- Ownership: Part of the South Timmins Mining JV with Fancamp Exploration (75% Platinex, 25% Fancamp)
- Location: Heenan and Benton townships, Ontario, Canada
- Land package: 390 ha
- Target commodities: Gold
- Heenan is located on a large magnetic anomaly that is associated with the Woman Lake Iron formation and other magnetic lithologies located on the SE corner of the Swayze volcanic belt. The Swayze magnetic anomaly shows signs of hydrothermal alteration, which in combination with the associated gold mineralization at Heenan makes the property a very attractive gold target.
- Prospecting, geological mapping, soil sampling and geophysical surveys were carried out at Heenan by Fancamp in 2019-2020
Location and Access
The Heenan property is located in Heenan and Benton townships approximately 110 km southwest of Timmins and 170 km northwest of Sudbury. The property can be accessed by truck and ATV through the Mallard, Sultan Industrial and Sultan roads that intersect Highway 144.
Geology and Mineralization
On a regional scale the property is located within the Swayze greenstone belt, part of the western Abitibi Subprovince. The Swayze greenstone belt is bound to the north by the Nat River granitoid complex, to the west by the Kapuskasing Structural Zone, the south by the Ramsey-Algoma granitoid complex, and the east by the Kenogamissi granitoid complex. Volcanic and sedimentary rocks range in age from 2731 to 2690 Ma, whereas the intrusive rocks range in age from 2740 to 2660 Ma. The volcanic and sedimentary rocks form an upward-facing, upward-yuonging stratigraphic sequence that is complexly folded and faulted (Heather et al, 1996).
The Property is located within the Woman River anticline and is centered on the Woman River iron formation, which divides overlying mafic volcanic rocks of the October Lake formation to the northwest and west from underlying, calc-alkaline, felsic to intermediate volcanic rocks and sub-volcanic porphyries of the Strata Lake formation to the southeast. The Strata Lake formation occurs within the upper portions of the Marion Group which is thought to correlate with the Deloro assemblage of the southern Abitibi belt, based on U-Pb geochronology, (van Breemen, et.al, 2006). Van Breemen, et.al., describe the upper portions of the Strata Lake formation as “dominated by variably chloritized and sulphidized volcanic rocks related to crackle breccia zones that are interpreted to represent paleo-hydrothermal conduits for iron-rich fluids that precipitated out of the overlying ironstones”.
Upon review of airborne geophysical data available through MENDM’s digital database of geoscience assessment work, the iron formation located at the west end of the Property appears to have been displaced at a possible fold nose for a distance of approximately 1.1 km by a dextral strike-slip fault, informally termed the Mallard Shear zone, a regional structure which is part of several northwest – southeast directed fault structures that may have provided conduits for hydrothermal fluids to deposit mineralization at favorable horizons within the stratigraphy, particularly at the contact of the felsic volcanic rocks with the iron formations. The area of the fold nose, transected by the shear represents an excellent target for further exploration (Flanagan, 2018).
To the northeast of the Property, local areas within the iron formations, particularly adjacent to the underlying felsic volcanic rocks contain prospective zones of quartzcarbonate veining which appear to host gold, often directly adjacent to feldspar-quartz porphyries.