Compiled some noteworthy comments from the Northern Miner article, as well, any rockhounds should check out the link, lots of intriguing images there that do bear resemblance to the RoF.

(Ring of Fire is) a crescent-shaped horizon of silicate iron formation, overlain to the outside by metasediments and metavolcanics, and underlain on the inside by older arc rocks, including some metasediments, metavolcanics, and abundant felsic-to-intermediate intrusions. (This geology is similar to that of the Shaw Dome near Timmins, Ont.)

See attached link to MNDM PDF file for Shaw Dome:

www.mndm.gov.on.ca/mines/ogs/Posters...

The multiple distinct mineralized zones, lying close together, suggest a unique geology. A technical report on Eagle One describes it as a magmatic sulphide deposit. A mantle-derived, highly magnetic ultramafic intrusion has been emplaced along the margin of a regional-scale granodiorite pluton that had been intruded into, causing a doming of the host Sachigo greenstone belt rocks.

The intrusion is situated between the granodiorite footwall and the surrounding Sachigo greenstone belt hangingwall. A series of conduits cutting across the granodiorite have acted as feeders to the main intrusion. Eagle One is well within such a conduit feeder, at some distance from the main intrusion.

Jim Mungall, Noront's chief geologist, says that Eagle One was formed by the assimilation of iron formation by komatiitic magma (basaltic magma with more than 18% magnesium oxide). The deposit was formed in a magmatic conduit.

The type of target Noront is looking for is feeder dykes "slamming" into the sill, which is the main intrusive body. The feeder dykes are typically detected using magnetics. Noront says there are a number of further copper-nickel targets within this prospective geology.