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Dr. Chris Mattinson
Assistant Professor
Department of Geological Sciences, Central Washington University
Ellensburg, WA 98926-7418
Tel: 509.963.1628
fax:509.963-2821
mattinson@geology.cwu.edu
Teaching
Research
My research interests center on using the evidence recorded in metamorphic rocks to address regional tectonic questions and to examine the time-scales of orogenic processes at convergent margins. In particular, my work with ultrahigh-pressure (UHP) rocks examines the behavior of the lithosphere during continental collision using metamorphic petrology, geochronology, geochemistry, and thermodynamics/thermobarometry. My main laboratory techniques are mineral chemistry by electron microprobe, U/Pb geochronology and trace element analyses by ion microprobe (SHRIMP-RG), and trace element analysis by laser ablation ICP-MS, coupled with evaluation of the geological context of the samples analyzed through field geology. My current research projects include:
Ultrahigh-pressure metamorphism and geochonology, western China: One of the outstanding questions of ultrahigh-pressure metamorphism metamorphism is: How did these rocks return to the surface while preserving their high P/T mineral assemblages? Critical to addressing this question is a better understanding of exhumation rates from depths >80 km to the upper crust. These rates can be determined by combining geochronology and petrology, and therefore, I have focused on zircon U-Pb geochronology using the ion microprobe (SHRIMP-RG) linked to pressure, temperature, and mineral paragenesis by REE geochemistry, mineral inclusion analysis, and thermobarometry. Field work in the North Qaidam ultrahigh-pressure terrane in western China includes five field seasons in western China in 2001, 2002, 2008, and 2009.
Photos of 2008 field work
Granulite facies metamorphism and geochonology, eastern Mojave, California: Granulites of the eastern Mojave record Early Proterozoic tectonism during the growth of the North American continent. This project uses field and petrographic investigation, combined with U/Pb geochronology of zircon and monazite, to address the timing of these events, and REE geochemistry, thin section and mineral inclusion relationships connect the U/Pb ages to metamorphic fabrics and mineral assemblages.
Selected Publications
Mattinson, C.G., Wooden, J.L., Zhang, J.X. and Bird, D.K., in press. Paragneiss zircon geochronology and trace element geochemistry, North Qaidam HP/UHP terrane, western China. Journal of Asian Earth Sciences DOI: 10.1016/j.jseaes.2008.12.007. Zhang, J., Meng, F., Li, J. and Mattinson, C.G., in press. Coesite in eclogite from the North Qaidam and its implications. Chinese Science Bulletin. Zhang, J., Mattinson, C. G., Meng, F., Wan, Y., and Tung, K., 2008, Polyphase tectonothermal history recorded in granulitized gneisses from the North Qaidam HP/UHP metamorphic terrane, Western China: evidence from zircon U-Pb geochronology: Geological Society of America Bulletin, v. 120, no. 5/6, p. 732-749. Mattinson, C. G., Colgan, J. P., Metcalf, J. R., Miller, E. L., and Wooden, J. L., 2007, Late Cretaceous to Paleocene metamorphism and magmatism in the Funeral Mountains metamorphic core complex, Death Valley, California, in Cloos, M., Carlson, W. D., Gilbert, M. C., Liou, J. G., and Sorenson, S. S., eds., Convergent Margin Terranes and Associated Regions: A Tribute to W.G. Ernst, Geological Society of America Special Paper 419, p. 205-223, doi: 10.1130/2006.2419(11). Mattinson, C. G., Menold, C. A., Zhang, J. X., and Bird, D. K., 2007, High- and Ultrahigh-Pressure Metamorphism in the North Qaidam and South Altyn Terranes, Western China: International Geology Review, v. 49, no. 11, p. 969-995. Mattinson, C. G., Wooden, J. L., Liou, J. G., Bird, D. K., and Wu, C. L., 2006, Age and duration of eclogite-facies metamorphism, North Qaidam HP/UHP terrane, western China: American Journal of Science, v. 306, no. 9, p. 683-711. Zhang, J. X., Mattinson, C. G., Meng, F. C., and Wan, Y. S., 2005, An Early Palaeozoic HP/HT granulite-garnet peridotite association in the south Altyn Tagh, NW China: P-T history and U-Pb geochronology: Journal of Metamorphic Geology, v. 23, no. 7, p. 491-510. Zhang, J. X., Yang, J. S., Mattinson, C. G., Xu, Z. Q., Meng, F. C., and Shi, R. D., 2005, Two contrasting eclogite cooling histories, North Qaidam HP/UHP terrane, western China: Petrological and isotopic constraints: Lithos, v. 84, no. 1-2, p. 51-76. Enami, M., Liou, J. G., and Mattinson, C. G., 2004, Epidote minerals in high P/T metamorphic terranes: Subduction zone and high- to ultrahigh-pressure metamorphism, in Liebscher, A., and Franz, G., eds., Reviews in Mineralogy and Geochemistry, Volume 56: Epidotes: Washington, D.C., The Mineralogical Society of America, p. 347-398. Mattinson, C. G., Tsujimori, T., Zhang, R. Y., and Liou, J. G., 2004, Epidote-rich talc-kyanite-phengite eclogites, Sulu terrane, eastern China: P-T-fO2 estimates and the significance of the epidote-talc assemblage in eclogite: American Mineralogist, v. 89, no. 11-12, p. 1772-1783.
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