The advent of polarized light microscopy in the middle of the 19th century allowed mineralogists and petrologists interested in igneous rocks to recognize the widespread occurrence of fine-scale heterogeneities in the optical properties of minerals (e.g., see Young 2003 for details). The interpretation of mineral zoning patterns as archives of magmatic processes has been with us for some time (e.g., Larsen et al. 1938; Tomkeieff 1939). The development of the electron microprobe in the 1960’s allowed mineral zoning profiles to be quantitatively analyzed and modeled (e.g., Bottinga et al. 1966; Moore and Evans 1967). Enhanced...

First Page Preview

First page PDF preview
You do not currently have access to this article.