Emeritus Professor of Geology and Supernumerary Fellow
John Frederick Dewey


Basic interests are in structural geology and tectonics from the small-scale structures and fabrics of deformed rocks to the large-scale tectonic scale, especially relating the small to the large and relating detailed geology of regions to plate tectonics. Field-based research is on the rock fabrics and structures of transpression and transtension especially in California, New Zealand, Norway, Ireland and Newfoundland; arc-continent collision; tectonic evolution of Precambrian Earth; evolution of the Appalachian/Caledonian Orogen; geology of Britain and Ireland; deposits of tsunamis, freak waves, and storm surges; geohazard of volcanoes, earthquakes and landslides.

Email: jfdeweyrocks@gmail.com
Tel: 011 44 (0)1865 735525 (home Oxford)

Articles & publications

Recent publications:
Dewey, J. F., 2005, Orogeny can be very short? (NAS Inaugural Paper) 2005. Nat. Acad. Sci. Proc., 102, 15286-15293.
Mange, M. A., Dewey, J. F., and Floyd, J. D., 2005. The origin, evolution and provenance of the Northern Belt (Ordovician) of the Southern Uplands Terrane, Scotland: a heavy mineral perspective: Proc. Geol. Assoc., 116, 251-280.
Dewey, J. F., Van Schalkwyk, L., and Robb, L., 2006, Did Bushmanland extensionally unroof Namaqualand?: Precambrian Research, 72, 315-334.
Dewey, J. F., 2007. Origin and evolution of plate tectonics and the continental crust: a tectonic perspective. Geol. Soc. Amer. Spec. Paper 142. 10-17.
Pearce, M. A., and Dewey, J. F., 2008, Lithospheric-scale transtension between vertical, non- parallel, planar zone boundaries. International Geology Review: 50, 325-342.
Dewey, J. F., Taylor, T., and Monastero, F. C., 2008.Transtension in the brittle field: the Coso region, Southern California: International Geology Review: 50, 193-217.
Taylor, T., Dewey, J. F., and Monastero, F. C., 2008.Transtensional deformation of the brittle crust: field observations and theoretical applications in the Coso-China Lake region, eastern margin of the Sierra Nevada Microplate, southeastern California: International Geology Review: 50, 218-244.
Searle, M., Law, R., Dewey, J. F., and Streule, M., 2010. Structure and tectonic position of the Borolan-Ledmore alkaline suite in the Assynt Culmination: p.383-404 in Tectonics and Mountain Building: the legacy of Peach and Horne, Geological Society of London Special Publication 335.
Mange, M., Idleman, B., Hidaka, H.,Yin, Q-Z.,and Dewey, J., 2010, Detrital heavy minerals, white mica and zircon geochronology in the Ordovician South Mayo Trough, western Ireland: signatures of the Laurentian basement and the Grampian Orogeny: Jour. Geol. Soc. London, 167, 1147-1160.
Dewey, J. F., and Casey, J. F., 2011, The origin of obducted large-slab ophiolite complexes: p. 431-434 in Arc-continent collision, Springer-Verlag Berlin Heidelberg. 493 p.
Brown, D., Ryan, P. D., Afonso, J. C., Boutelier, D., Burg, J. P., Byrne, T., Calvert, A., Cook, F., DeBari, S., Dewey, J. F., Gerya, T. V., Harris, R., Herrington, R., Konstantinovskaya, E., Reston, T., and Zagorevski, A., 2011, Arc-continent collision: the making of a continent: p. 477-496 in Arc-continent collision, Springer-Verlag Berlin, Heidelberg. 493 p.
Ryan, P. D., and Dewey, J. F., 2011. Arc-continent collision in the Ordovician of western Ireland: stratigraphic, structural and metamorphic evolution: p. 373-401496 in Arc-continent collision, Springer-Verlag Berlin, Heidelberg. 493 p.