Browse Collections (33 total)

(DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York


A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays…

Contributors: Western Minerals, Inc.

(KBR) Karroo Igneous Complex -- Birds River, South Africa


The Birds River Complex is a "Bell-Jar" intrusion first described by du Toit in 1905 and then by Ealey and Robey in 1976. One of the best exposed…

Contributors: Dr. Brian Lock, Rhodes University, Western Minerals, Inc.