RE: CorrectionI don't think It's just the adjoining property scenario, it's probably more the specific trend that has Osisko's interest. in ThreeGold's property.The similarities between Adanac and Malartic, both SE of the the Cadillac break, seems to be the key to their interest. Their due dilligence may also suggest Threegold's historical work may be a carbon copy of the early days of Malartic. We'll know soon enough, as I would expect this will be one of Osisko's main exploration priorities. If Adanac proves out to be the high tonnage low grade deposit that Osisko is banking on, then their existing mill may already be engineered satisfactorally, to run through the Adanac rock.
From the Northern Miner a couple of years ago...
"The reason everyone before Osisko missed out on the Canadian Malartic deposit is that, over the past century, most attention had been focused on high-grade gold veins or massive sulphides within the Cadillac structural break or immediately north of it.
Osisko’s geological team, on the other hand, recognized the tremendous gold-bearing potential of the porphyries immediately south of the Cadillac break. Osisko was the first to assemble scattered, seemly inconsequential drill results from around the area and see that, while there were no flashy high-grade gold grades, there was potential for huge tonnage."
https://www.republicofmining.com/2010/04/08/the-northern-miner-2009-%E2%80%9Cmining-persons-of-the-year%E2%80%9D-osisko-minings-sean-roosen-john-burzynski-and-robert-wares-%E2%80%93-by-tnm-editorial/