Glazner and Bartley (2006) have challenged the “large-magma-body-emplaced-by-stoping” model for granite batholiths. Instead, primarily as a consequence of their geochronological data on the Tuolumne Batholith, Glazner and Bartley (2006), building on Glazner et al. (2004) and Coleman et al. (2004), have inferred that plutons grow by a prolonged sequence of magma injections and/or dikes. Such emplacement of magma by dikes, as opposed to emplacement of magma by stoping, is much less likely to produce xenoliths; therefore, the abundances of country-rock xenoliths in granites represent a major problem for the dike emplacement hypothesis, and require that Glazner and Bartley...

First Page Preview

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