The mineralogy, petrology and geochronology of granitoids and associated intrusives from the southern portion of the New England batholith

Abstract

The Permo-Carboniferous New England Batholith, which is composed of a large number of individual plutons, stocks, dykes and complexes, exemplifies the type of complex intrusive activity manifest in Pacific-type orogenic belts. Granitoids and related rocks predominate, and together their study constitutes the major part of this thesis. The mafic intrusives of this batholith are volumetrically minor, but because they display a close spatial and temporal relationship to these granitoids, and have not been documented previously, they have also been studied in detail.