Zircon - The crystal chemistry and zoning characteristics of zircon from Archean granitoids and quartzites of the Beartooth Mountains has not only provided insights into the petrogenesis of the granitoids and quartzites, but has also clarified the manner in which various U, Th, and Pb isotopic reservoirs are introduced or lost to zircon. This, in turn, offers a unique perspective on the interpretation of geochronological data. Also, zonal metamictization and alteration of these zones commonly preserves evidence of invasive late-staged fluids.

Bibliography of zircon papers and abstracts

Mukasa, S. B. and Henry, D. J. (1990) The San Nicholas batholith of coastal Peru: early Palaeozoic continental arc or continental rift magmatism?: Journal of the Geological Society, London, v. 147, p. 27-39.

Carpenter, P. K., Henry, D. J., Mueller, P. A. and Shuster, R. D. (1987) Mineral chemistry, imaging, and U-Pb systematics in zircon: an integrated approach: Geological Society of America Abstracts with Program, v. 19, p. 611.

Henry, D. J. and Toney, J. B. (1987) Combined cathodoluminescence/backscattered electron imaging and trace element analysis with the electron microprobe: applications to geological materials: In R.H. Geiss, ed. Microbeam Analysis-1987, San Francisco Press, San Francisco, p. 339-342.

Henry, D. J., Mueller, P. A. and Toney, J. B. (l986) Zircon mineral chemistry and cathodoluminescence/backscattered electron imaging: evidence for the development of age discordance: Terra Cognita, v. 6, p. l56.