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Department of Geosciences

Earth, Air, & Water

Sam Treves

Professor Emeritus

Ph.D., 1959, Michigan

Contact Information

433 Morrill Hall
402-472-0872
streves1unl.edu

With Ron Goble, I am working on some Proterozoic basalts and some Cretaceous alkaline syenites in Canada from an area just north of Glacier National Park. The Cretaceous rocks are very similar to the Rainy Ridge analcime phonolite and the volcanic rocks of the Crowsnest Formation. Our contention that the analcime of the Rainy Ridge phonolite is primary is still unchallenged.

Work with Marv Carlson of the Conservation and Survey Division on the basement rocks of Nebraska is ongoing and is focused on updating some of the Survey Bulletins and on some billion-plus year-old gabbros that are probably related to the Keweenawan rift basalts. The gabbros are intruded by carbonatite that we think is related to the Elk Creek carbonatite.

My appointment is 25% Geosciences and 25% Conservation and Survey. I teach optical and igneous and metamorphic petrology for the department and study the Nebraska basement rocks for the Survey. My association with the State Museum continues. An offer to the Survey of 80,000 feet of Elk Creek carbonatite core has us scrambling for space to store the core and for study funds.

Selected Publications

  • Goble, R.J., Treves, S.B. & Ghazi, A.M., 1999, Mineralogy and Geochemistry of Proterozoic Alkaline Basalts, S.W. Alberta, Canada, Canadian Mineralogist, 37, 163-175.
  • Carlson, M.P., Treves, S.B. and Goble ,R.J., 1999, New data and interpretations for the Precambrian, midcontinent USA, Basement Tectonics, 13, 49-63.
  • Goble, R.J., Treves, S.B. & Ghazi, A.M., 1993, Comparison of the Rainy Ridge analcime phonolite sill and the Crowsnest volcanics, Alberta, Canada, Can. J. Earth Sci., 30, 1644-1649.
  • Ghazi, A.M., Goble, R.J. & Treves, S.B., 1991, Geochemical K/Ar Data for the Commerce Mountain Copper/Gold Prospect, Southeastern British Colombia, Canada, Proceedings of the Third Mining Symposioum, Teheran, Iran, p. 397-413.
  • Mason, R.A., Smith, J. V., Dawson, J.B. & Treves, S.B., A Reconnaissance of Trace Elements in Anorthoclase Megacrysts, Mineralogical Magazine, 46, 7-12.