annual Meeting, Denver, CO. February 2007.

Guzman-Guzman, A., R.E. Scheffel and S. Flaherty 2006. Geochemical Profiling of a sulfide leaching operation: A case study. SME 2006 Spring Meeting. St. Louis, Mo. March 2006.

Guzman-Guzman, A. 2006. Multi-well hydraulic and tracer testing in weathered and unweathered Tonolite, San Diego County, Ca. Groundwater Resources Association of California. San Diego, CA. September 2006.

T.C. J. Yeh, J. Zhu, A. Englert, A. Guzman-Guzman, and S. Flaherty 2006. A Successive Linear Estimator for Electrical Resistivity In: Vereecken H., Binley A., Cassiani G., Revil A., Titov K. (eds) Applied Hydrogeophysics. NATO Science Series, vol 71. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-4912-5_3.

Guzman-Guzman, A. and C. Green et al. 2004. Solution Inventory a Hydrodynamic Perspective, SME Spring Meeting, February, 2004 Phoenix, Arizona, USA.

W. Illman, Guzman-Guzman, A. et al. 2003. Definitive Field Evidence of Permeability Scale Effect, IS-OKAYAMA 2003 International Symposium Groundwater Problems related to Geo-Environment, May 28-30, 2003 Japan.

Guzman-Guzman, A. and C. Filippone, et al. 2002. Hydraulic Parameter Estimation from Metallurgical Column Test Data, SME Spring meeting 2002, February, Phoenix, Arizona, USA.

Neuman, S.P., Illman, W.A., Vesselinov, V.V., Thompson, D.L. Chen, G. and Amado Guzman 2001. Lessons from Field Studies at the Apache Leap Research Site in Arizona. National Research Council. Conceptual Models of Flow and Transport in the Fractured Vadose Zone . Washington, DC: The National Academies Press, 2001.

Guzman-Guzman, A. and J. Chahbandour, et al. 2000. Hydrodynamic Characterization and Optimization of the Chuquicamata Ripios Mina Sur Aglomerados Heap Leach Project – Part 1, Cu Hydromet 2000, September 5-8, Tucson, Arizona, USA.

Guzman-Guzman, A. and C. Filippone, et al. 2000. Hydrodynamic Characterization and Optimization of the Chuquicamata Ripios Mina Sur Aglomerados Heap Leach Project – Part 2, Cu Hydromet 2000, September 5-8, Tucson, Arizona, USA.

Guzman-Guzman, A. and J. Rowe, et al. 1999. Pit lake evaluation - A risk evaluation approach. Workshop on the Characterization, Modeling, Remediation, and Monitoring of Mining-Impacted Pit Lakes, U.S. Environmental Protection Agency, USA.

Guzman-Guzman, A. and R. Srivastava, et al. 1999. Dynamics of solution flow through heap leach pads. Workshop on Closure, Remediation, & Management of Precious Metals Heap Leach Facilities. University of Nevada, Reno, USA.

R. Srivastava and Guzman-Guzman, A 1998. Practical Approximations of the Well Function. Ground Water, 36(5) 1-5.

Guzman-Guzman, A., R. Srivastava, and G. Beale 1998. A new method for estimating the hydraulic behavior of spent ore heaps, waste dumps, and tailing impoundments in proceedings of the Fifth International Conference on Tailings and Mine Waste '98, pp 263-271. Fort Collins, Colorado, USA, 26-28 January 1998.

Guzman-Guzman, A. and A.M. Geddis, et al. 1996. Rapid estimate of solid volume in large tuff cores using a gas pycnometer. Division of Regulatory Applications, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, Washington D.C., 1996.

Guzman-Guzman, A. and A. M. Geddis, et al. 1996. Summary of Air Permeability Data from Single-Hole Injection Tests in Unsaturated Fractured Tuffs at the Apache Leap Research Site: Results of Steady-State Test Interpretation. NUREG/CR-6360. U.S. Nuclear Regulatory Commission, Washington D.C.

Guzman-Guzman, A. and T.-C.J. Yeh. 1995. Tensiometry. Handbook of Vadose Zone Characterization & Monitoring, L.G. Wilson, Everett, L.G., and Cullen, S.J., eds (Florida, CRC Press, Inc., 1995), 319-328.

T.-C.J. Yeh, A. Guzman, R. Srivastava, P.E. Gagnard, and J. Kramer, 1995. Simulation of the Wicking Effect in a Two-layer Soil Liner System. Waste Management and Research, 13(4), 363-378.

R. Srivastava and Guzman-Guzman, A. 1995. Reply to “Discussion of Analysis of Slope-matching Methods for Aquifer Parameter Determination.” Ground Water, 33(3), 506-507.

R. Srivastava and Guzman-Guzman, A. 1995. Analysis of Hydraulic Conductivity Averaging Schemes for One-dimensional Steady State Unsaturated Flow. Ground Water, 33(6), 946-952.

Guzman-Guzman, A. and S.P. Neuman. 1994. Air Permeability Tests: Major Findings and Statistical Analysis in Apache Leap Tuff INTRAVAL Experiments: Results and Lessons Learned. Rassmusen et al., NUREG/CR-6096, 1645. U.S. Nuclear Regulatory Commission, Washington D.C.

Guzman-Guzman, A. and S.P. Neuman, et al. 1994. Chapter 4 in Validation Studies for Assessing Flow and Transport through Unsaturated Fractured Rocks. Edited by R.L. Bassett, S.P. Neuman, T.C. Rasmussen, A. Guzman, G.R. Davidson, and C.F. Lohrstorfer, NUREG/CR-6203. U.S. Nuclear Regulatory Commission, Washington D.C.

Guzman-Guzman, A. and S.P. Neuman. 1994. Air Permeability of Partially Saturated Fractured Tuff in Studies for Assessing Unsaturated Flow and Transport Through Unsaturated Fractured Rocks. L.R. Bassett, et al., NUREG/CR-6203, 204. U.S. Nuclear Regulatory Commission, Washington D.C.

R. Srivastava and Guzman-Guzman, A. 1994. Analysis of Slope-Matching Methods for Aquifer Parameter Determination. Ground Water 32 (4) 570-575.

T.-C.J. Yeh, Guzman-Guzman, A. R. Srivastava, and P.E. Gagnard ,1994. Numerical Simulation of the Wicking Effect in Linear Systems. Ground Water 32 (1), 2-11.

T.-C.J. Yeh, R. R. Srivastava, A. Guzman, and T. Harter, 1993. A Numerical Model for Water Flow and Chemical Transport in Variably Saturated Porous Media. Ground Water 31 (4), 634-644.

T.-C.J. Yeh, Guzman-Guzman, A. et al. 1993. Analysis of Uncertainty in Prediction of Seepage from Waste Disposal Basins. Technical Report, United States Environmental Protection Agency.

Guzman-Guzman, A. and L.G. Wilson, et al. 1989. Simulating Effect of Channel Changes on Stream Infiltration. ASCE, Hydraulic Division 115 (12).

E.J. Usunoff and Guzman-Guzman, A. 1989. Multivariate Analysis in Hydrogeochemistry: An Example of the Use of Factor and Correspondence Analyses in Groundwater. Ground Water, 27 (1).

Guzman-Guzman, A. and S.P. Neuman. 1989. Modified Version of the Finite Element Program UNSAT2 (Davies and Neuman, 1983) for the Personal Computers. Sold by the University of Arizona, Department of Hydrology and Water Resources, Tucson, Arizona.

Guzman-Guzman, A. and L.G. Wilson, et al. Effect of stream modifications in the Tucson Basin on recharge. In proceedings of U. of A. / U.S. – Israel Binational Science Foundation Workshop. Groundwater recharge processes in the arid environment. 23-27 Feb. 1987. University of Arizona, Tucson, Arizona.