New Gov. report out on Costigan.

http://www.gnb.ca/0078/minerals/PDF/MRR-2012-1Paper2.pdf

ABSTRACT
Mount Costigan is the largest of several Zn–Pb–Ag sulphide deposits hosted by Early
Devonian felsic volcanic rocks of the Tobique Group in the Chaleur Bay Synclinorium
of west-central New Brunswick. The host sequence at Mount Costigan consists of high
silica (70–76% SiO2), sparsely feldspar–phyric to aphyric rhyolite flows and breccia,
intercalated felsic lithic- and crystal–lithic-lapilli tuff, and subordinate fine-grained
clastic sedimentary rocks. The mineralized zone has a strike length of ~200 m and a
width of up to 300 m, and has been intersected up to 300 m below surface. A historical
resource estimate suggests a mass of mineralized rock of 6–8 Mt. Recent work has
shown that, within this envelope, a subvertical to very steeply east-dipping zone
contains a geological resource of ~0.9 Mt of 4–5% Zn + Pb.