By the way, it looks like we may not be a porphyry after all:

"Recent work on the Property by Cambria includes a re-interpretation of the deposit type. Although this interpretation is presented below, it can be considered at this point only a hypothesis. The common interpretation of Schaft Creek as a porphyry deposit remains the working model. Figure 7.2 depicts the Property geology. The following description of the Property geology is modified from Caron et al. (2012)."

"Previous work on the Schaft Creek deposit has generally considered the deposit in terms of a calc-alkalic copper-molybdenum porphyry system related to an elongate, high-energy, structurally controlled breccia system. Work by Cambria in 2010 and 2011 has led to the conclusion that a rather different deposit model may better describe the deposit. Although the Schaft Creek deposit bears some characteristics of a calc-alkalic porphyry copper deposit (broadly disseminated sulphide mineralization, certain alteration sequences including potassic and phyllic alteration), several key characteristics are notably absent, including a significant distal pyrite halo and significant argillic alteration. Schaft Creek may be better described as a polymetallic (copper, molybdenum, gold, and silver), structurally controlled, low sulphidation, hydrothermal replacement deposit, with mineralization and alteration related to intrusion of a series of dike-like feldspar-quartz porphyry bodies along a splay of the Mess Creek fault. The deposit formed in a volcanic arc setting, likely on a back-arc rifted continental fragment."