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Charles R. Stern


Professor of Geological Sciences
Ph.D., 1973, University of Chicago
Email: Charles.Stern@Colorado.EDU
Phone: 303.492.7170

Research Interests

The broad relations between the formation of magmas and tectonics, implications of the chemistry of igneous rocks for their genesis, the role of volcanic activity in the evolution of the Earth and other planets, volcanic hazard evaluation, the formation of economic ore deposits associated with igneous activity, and the analysis of volcanic materials in archaeological sites.



Recent Publications (last 5 years)

  • Stern, CR, PI Moreno, WI Henríquez, R Villa-Martínez, E Sagredo & JC Aravena (2015). Tephrochronology of the area around Cochrane, southern Chile. Andean Geology, submitted and under review

  • Campbell, R. and CR Stern (2015) Obsidian from Isla Mocha, Chile. Magellania, in prep

  • Navarro, H., M Pino and CR Stern (2015). The procurement and use of aphanitic and glassy volcanic raw material in the late Pleistocene Pilauco site, Chilean Intermediate Depression of Northwest Patagonia. Journal of Archaeological Sciences, submitted and under review

  • Morello, F. CR Stern and M San Ramon (2015). Obsidiana verde en Tierra del Fuego y Patagonia: caracterización, distribución y problemáticas culturales a lo largo del Holoceno. Intersecciones in Arqueologia, in press

  • Martin, F., Todisco, D., Rodet, J., San Ramon, M., Morello, F., Prevosti, F., Stern, CR, Borrero, L. (2015). Excavation of Cueve del Medio, Chilean Patagonia: implications for megafauna extinction and human occupation. Magallania, v. 43(1), p. 165-189.download

  • Stern, CR, ME de Porras, A Maldonado (2015) Tephropchronology of the upper Cisnes river valley, Aisen, southern Chile, Andean Geology, v. 42(2), p. 173-192.download

  • García, JL., Strelin, JA., Vega, RM, Hall, BL, Stern, CR (2015). Stratigraphy and sedimentology of late-glacial ice-dammed lakes and subaqueous moraines in the Torres del Paine National Park, Chilean Patagonia. Andean Geology, v. 42(2), p. 193-212.download

  • BARBERENA, R., K. BORRAZZO, M.P. POMPEI, A.A. RUGHINI, C. LLANO, M. CHIDIAK, G. ROMERO, M.E. DE PORRAS, V. DURÁN, D. ESTRELLA, C.R. STERN, A. RE, A. FORASIEPI, F. J. FERNÁNDEZ, L. ACUÑA, A. GASCO y M.N. QUIROGA (2015). PERSPECTIVAS ARQUEOLÓGICAS PARA PATAGONIA SEPTENTRIONAL: SITIO CUEVA HUENUL (PROVINCIA DEL NEUQUÉN, ARGENTINA). Magellania, v. 43(1), p. 1-27.download

  • ALLAZ, J., PERSSON, P.M., and RASCHKE, MB, STERN, C.R., (2015). Proterozoic fluorbritholite- bearing REE-rich hydrothermal pods and veins from near Jamestown, CO. American Mineralogist, v. 100, p.download

  • Bagherzadeh, R.M., M.H. Karimpour, G.L. Farmer, C.R. Stern, J.F. Santos, B. Rahimi M.R. Heidarian Shahri (2015). U–Pb zircon geochronology, petrochemical and Sr–Nd isotopic characteristic of Late Neoproterozoic granitoid of the Bornaward Complex (Bardaskan-NE Iran). Journal of Asian Earth Sciences, v. 111, p. 54-71.download

  • Nakhaei, M, Mazaheri, SA, Karimpour, MH, Farmer, GL, Stern, CR, Zarrinkoub, MH, Shahri, MRH (2015) Petrogenesis and zircon U-Pb dating of skarnified pyroxene-bearing dioritic rocks in Bisheh area, south of Birjand, eastern Iran. Iranian Journal of Economic Geology, v. 6, p. 1-25.

  • Fernandez, V., CR Stern, Leal, P. (2015) Obsidian from northwestern Santa Cruz province, Argentina. Quaternary International, v. 375, p. 44-54.download

  • Reyes, M, E Moreno and CR Stern, (2015) OBSIDIAN USE AMONG HUNTER-GATHERERS IN THE OF MUSTERS LAKE BASIN (CHUBUT, ARGENTINA): AN APPROACH FROM TECHNO-MORPHOLOGICAL AND GEOCHEMICAL ANALYSIS. Intersections in Anthropology, in press

  • Malekzadeh Shafaroudi, M.A., Karimpour, M.H., and Stern, C.R. (2015). The Khopik porphyry copper prospect, Lut Block, Eastern Iran: Geology, alteration and mineralization, fluid inclusion, and oxygen isotope studies, Ore Geol. Rev., v. 65, p. 522-544.download

  • Weller, D., CG Miranda, PI Moreno. R Villa-Martínez, CR Stern, (2014). A very large (>20 km3) late-glacial eruption (Ho) of the Hudson volcano, southern Chile, Bulletin of Volcanology, v. 76, p. 831-849.download

  • Saadat, S, and CR Stern (2014). Petrochemistry of ultrapotassic tephrites and associated cognate plutonic xenoliths from late Quaternary Qa’le Hasan Ali maars, central Iran. Journal of Asian Earth Sciences, v. 89, p. 108-122.download

  • Prieto, A., CR Stern, and J. Esterves (2013). THE PEOPLING OF THE FUEGO-PATAGONIAN FJORDS BY LITTORAL HUNTER-GATHERERS AFTER THE MID-HOLOCENE H1 ERUPTION OF HUDSON VOLCANO. Quaternary International, v. 317, p. 3-13download

  • Salazar, G and CR Stern (2013). Sources of obsidian from the Lago Alumine area, Nuequen, Argentina, Magallania, v. 41(1), p. 275-284.download

  • Alaminia, Z, MH Karimpour, SM Homam, F Finger, GL Farmer, CR Stern (2013). Petrology, geochemistry and mineralization of Tertiary volcanic rocks associated with subvolcanic intrusive bodies, with special reference to age dating and origin of granites from Arghash – Ghasem-Abad area, NE Iran. Iranian Journal of Economic Geology, v. 5, p. 1-22.

  • Pérez,A.E, LG López y CR Stern (2013). Descripción y caracterización química de distintas fuentes y tipos de obsidiana en la cordillera de los Andes sudoeste del Neuquen, norpatagonia Argentian. Actas del XVIII Congreso Nacional de Arqueología Chilena, p. 459-470.

  • Stern, CR, C Perez Micou, A Castro and C Mendez (2013) Circulation of obsidian in Patagonia Central-Sur (44 y 46°S; Chubut, Argentina, y Aisén, Chile). In: Tendencias teórico-metodológicas y casos de estudio en la arqueología de la Patagonia: AF Zangrando, R Barberena (Ediotors), Altuna Impresiones, p. 243-250.

  • Stern, CR, and A Aguerre (2013). Sources of obsidian from archaeological sites in La Pampa Argentina. Intersections in Anthropology, v. 14, p. 5-11.download

  • Noghondarm, M., Karimpour, M.H., Farmer, G.L., Stern, C.R. (2012). Sr-Nd isotopic characteristic, U-Pb zircon geochronology, and petrogenesis of Najmabad Granodiorite batholith, Eastern Iran. Iranian Journal of Economic Geology, v. 3, p. 127-145.

  • Karimpour M. H., Stern C.R, Farmer L., Saadat S., and Malekezadeh A. (2012). Review of age, Rb-Sr geochemistry and petrogenesis of Jurassic to Quaternary igneous rocks in Lut Block, Eastern Iran. Geoscope, v. 1, p. 19-36.

  • Mendez, CA, CR Stern, OR Reyes and F Mena (2012) Early Holocene Long-distance Obsidian Transport in Central-south Patagonia. Chungara, v. 44, 363-375.download

  • Castro, A, C Perez de Micou and CR Stern (2012). Circulation of obsidian in Chubut, Argentina using primary lithic materials as indicators of mobility and interaction of hunter-gatherer groups. Revista del Museo de Arqueología y Etnología de la Universidad de San Pablo Brazil, v. 21, p. 93-102.

  • Stern, CR, I Cruz, S Caracotche and J Charlin (2012). Grey porphyritic obsidian from Chaiten volcano found south of the Santa Crus River in southernmost Patagonia. Magallania, v. 40, p. 135-142.download

  • de Porras, ME, A Maldonado, AM Abarzúa, CR Stern and JP Francois (2012) Postglacial vegetation, fire and climate dynamics 1 from Lake Shaman at mid-latitude Patagonia(44S), Chile. Quaternary Science Reviews, v. 50, p. 71-85.

  • Stern, CR, I Pereda and A Aguerre (2012). Primary and secondary sources of a visually variable but chemically distinct obsidian from west-central Nuequen. Archeometry, v. 54, p. 442-453.download

  • Karimpour, M.H., G.L. Farmer and C.R. Stern (2012). Rb–Sr and Sm–Nd isotopic compositions, U-Pb Age and Petrogenesis of Khajeh Mourad Paleo-Tethys Leucogranite, Mashhad, Iran. Iranian Geosciences, v. 20, p. 151-167.

  • Morello, F., Borrero, L., Massone, M., Stern, C.R., García-Herbst, A., Arroyo-Kalin, M. and six others (2012). TIERRA DEL FUEGO PEOPLING DURING THE HOLOCENE: DISCUSSING COLONIZATION, BIOGEOGRAPHIC BARRIERS AND INTERACTIONS IN SOUTHERNMOST PATAGONIA, CHILE. Latin American Antiquity, v.86, p 71-87.download

  • Saadat, S, and CR Stern (2012). Genesis of a small monogenetic alkali basalt cone with mantle and lower crustal xenoliths in northeastern Iran. Journal of Volcanology and Geothermal Research, v. 225, p. 13-29.download

  • Karimpour, M.H., and, C.R. Stern (2011). Mineralogical and Chemical Composition of Tourmaline from Najmabad, Gheshlagh,Hired and Maherabad-Khopik, and their relationship with types of mineralization, Eastern Iran. Iranian Journal of Crystallography and Mineralogy, v. 18, p. 43-54.

  • Saadat, S., and C.R. Stern (2011). Petrochemistry and genesis of olivine basalts from small monogenetic parasitic cones of Bazman stratovolcano, Makran arc, southeastern Iran. Lithos, v. 125, p. 609-617.

  • Stern, C.R. (2011). Subduction erosion: rates, mechanisms, and its role in arc magmatism and the evolution of the continental crust and mantle. Gondwana Research, v. 20, p. 284-308.download

  • Karimpour, M.H., G. Lang Farmer, C.R. Stern, E. Salati (2011). U‐Pb zircon geochronology and Sr‐Nd isotopic characteristic of late Neoproterozoic Bornaward granitoids (Taknar zone exotic block), Iran. Iranian Journal of Crystallography and Mineralogy, v.19, p. 1-18.

  • Karimpour, M.H., C.R. Stern, and M. Mouradi (2011). Chemical composition of biotite as a guide to petrogenesis of granitic rocks from Maherabad, Dehnow, Gheshlagh, Khajehmourad and Najmabad, Iran. Iranian Journal of Crystallography and Mineralogy, v. 18, p. 89-100.

  • Karimpour, MH, CR Stern, L Farmer, S Saadat and A Malekezadeh (2011). Review of Age, Rb-Sr Geochemistry and Petrogenesis of Jurassic to Quaternary Igneous rocks in the Lut Block, Eastern Iran. Journal of Geopersia, v. 1, p. 19-36.

  • Stern, CR, R Floody, D Espiniera (2011). Ol-hbl-lamprophyre dikes from Quebrada de los Sapos, El Teniente, Central Chile (34°S): Implications for the subarc mantle. Andean Geology, v. 38, p 1-22.download

  • Stern, CR., PI Moreno, R Villa-Martinez, EA Sagredo, A Prieto and R Labarca (2011). The late-glacial R1 eruption of Reclus volcano, Andean Austral Volcanic Zone: implications for evolution of ice-dammed proglacial lakes in Ultima Esperanza, Chile. Andean Geology, v. 38, p. 82-97.download

  • Sagredo, E.A., Moreno, P.I., Villa-Martínez, R, Kaplan M.R, Kubik, P.W., and Stern, C.R. (2011). FLUCTUATIONS OF THE ÚLTIMA ESPERANZA ICE LOBE (52°S), CHILEAN PATAGONIA, DURING THE LAST GLACIAL MAXIMUM AND TERMINATION. Geomorphology, v. 125, p. 92-108.

  • Stern, CR, MA. Skewes and A Arevalo (2011). Genesis of igneous rocks associated with El Teniente Cu-deposit, Chile. Journal of Petrology, v. 52, p. 1591-1617.download



Abstracts of Presentations at Professional Meetings: (Last 3 years)

  • Bosch, A., CR Stern and SM Moreiras (2015). Late Pleistocene and Holocene tephrochronology of Mendoza Provicen, Argentina. Abstracts, 14th Chilean Geologic Congress, Serena, Chile, October 2015.download

  • Weller, D. C Miranda, R Moreno, R Villa-Martinez and CR Stern (2015). Tephrochronology of the southernmost Andean Southern Volcanic Zone. Abstracts, 14th Chilean Geologic Congress, Serena, Chile, October 2015.download

  • Munoz, J and CR Stern (2015). Geochemistry of pumice of variable colors and ash formed during the early stages of the June 2011 Cordón Caulle eruption, southern Chilean Andes Abstracts, 14th Chilean Geologic Congress, Serena, Chile, October 2015.download

  • Skewes, MA, K Osorio, A Arevalo, R Floody and CR Stern (2015). Xenolitos de rocas calcáreas afectadas por metasomatismo en el Complejo Máfico El Teniente. Abstracts, 14th Chilean Geologic Congress, Serena, Chile, October 2015.download

  • Stern, CR and JA Naranjo (2015). Along Arc Petrochemical Variations in the Southernmost Andean SVZ (43.5-46°S): Implications for Magma Genesis. Abstracts, 14th Chilean Geologic Congress, Serena, Chile, October 2015.download

  • Morello, M., Massone, M., Martin, FM., McCulloch, R., Borrero, L., Arroyo-Kalin, M., Teyes, O., Alfonso-Durruty, MP., Christensen, M., Miasarti, N., Stern, CR., San Roman, M. (2015). Archaeology of Fuegian Islands: environmental changes along the Holocene, Human Settlement and Cultural Interaction (Patagonia, Chile). Abstracts International Union for Quaternary Research Congress, Nagoya, Japan, May 2015.download

  • Saadat, S, CR Stern (2015) Rate, Temporal Distribution and Geochemical Variation of Volcanism from the North-Central Part of the Lut Block. Abstracts, 2nd International Applied Geology Conference, Mashad, Iran, May 2015.

  • Saadat, S, CR Stern and A Moradian (2015). Evidences of REE mineralization in a Quaternary highly potassic volcanic complex with carbonatite affinities, Central Iran. Abstracts, 2nd International Applied Geology Conference, Mashad, Iran, May 2015.

  • Cardillo, M, Alberti, J, Favier Dubois, CM, and CR Stern (2015). OBSIDIAN IN THE NORTHERN COAST OF PATAGONIA (SAN MATÍAS GULF, ARGENTINA). Abstracts, 10th International Symposium on Knappable Materials, Barcelona, Spain, September 2015.

  • RASCHKE, M, ANDERSON, E, SKEWES, MA, ALLAZ, J, STERN, CR, PERSSON, P, PFAFF, K (2015). MINERALOGY OF A PEGMATITE NEAR WELLINGTON LAKE, JEFFERSON COUNTY, COLORADO (USA) CONTAINING CHEMICALLY-ZONED FLUOCERITE-BASTNÄSITE CRYSTALS. Abstracts, Rochester Mineralogical Symposium, Rochester, New York, April 2015.

  • Stern, CR (2014). Impact of the mid-Holocene H1 eruption of the Hudson volcano: its role in reducing long- distance open-system interactions in southernmost Patagonia. Abstracts, IV International Southern Desert conference. Mendoza, Argentina, November 2014.

  • Saadat, S, CR Stern and A Moradian (2014). Evidences of REE mineralization in a Quaternary highly potassic volcanic complex with carbonatite affinities, Central Iran. Abstracts, 30th International Conference on Ore Potential of Alkaline, Kimberlite and Carbonatite Magmatism, Anatalya, Turkey, September 2014.

  • Saadat, S, CR Stern and A Moradian (2014). Possible REE-rich carbonatite in central Iran: evidence from xenoliths of calcite-bearing plutonic rocks within highly potassic tephrite tuffs of Quaternary Qa’le Hassan Ali maars. Abstracts, Goldschmidt2014, Sacramento, California, June 2014.

  • Franco, NV, G Brooke and CR Stern (2014). Disponibilidad de obsidiana en el centro de la estepa patagónica: un caso de estudio entre el sur del Macizo del Deseado y la cuenca del río Chico. Abstracts, IX Jornadas de Arqueologia de la Patagonia. Coyhaique, Chile, October 2014.

  • Navarro, X., and CR Stern (2014) Aprovisionamiento de materias primas líticas vítreas y obsidiana en la Norpatagonia chilena: implicancias arqueológicas para el sitio Pilauco. Abstracts, IX Jornadas de Arqueologia de la Patagonia. Coyhaique, Chile, October 2014.

  • Saadat, S, CR Stern and A Moradian (2014). Petrology and geochemistry of ultrapotassic tephrites and associated xenoliths from the Qa’le Hasan Ali maars, central Iran. Abstracts, 32nd National and 1st International Iranian Geosciences Symposium, Mashad, Iran, February 2014.

  • Fernández, MM, CR Stern y M Vitores (2013). APROVISIONAMIENTO Y USO DE OBSIDIANAS EN LA CUENCA DEL RÍO LIMAY (PROVINCIAS DE RÍO NEGRO Y DEL NEUQUÉN). Abstracts, Congreso 5th Nacional de Arqueometría Argentina, Rosario, October 2013.

  • Tripaldi, A, Gil, A, Stern, CR, and Neme, G (2013). LA PAYUNIA: APORTES GEOARQUEOLÓGICOS A SU HISTORIA HUMANA Y AMBIENTAL. Abstracts, 9th Encuentro International Center for Earth Sciences, Malargue, Argentina, November 2013.

  • García, JL, Strelin, JA, Vega, RM, Hall, L, and CR Stern (2013). Stratigraphy and sedimentology of late glacial ice-dammed lakes and subaqueous moraines in the Torres del Paine region, Chilean Patagonia (51ºS). Abstracts, GeoSur 2013, Vina del Mar, Chile , November 2013.

  • Weller, D., CR Stern, CG Miranda, PI Moreno and R Villa-Martínez (2013). A very large (>20 km3) late- glacial eruption (Ho) of the Hudson volcano, southern Chile, Abstracts, GeoSur 2013, Vina del Mar, Chile , November 2013.

  • Stern, CR, PI Moreno, WI Henríquez, R Villa-Martínez, E Sagredo & JC Aravena (2013). Tephrochronology in the area around Cochrane, southern Chile. Abstracts, GeoSur 2013, Vina del Mar, Chile, Nov 2013.

  • Stern, CR (2013). Subduction erosion and Andean Magmatism. Invited keynote address. Abstracts GeoSur 2013, Vina del Mar, Chile , November 2013.

  • ALLAZ, J, STERN, CR, PERSSON, PM, and RASCHKE, MB (2013). Proterozoic fluorbritholite-bearing REE-rich hydrothermal pods and veins from near Jamestown, CO Geological Society of America, Annual Meeting, Denver, Colorado, October 2013. Abstracts with Programs.

  • Stern, CR., A Prieto, and J Estevez (2013). THE PEOPLING BY LITTORAL HUNTER-GATHERERS OF THE FUEGO-PATAGONIAN FJORDS. Peloamerican Odyssey. Sante Fe, New Mexico, October 2013. Program and Abstracts page 71.

  • Raschke, M, P Persson, J Allaz and CR Stern (2013) PETROLOGY OF A REE PEGMATITE NEAR WELLINGTON LAKE, CO: AN INTERMEDIARY BETWEEN NYF-TYPE AND MIAROLITIC REE-POOR PEGMATITES IN THE PIKES PEAK BATHOLITH Abstracts, Geologic Society of American, Rocky Mountain Region Meeting, Gunisson, CO, May 2013.

  • Stern, CR, J Allaz, M Raschke, S Cortes and P Persson (2013). Proterozoic Fluorbritholite-bearing REE-rich hydrothermal veins from near Jamestown, Colorado. Abstracts, Geologic Society of American, Rocky Mountain Region Meeting, Gunisson, CO, May 2013.

  • Méndez Melgar, C, O Reyes, A Nuevo Delaunay, A Maldonado Juan Luis García, R Barberena & CR Stern (2013) Holocene human/environment dynamics along the eastern Andean flank of central Patagonia (Aisén region, Chile). Abstracts, Society of American Archaeologists, Annual meeting, Hawaii, April 2013.

  • Stern, CR (2013). Obsidian sources and distribution as a result of long-distance transport in southern Patagonia, South America. Invited talk. Abstracts, Society of American Archeaologists, Annual Meeting, Honolulo, Hawaii, April 2013.

  • Martin, F.M, FJ Prevosti, CR Stern, M San Román, F Morello, Cárdenas and LA Borrero (2013). New Late Pleistocene Evidences from Cerro Benitez, Ultima Esperanza, Chile. Abstracts, Society of American Archaeologists, Annual meeting, Honolulo, Hawaii, April 2013.



Geological Sciences
University of Colorado Boulder
UCB 399
Boulder, CO 80309-0399