MBMG Staff

Contact information:


Richard B. Berg
Senior Research Geologist, Emeritus


Professional Experience

19662012, Senior Research Geologist and Curator of Mineral Museum
        Montana Bureau of Mines and Geology, Butte

19871989, Faculty, State University College, Plattsburgh, New York

Education

Ph.D.Geology, University of Montana, Missoula

B.S.Geology, Beloit College, Beloit, Wisconsin

Professional Interests

Research on Montana sapphires

Geology of industrial mineral deposits

Montana field geology

Mineralogy

 


Outside Publications/Presentations

Berg, R. B., 1968, Petrology of anorthosites of the Bitterroot Range, p. 387-398, in Isachsen, Y. W., Ed., The origin of anorthosite and related rocks:  New York State Museum and Science Service Memoir 18, 466 p.

Berg, R .B.,1969, Mineralogy and physical properties of some Montana bentonites, p. 227-232, in Cronoble, W. R., and Lane, B. B.,ed., The economic geology of eastern Montana and adjacent areas:  Montana Geological Society, 256 p.

Berg, R. B., 1973, Geology of southernmost Ravalli County:  Northwest Geology, v. 2, p. 1-5.

Weidman, R. M., Alt, D. D., Berg, R. B., Johns, W. M., Flood, R. E., Jr., Hawley, K. T., and Wackwitz, L. K., 1973, Applicability of ERTS-1 to lineament and photogeologic mapping in Montana-Preliminary report; p. 539-546, in Freden, S. C., and others, eds., Symposium on significant results obtained from the Earth Resources Technology Satellite-1, v. 1. Technical Presentations Section A NASA SP-327, NASA, Washington, D.C.

Berg, R .B., 1980, Talc deposits of Montana:  Northwest Mining Association reprint of paper presented at 86th Annual Meeting, December, 1980, Spokane, Washington, 11 p.

Berg, R. B., 1983, New chlorite mine in an old Montana gold district:  Mining Engineering, v. 35,  no. 4, p. 347-350.

Berg, R. B., 1986, Clinochlore from the Silver Star district, Madison County, Montana:  Clays and Clay Minerals, v. 34, p. 496-498.

Tysdal, R. G., Lee, G. K., Hassemer, J. H., and Hanna, W. F. (U.S.  Geological Survey, Schmauch, S. W., (U.S. Bureau of Mines) with a section on talc by Berg, R. B. (Montana Bureau of Mines and Geology), 1987, Mineral resources of the Ruby Mountains Wilderness Study Area, Madison County, Montana:  U.S. Geological Survey Bull. 1724-B, 21 p

Berg, R. B., 1987, Geology of Montana: in Proceedings Volume of the 37th Annual Highway Geology Symposium held August 20-23, 1986, Helena, Montana, p. 2-10.

Berg, R.B., 1990, Montana's Industrial Minerals, in Geitgey, R. P., and Vogt, B. F., eds.,  Industrial rocks and minerals of the Pacific Northwest:  Special Paper 23, Oregon Department of Geology and Mineral Industries, p. 37-44.

Berg, R. B., 1991, Geology of talc and chlorite deposits in Montana:  in Industrial minerals of Alberta and British Columbia, Canada, in  Proceedings of the 27th Forum on the Geology of Industrial Minerals, Z. D. Hora, W. N. Hamilton, B. Grant, and P. D. Kelly eds., British Columbia Geological Survey Branch open-file report 1991-23, p. 81-92 (Published simultaneously by the Alberta Geological Survey of the Alberta Research Council as Information Series 115).

Berg, R. B., 1993, Precambrian chlorite deposits, southern flank of the Highland Mountains, Madison and Silver Bow Counties, Montana:  Eighteenth Annual Field Conference of the Tobacco Root Geological Society, John F. Childs and David R. Lageson, eds., Northwest Geology, v. 22, p. 25-28.

Berg, R. B. and Masters, J. M., 1994, Geology of microcrystalline silica (tripoli) deposits in southernmost Illinois:  Illinois State Geological Survey Circular 555, 89 p.

Berg, R. B., and Steuart, C. T., 1994, Tripoli, in Industrial Minerals and Rocks: Donald D. Carr, Senior Editor, Society for Mining, Metallurgy, and Exploration, Inc., Littleton, CO, p. 1091-1102.

Berg, R. B., and Masters, J. M., 1995, Microcrystalline silica (tripoli) deposits in southernmost Illinois: in Simard, C.M., compiler and Walker, B.J., Ed., Proceedings 28th forum on the Geology of Industrial Minerals: West Virginia Geological and Economic Survey Circular c-46, p. 43-49.

Berg, R. B., 1995, Geology of western U.S. talc deposits: in Tabilio, M. and Dupras, D.K., eds., 29th Forum on the Geology of Industrial minerals, Proceedings.  California Department of Conservation, Division of Mines and Geology Special Publication 110, p. 69-79.

Robbins, R. G., Berg, R. B., Dysinger, D. K., Duaime, T. E., Metesh, J. J., Diebold, F. E., Twidwell, L. G., Mitman, G. G., Chatham, W. H., Huang, H. H., and Young, C. A., 1997, Chemical, physical and biological interaction at the Berkeley Pit, Butte, Montana, Tailings and Mine Waste ‘97 (Proceedings of the fourth International Conference on Tailings and Mine Waste ‘97) p. 529 - 541, Brookfield, VT: A. A. Balkema.

Berg, R. B., 1997, Montana’s changing industrial minerals industry: in Harris, R.E., and Jones, R.W., eds., Proceedings of the 32nd Annual Forum on the Geology of Industrial Minerals, Wyoming Geological Survey Public Information Circular 38, p. 167-175.

Berg, R.B., 1999, Montana Talc: the gem of the Treasure State: North American Minerals News, No. 53, p. 11-12.

Berg, R.B., and Crouse, D.L., 2001, The Antler chlorite mine, southwestern Montana, rediscovery, geology, and closure in Bon, R.L., Riordan, R.F., Tripp, B.T. and Krukowski, S.T., eds., Proceedings of the 35th Forum on the Geology of Industrial Minerals  - The Intermountain West Forum 1999. Geology of Industrial Minerals, Misc. Publication 01-2, Utah Geological Survey, p. 23-31.

Berg, R.B., and Dahy, J.P., 2002, Montana sapphires and speculation on their origin: Scott, P.W., and Bristow, C.M., eds., Industrial Minerals and Extractive Geology, Geological Society, London, p. 201-206

Berg, R.B., 2002, Montana sapphire deposits: Gemstone deposits of Colorado and the Rocky Mountain region, September 7-10, 2002, Golden, Colorado: Program and Abstracts, p. 18-22.

Twidwell, L.G., Young, C.A., and Berg, R.B., 2004, Deepwater sediment/pore water characterization from an acidic metal-laden pitlake: Paper presented at the 1st International Conference, Advances in Mineral Resources Management and Environmental Geotechnology, 7 - 9 June, 2004, Chania, Crete, Greece).

Berg, R.B., 2004, Probable bedrock source of sapphires in alluvial deposits north of Butte, Montana, in Castor, S.B., Papke, K.G., and Meeuwig, R.O., eds., Betting on Industrial Minerals, Proceedings of the 39th Forum on the Geology of Industrial Minerals, May 19-21, 2003, Sparks, Nevada: Nevada Bureau of Mines and Geology Special Publication 33, p. 23-30.

Berger, A.L., and Berg, R.B., 2006, The Silver Bow sapphire occurrence, Montana: Evidence for a volcanic bedrock source for Montana’s alluvial sapphire deposits: Economic Geology, v. 101, p. 679-684.

Twidwell, L.G., Gammons, C.H., Young, C.A., and Berg, R.B., 2006, Summary of deepwater sediment/pore water characterization for the metal-laden Berkeley Pit Lake, Butte, Montana: Mine Water and the Environment, v. 25, no. 2, p. 86-92.

Cerino, M.T., Childs, J.F., and Berg, R.B., 2007, Talc in southwestern Montana: Northwest Geology, v. 36, p. 9-22.
Berg, R.B., and McCulloch, R., May 2007, Montana’s industrial minerals: in the Proceedings of the Colorado Geological Survey Resource Series 46, p. 157-180.

Young, C.A., Filius, K., Streich, E.A., Berg, D., and Twidwell, L.G., 2008, ARD remediation b slag addition: Dual ecosystem enhancement: SME Topical Fall Meeting.

Berg, R.B., 2009, Montana sapphires-past, present, and future, Modified from preprint 09-029, SME annual meeting, February 22025, 2009, Denver, Colorado

Berg, R.B., 2009, Geology of the southwestern part of the Rock Creek sapphire district, Granite County, Montana: Northwest Geology , v. 38, p. 127-140 (field trip guide).

ABSTRACTS

Berg, R. B., 1964, Petrology of anorthosite bodies in the Bitterroot Range, western Montana [abs.]:  Program for the 1964 Annual Meeting, Rocky Mountain Section, Geological Society of America, p. 319.

Berg, R. B., 1977, Origin of talc deposits in the Greenhorn Range, Madison County, Montana [abs.]:  Geological Society of America Abstracts with Programs, v. 9, no. 6, 708-709.

Berg, R. B., 1979, Chlorite deposit in Precambrian quartzofeldspathic  gneiss, Silver Star, Montana [abs.]:  Geological Society of America Abstracts with Programs, v. 11, no. 6, p. 266.

Berg, R. B., 1982, A new chlorite mine in an old Montana gold district: Paper written for presentation February 15, 1982, at SME-AIME Annual Meeting, Dallas, Texas:  SME Preprint 82-14, p. 6.

Berg, R B., 1982, Barite deposits of the Elk Creek-Coloma area of the Garnet Range, Missoula County, Montana [abs.]:  Geological Society of America Abstracts with Programs, v. 14, no. 6, p. 302 (Rocky Mountain Section).

Berg, R B., 1988, An overview of Montana's talc industry, Northwest Mining Association 94th Annual Convention, Abstract booklet. p. 10.

Berg, R. B., and Krouse, H. R., 1988, Barite veins in rocks of the Belt Supergroup, western Montana [abs.]:  Geological Society of America Abstracts with Programs, v. 20, no. 6, p. 407.

Berg, R. B., 1989, Montana's industrial minerals [abs.]:  Program with abstracts for the 25th Forum on the Geology of Industrial Minerals, p. 9.

Vuke-Foster, S. M., Berg, R. B., Colton, R. B., and O'Brien, H. E., 1989, Geology of the Belt 30' X 60' quadrangle, central Montana [abs.]:  Geological Society of America Abstracts with Programs, v. 21, no. 5,   p. 154.

Berg, R. B., 1990, Formation of tripoli (microcrystalline silica) deposits in southern Illinois:[abs.]:  Geological Society of America Abstracts with Programs, v. 22, no. 5, p. 3.

Eidel, J. J., Berg, R. B., Masters, J. M., Rueff, A., and Stiff, B., 1992, Tripoli (microcrystalline silica) resources of the Paducah quadrangle [abs.]: in Goldhaber, M. B., and Eidel, J. J., eds., Mineral resources of the Illinois Basin in the context of basin evolution:  U.S. Geological Survey open-file report 92-1, p.8.

Nelson, W.J., Masters, J.M., and Berg, R.B., 1992, Tectonic control of hydrothermal tripoli deposits, southern Illinois:[abs.] Geological Society of America Abstracts with Programs, v. 24, no.7, p. 355.

Berg, R. B., 1994, Zeolitic alteration of tuffaceous sedimentary rocks of Tertiary age, southwestern Montana [abs.]: Geological Society of America Abstracts with Programs, v. 26, no. 6, p. 4.

Berg, R. B., 1995, Evidence for the direct precipitation of hydrothermal talc in southwestern Montana [abs.]: Geological Society of America, 1995 Abstracts with Programs, v. 27, No. 4, p. 4.

Brenner Younggren, E., Cox, B.E., and Berg, R. B., 1995, Almandine to zeolite-industrial minerals in southwestern Montana [abs.]: Geological Society of America, 1995 Abstracts with Programs, v. 27, no. 4, p. 4.

Madison, J. P., Duaime, T. E., Feldmann, J. C., and Berg, R. B., 1995, An overview of the characteristics, occurrences, and applications of natural zeolites [abs.]: Geological Society of America, 1995 Abstracts with Programs, v. 27, no. 4, p. 45.

Reiten, J. C., Wheaton, J., and Berg, R. B., 1996, Weathering of rock art at Pictograph Caves State Park near Billings, Montana. [abs.]: American Association of Petroleum Geologists Bulletin, v. 80, p. 980.

Twidwell, L.G., Young, C., and Berg, R., 1998, Characterization of deep Berkeley pitlake water and solids: [abs.]; 1998 Conference on Hazardous Waste Research, Snowbird, Utah, p. 1, 2.

Berg, R.B., and Crouse, D., 1999, The Antler Chlorite Mine, southwestern Montana - rediscovery, geology, and closure [abs.], Program for 35th Forum on the Geology of Industrial Minerals, Utah Geological Survey.

Deal, E.G., Wolfgram, D., and Berg, R.B., 1999, Reno Sales - Charles Meyer - Anaconda Memorial Collection:  A unique sample suite from a world-class mining district [abs.]: Geological Society of America, 1999 Abstracts with Programs, v. 31, no. 7.

Berg, R.B., 2000, Corundum megacrysts and corundum-bearing xenoliths in the French Bar “dike”, Lewis and Clark County, Montana [abs.]: Geological Society of America Abstracts with Programs, v. 32, no. 5, p. 2.

Berg, R.B., and Dahy, J.P., 2000, Montana Sapphires [abs]: 36th Forum on the Geology of Industrial Minerals and11th Extractive Industry Geology Conference, May 7 - 12, 2000, Bath, U.K.

Dahl, P.S., Hamilton, M.A., Stern, R.A., Frei, R., and Berg, R.B., 2000, In Situ SHRIMP investigation of an early Proterozoic metapelite, with implications for Pb-Pb step-leach dating of garnet and staurolite [abs.]: Geological Society Abstracts with Programs, v. 32, no. 7, p. A-297.

Berg, R.B., 2002, Probable sources of alluvial sapphires in western Montana [abs.]: Geological Society of America Abstracts with Programs, v. 34, no. 4, p. 55.

Berg, R.B., 2003, Alluvial sapphire deposits in southwestern Montana [abs.]: Program for the 39th Forum on Geology of Industrial Minerals,, May 18-24, 2003, p. 11, 12.

Young, C., Huang, H.-H., Berg, R.B., Twidwell, L.G., and Robins, R.G., 2004, Remediation of acidic pitlake water by silicate slag addition: An application to Berkely Pitlake water:[abs.] 2004 Pit Lakes Conference.

Berg, R.B., and Berger, A.L., 2005, Evidence for a metamorphic origin for sapphires in an alluvial deposit near Butte, Montana [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 6, p. 6.

Berg, R.B., and Cooney, C.F., 2006, The importance of surface features and adhering material in deciphering the geologic history of alluvial sapphires – An example from western Montana [abs.]: Gems and Gemology, v.42, no. 3, p. 145.

Berg, R.B., 2007, The geology of the Butte district (power point slides): in Program for Mine Design, Operations & Closure Conference, 2007, Fairmont Hot Springs, Montana, April, 2007, p. 1- 11.

Berg, R.B., and McCulloch, R., 2007, Montana’s industrial minerals [abs.]: Meeting Handbook, 43rd Forum on the Geology of Industrial Minerals, Boulder, Colorado, p. 12,13.

Berg, R.B., 2007, Yogo sapphires [abs.]: Proceedings for 24th Annual Meeting, American Water Resources Association – Montana Section, October 11-12,2007, Lewistown, Montana.

Berg, R.B., 2007, Montana sapphire deposits and the potential for new discoveries [abs.]: Final Program, Northwest Mining Association’s 113 Annual Meeting, Spokane, Washington, p. 26, 27.

Berg, R.B., 2008, Montana sapphires: [abs.]: in Program for Mine Design, Operations, and Closure Conference, 2008, Fairmont Hot Springs, Montana, April 22, 2008.

Berg, R.B., Gammons, C.H., and Arehart, G.B., 2008, Preliminary oxygen isotope values for Montana sapphires [abs.]: Geological Society of America Abstracts with Programs, v. 40, no. 6, p. 254.

Berg, R.B., 2011, Bedrock source of sapphires in alluvial deposits in Rock Creek sapphire district, western Montana [abs.]: Geological Society of America Abstracts with Programs, v. 43, no. 4, p. 9.

ROAD LOGS, FIELD GUIDES, and PROCEEDINGS VOLUME

Johns, W. M., Berg, R. B., and Dresser, H. W., 1981, Geologic road log, Three Forks to Twin Bridges, in Field Conference and Symposium Guidebook to Southwest Montana, Tucker, T. E., eds.,  Montana Geological Society. p. 288-392.

Berg, R. B., and Zeihen, L. G., 1985, Golden Sunlight mine - Butte Field trip, in Beaver,  P. C., eds., Guidebook of the 10th Annual Field Conference of the Tobacco Root Geological Society, p. 35-40.

Zeihen, L. G., Berg, R. B., and McClernan, H. G., 1987, Geology of the Butte mining district, Montana: in Geological Society of America Centennial Field Guide, v. 2, Beus, S. S., eds.:  Rocky Mountain Section of the Geological Society of America, p. 57-61.

Thomas, R. C., Sears, J. W., Rippley, A. A., and Berg, R. B., 1995, Tertiary extensional history of southwestern Montana: Field trip guide for the Sweetwater and Upper Ruby Valleys, Montana: in Northwest Geology, v. 25, R. C. Thomas, ed., p 5-25.

Lewis, S. E., Berg, R. B., Duaime, T. E., and Czehura, S. J., 1989,  Trip 8 Road Log,  Butte Mining district  -  Montana's history and legacy: Montana Geological Society Field Conference, p. 522-527.

COMPILATIONS, ETC.

Bartholomew, M. J., Lawson, D. C., and Berg, R. B., 1985, Montana - Exploration in 1984, Mining Engineering, May 1985, p. 407.

Bartholomew, M. J., Lawson, D. C., and Berg, R. B., 1987, Montana - Exploration 1986: Mining Engineering, v. 39, p. 336.

Lawson, D. C., Berg, R. B., and Sholes, M. A., 1987, Mining and Mineral developments in Montana - 1987: Montana Bureau of Mines and Geology open-file report MBMG 196, 16.R

Rice, W. L., Lawson, D. C., and Berg, R. B., 1988, The mineral industry of Montana, in Minerals Yearbook, 1986, Vol. II, Area Reports:  Domestic, p. 287-299.

McCulloch, R. B., and Berg, R. B., 1989, Montana in summary of state activities:  Mining Engineering, V. 41.
Rice, W. L., McCulloch, R. B., and Berg, R. B., 1989, The mineral industry of Montana, in Minerals Yearbook, 1988, Vol II, Area Reports:  Domestic.

Berg, R. B., 1991, Montana Chapter in Marcus, S. M. Vuke-Foster, Ed., Mineral Resource Information Sources in the Western United States; U.S.G.S. Circular 1063, p. 30-31.

OPEN-FILE REPORTS

Berg, R. B., 1987, Potential for talc deposits within the BLM Wilderness Study Area of the northern part of the Ruby Range, Madison County, Montana:  U.S. Geological Survey open-file report 87-001.

Van Gosen, B.S., Hammarstrom, J.M., Kellogg, K.S., and Berg, R.B., 1998, Map showing areas for garnet resources in bedrock and placer in the Blacktail Mountains, and the Gravelly, Greenhorn, Ruby and Snowcrest Ranges of southwestern Montana: U.S. Geological Survey open-file report 98-224-A, 1:250,000 scale map.

Van Gosen, B.S., Berg, R.B., and Hammarstrom, J.M., 1998, Map showing areas with potential for talc deposits in the Gravelly, Greenhorn, and Ruby Ranges and the Henry’s Lake Mountains of southwestern Montana: U.S. Geological Survey open-file report 98-224-B, 1:250,000 scale map.