Sangster-Bragg Twp.The Sangster-Bragg Property is located on the eastern side and just within the Case Batholith (Map 2161), approximately 60 km northeast of Cochrane, Ontario.
According to Map 2543, the Property is located within Opatica Subprovince paragneisses and migmatites. However, it is also close to the Case Batholith (and may be located within it), which the latter has been described as being massive granodiorite, granite to quartz monzonite. The latter has been potentially reaffirmed in Map P3609. Although the Property is located just off the map to the west, it is suspected that the geophysically interpreted rock types will be felsic to intermediate intrusive suite rocks, including either tonalite, granodiorite or trondhjemite. There may even be some quartz monzonite near the Property as well. That said, the exact rock types that cover the Property are unknown.
Referring to Map 2543, it will be noted that a very strong magnetic trend is striking in a northwest direction, cutting across the mid-point of the Bragg/Newman Twp line. It then appears to be heading towards RTM's Property, although the magnetic intensity is not as strong in the area of RTM's Property.
When this strong magnetic feature is correlated with the geology on Map P3609, it is clear that the cause of the strong magnetic trend is iron formation. Unfortunately, the mapping was terminated about halfway into Bragg Twp., so we don't know for sure, if this iron formation does extend over to RTM's Property, or if the magnetic trend on RTM's Property is a separate magnetic feature altogether.
However, looking at Map 2590, it does appear that the magnetic trend on RTM's Property is separate from the strong intensity magnetic trend (iron formation). It is about 12 km long. However, when you look at Map 82811, it appears that RT Minerals may only have staked the western 3.6 km of this trend?? Ouch!!
Referring to Map 82822, it will now be seen that this 3.6 km magnetic trend of RTMs has broken up into two separate parallel trends and a 3rd short trend at the very west end. In fact, the latter looks like it has been tightly folded around the main northern magnetic feature, with a hairpin shape. This should be an interesting feature to check out on the ground, if there are outcrops!!
Another very interesting magnetic feature that I spotted, was also on Map 82822. It is located just to the southwest of RTM's Property. Once you have the map up on the computer screen, zoom out until the image is at 67%. You will see a magnetic anomaly that exhibits an oval egg-shaped feature. It has a magnetic ring, and possibly 2 of them, around it. To me, this appears to be an intrusive, and if it is, it would be located with the Case Batholith (an intrusive/pluton within an intrusive?). RTM's Property would lie about 1 km outside this 'intrusive'!!! You can also see it on Map 82811.
Not by any coincidence I'm sure, if you look at Map 2598, the Vertical Gravity Gradient shows a very intense gravity low that correlates with the egg shaped magnetic feature. As I've mentioned before in a previous post, this is generally a sign, in this area, that the rock types are related to a felsic intrusive when you get an intense gravity low such as this one.
There is no Ternary response over the RTM Property.
It doesn't look as though there will be too many outcrops. There may be some along both sides of the Little Abitibi Road, which is just off the east side of Highway 652.