L. Graham Cross

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Contact Information

• L. Graham Closs, Associate Professor
• Department of Geology and Geological Engineering
• Colorado School of Mines
• Golden, CO 80401
• USA
• Phone: (303) 273-3856 Fax: (303) 273-3859
• email: lcloss@mines.edu

Education

• A.B. (Geology): Colgate University, 1967
• M.S. (Geology): University of Vermont, 1970
• PhD (Geological Sciences): Queen's University (Canada), 1973

Research Interests
Courses
Publications
Professional Societies

Research Interests

• Exploration geochemistry
• Economic geology
• Geological data analysis applied to problems in mineral resource exploration and development

Courses

Undergraduate

• GEGN 403: Mineral Exploration Design
• GECN 405: Mineral Deposits (Non Majors)

Graduate

• GEGN 518: Mineral Exploration
• GEGN 528: Mining Geology
• GEGN 532: Geological Data Analysis
• GXGN 571: Geochemical Exploration
• GEGX 633: Lithogeochemical Mineral Exploration
• GEGX 635: Surficial Exploration Geochemistry
• GEOL 643: Precambrian Geology & Mineral Deposits (with R. W. Hutchinson)

Selected Publications

• Menendez, F. A. and Closs, L. G., 1998. Geochemical Exploration for Gold in the Choco 6 Concession, Bolivar State, Venezuela (Abst.). SME Annual Mtg. (Orlando). Program and Abstracts Volume: Oral Presentation.
  
  
• Closs, L. G., 1997. Exploration Geochemistry: Expanding contributions to mineral resource development (Keynote Presentation). in Gubins, A. G. (Ed.), Proceedings of Exploration 97: Fourth Decennial International Conference on Mineral Exploration. PDAC: 3-8
  
  
• Garcia, A. E. and Closs, L. G., 1995. Exploration of Au-bearing mafic rocks, Tomi gold deposit, Guasipati greenstone belt, Estado Bolivar, Venezuela. IX Congreso Lationo Americano de Geologic. Nov. 5-8, 1995. Caracus, Venezuela. Proceedings Papers available on computer disk from Organizing Committee.
  
  
• Glanzman, R. K. and Closs, L. G., 1993a. Multimedia exploration geochemistry using field portable x-ray fluorescence. in Integrated Methods in Exploration and Discovery Conference (Denver), Extended Abstracts: 38-39.
   
  
• Glanzman, R. K. and Closs, L. G., 1993b. Quality assurance and control guidelines for exploration and environmental geochemistry investigations. Explore 78: 1,6.
  
  
• Herrera, P. A., Closs, L. G. and Silberman, M. L., 1993. Alteration and geochemical zoning in Bodie Bluff, Bodie mining district, eastern California. J. Geochem. Explor. 48:259-275.
  
  
• Closs, L. G. and Nichol, I., 1989. Design and planning of geochemical programs. in Garland, G. D. (Ed.). Proceedings of Exploration 87. Ontario Geol. Surv. Spec. V. 3: 569-583.
  
  
• Nichol, I., Closs, L. G. and Lavin, O. P., 1989. Sample representativity with reference to gold exploration. in Garland, G. D. (Ed.). Proceedings of Exploration 87. Ontario Geol. Surv. Spec. V. 3:609-624.
  

Professional Societies

• Association of Exploration Geochemists (AEG)
• Society of Economic Geologists (SEG)
• Denver Region Exploration Geologists Society (DREGS)
• American Institute of Professional Geologists (AIPG)
• Geological Association of Canada (GAC)