this will explain. from Millrock.....if all goes well they end up with only 20%.........
Target
Low angle and/or high angle vein-hosted and stockwork vein intrusion-hosted mesothermal gold systems related to mid-Cretaceous granitic to dioritic igneous activity. At the Pogo Gold Mine, now owned by Northern Star Resources (“Northern Star” ASX: NST) low-angle veins often manifest in stacked sets of two to four veins, each varying from 3 m to 20 m thick, and contain average grades of 13 grams per tonne gold. (See Cautionary Statement below). The Goodpaster Gold District consists of a Paleozoic, amphibolite grade, metamorphic basement intruded by a mid-Cretaceous granitic to dioritic batholith, and coeval stocks, dikes, and sills. Crustal scale faults, conjugate to the Denali and Tintina fault systems, bound the Goodpaster Gold District; the Shaw Creek sinistral fault forms the western edge and the Black Mountain sinistral fault system marks the eastern edge of the Goodpaster crustal block(Figure 3).
The Pogo gold deposit, discovered in 1994-1996, is so far, the “crown jewel” of the Goodpaster Gold District, and the catalyst for the surge in district wide exploration in the late 1990’s to early 2000’s. Northern Star’s operating Pogo underground gold mine produced 300,000 ounces of gold annually, at an average historic grade of 13 grams per tonne, from a series of stacked, shallowly northwest dipping, quartz veins with free gold and minor pyrite and arsenopyrite. Current Pogo Mine resources and reserves stand at six million ounces of gold, with past production of four million ounces of gold. (Source: Northern Star website. Millrock cautions readers that this link is provided as a convenience and for information purposes only, and. Millrock makes no representation as to the accuracy, completeness or currency of the information appearing at the link or elsewhere on Northern Star’s website.)
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