The property was later re-examined by M. Theriault, who discovered gold mineralized float material on the property. This resulted in staking out a number of claims along the east-west township line between Reeves-Penhorwood, and Sewell-Kenogaming Townships. A total of eight claims were additionally examined by D. K. Burke for Erie Canadian Mines, Limited. D. K. Burke had reported that visible gold samples were exhibited from the most westerly claims in Reeves Township. These samples were obtained from a rusty quartz-rubble which was evidently float material. Upon further examinations the area had also consisted of no quartz in place that was associated with the gold bearing float material. This resulted in further exploring the main trench area in gaining access to grab and chip samples. Most of the sampling carried out had returned nil to trace in gold with the highest assay being 0.01 oz.
1946 – Kalbrook Mining Company, Limited
Kalbrook Mining had examined a total of 82 claims straddling the mutual corner of the four townships Reeves, Penhorwood, Sewell, and Kenogamining. This also had included the claims previously covered by M. Theriault and his gold mineralized float showings, and a part of the property was also optioned from Penko Gold Mines, Limited. Further prospecting would continue when a geological map was prepared and at least 13 drill holes are indicated on the map but no drill logs are available. Most of these holes that were put down had been focus on exploring the ground in vicinity to the gold mineralized float trench.
A major amount of work was undertaken by Kalbrook Mining that included geophysical and soil geochemical surveys, stripping, trenching, and diamond drilling. Most of the work was done on late quartz veins carrying visible gold and disseminated pyrite crosscutting sheared mafic volcanic rocks with minor interbedded clastic sedimentary rocks. A number of bands of intense east trending shears are separated by relatively undeformed zones. Its also within a section of this property that the folded schistose and altered units are cut by an auriferous quartz vein which is discordant to the early foliation and is only slightly folded. The auriferous quartz veins, being 2 to 30 cm wide, are generally considered to be zoned between 2 and 5 cm of grey, coarse grained, quartz along the walls and are white in some place. The central portion of this vein is known to also be very coarse grained quartz. Pyrite is also commonly considered to be widely distributed through the quartz veining, and is locally concentrated within the wall-rock. In some cases, rare Chalcopyrite is also observed. Gold is also considered to occur as fine specks along fracture surface within the white quartz that traverses the area.
Chip samples of the quartz vein in a trench returned up to 28.89 g/t gold from sampling by Glen Augen Resources in 1987. Glen Augen had also carried out geological mapping of the property through September, 1987 on the 276 contiguous claims of the Reeves Joint Venture Property. The property currently being explored at this time had been situated in Reeves, Sewell, Penhorwood, and Kenogaming Townships. The property was also held under joint venture agreements with Glen Augen and Goldrock Resources incorporated. Mapping on the property was additionally carried out by pace-and-compass medoth, and the accumulated draft at 1:2500 Scale. The fundamental objective of the mapping programme was mainly aimed at identifying any evidence of gold mineralization on the property.
Prospecting in the in the working townships were further explored since the time that many prospectors ventured westward from the Porcupine Mining Camp. Prospecting resulted in discovering a gold bearing quartz vein that was examined on four claim properties that straddles the Reeves-Sewell Township Line. The property had also been surrounded by the northernmost claims of the RJV property. (See Tremblay Property for more information). One of the foremost showings of the area was known as the Gosselin Vein, which primarily consists of a north-northeast-striking zone of sheared and carbonatized mafic volcanic rock which hosts irregular masses of quartz containing minor pyrite, pyrrhotite, chalcopyrite, tourmaline, and fuchsite. Some of the main altered rock that enclose the quartz rich iron zone had also been exposed for 800 m and is locally 15 m wide. Intrusive sheets of ultramafic and mafic rocks are locally abundant. One of the largest intrusion of this type had also hosted Steeley’s Talc Deposit in Reeves Township. Numerous dikes and lens shape bodies of feldspar, quartz feldspar, and quartz porphyry have intruded the superacrustal rocks of the belt. One of the largest bodies of this type is also situated along the northern boundary of Penhorwood Township. Large granitic plutons are also considered to be the main rock types that surround the Swayze belt, and completely separate it from the Abitibi Greenstone Belt to the east.
A total of three major faults were also identified in the norther part of the Swayze Belt which are characterized as the north-northwest, west-northwest, to west, and east-northeast. The northeast structure tends to display left handed displacements and are commonly occupied by diabase dikes. A series of westerly-trending faults occur north of the southern boundaries of Sewell and Reeves Townships. These areas are generally marked with zones of schistose, carbonatized and sericitized mafic volcanic rocks. One of the primary reports by Milne (1972), suggests that these structures are in parts the westerly extension of the DPF. Some other westerly oriented fault zones are interpreted by Pyke (1987) to follow the margins of the belt of sedimentary rocks in Penhorwood and Keith Townships. The foremost major east-northeast trending fault is proposed by Pyke (1987) to partially follow the northern margin of the HFV complex. This fault is generally occupied by schistose, carbonatized ultramafic rocks commonly hosting quartz-feldspar porphyry dikes and quartz-carbonate veins. Pyke had also suggested that this major structure may in fact be the western extension of the Destor Porcupine Fault.
It was also during the months of June, July, and November, 1988, that a geophysical crew was contracted to carry out a IP survey of the property. The induced polarization (IP) survey had additionally delineated a broad zone of high chargeability anomalies which are interpreted to be caused by pyritic, chlorite-carbonate schists marking a zone of high-strain deformation within mafic volcanic rocks. Other IP anomalies axes located on the flanks of high-magnetic signature are interpreted to represent sulfide facies iron formation, or sulphide alteration of iron-oxide facies iron formation. IP anomalies were also observed in the areas of moderate magnetic signature, which are interpreted as representing zones of higher concentration of disseminated sulfides within mafic volcanic units.
1989 – 1990 – Glen Auden Resources, Ltd. And American Barrick Resource, Ltd.
Theoretically, the magnetic method that was used had been based on measuring alteration and magnitude of the Earth’s naturally occurring magnetic field. This is largely caused by the changes in the magnetization of the rocks in the Earth. These changes in magnetization are due mainly to the presence of the magnetic minerals, of which the most common is magnetite, and to a lesser extent ilmenite, pyrrhotite, and some less common minerals.
Magnetic Earth anomalies are generally caused by changes in two types of magnetization that include induced and remanent (Permanent). Induced magnetization is generally considered to be caused by magnetic field being altered and enhanced by increases in the magnetic susceptibility of the rocks, which is a function of the concentration of the magnetic minerals. The other being Remanent Magnetization that is independent of the Earth’s magnetic field, and is the permanent magnetization of the magnetic particles (Magnetite, etc.) in the rocks. This generally created when these particles orient themselves parallel to the ambient field when cooling. Its this type of magnetization that may not be in the same direction as the present Earth’s field, due to changes in the orientation of the rocks or the field it self.
Parallel Chip samples that were obtained by Fumerton and Houle had returned assay grades of 7.68 g/t Au in 1993.
The Penko Gold Property lies in the northern part of the Archean Swayze Greenstone Belt, which comprises of typical Archean supracrustral sequences of mafic submarine flows with less abundant intermediate to felsic volcanics and units of epiclastic sedimentary rocks. This also includes two substantial units of oxide and sulfide facies banded iron formation which occur in the region, such as the Radio Hill Iron Formation, with a strike length of about 5 kilometers, and a maximum thickness of 200 m, in northwestern Penhorwood Township, and the 20 kilometer Long Nat River Iron Formation. These iron formations generally lie at the contact between the mafic and felsic volcanic sequence in Kenogaming, and Penhorwood Townships.
Its also within the area that intrusive sheets and pods of ultramafic and mafic rocks are locally abundant, with the largest of these intrusions hosting the Steeley Industries Talc Deposit, and GFG Resource’s Pen Gold Project. Ultramafic intrusions bodies in the region have also proven to be quite economical to warrant interest in the area. The area is also surrounded by numerous asbestos showings that area mainly associated with serpentinized ultramafics in the Reeves, Penhorwood, and Kenogaming Townships. Nickel Deposits are also known to commonly occur in Shear Zones of ultramafic rocks in northeast Kenogaming Township, where nickeliferous sulfides are associated with disseminated pyrrhotite, and carbonated serpentinite.
Gold Showings of the region are typically considered to be hosted in Archean Greenstone-deposits, which generally occur in shear zones. Much of the mineralization that’s associated with this shearing includes pyritization, chloride-carbonate schists in mafic volcanic sequence, and pyrite, sericite-carbonate schists in mafic volcanic rocks. Veins of quartz with or without carbonate are also commonly present in the area of the auriferous zones.
Abitibi Greenstone Belt
The Abitibi Greenstone Belt is a unique amongst greenstone belts of the Canadian Shield within the province of Ontario. Some of the most interesting factors include that it has a high ratio of supercrustal to intrusive rocks, that is the largest greenstone belt in the world. This generally has significantly low metamorphic grade, and contains a diverse spectrum of richly mineralized deposits. Geological mapping within the Abitibi Greenstone Belt has been carried out since 1900 to 2010. These maps generally had establish that the Abitibi Greenstone Belt mainly consists of mafic to felsic metavolcanic units, metasedimentary units, and a variety of granitoid rocks. One of the foremost earliest sweeps of metavolcanic rocks within the unit is the Keewatin that had shown to deformed prior to, and after the deposition of a younger suite of metasedimentary and alkalic metavolcanic rocks, (Temiskaming). The region extend of the break now known as the Larder-Cadillac Shear Zone, and the Porcupine-Destor Deformation Zone, that contains erratic gold mineralization. The area is also known for hosting significant iron and copper-zinc deposits. These are known to be similar to the Sherman Iron Mine, Kidd Creek Deposits, and the Kamiskotia Camp. Nickel mineralization is also associated with ultramafic flows and has been discovered in other parts of the Abitibi Greenstone Belt such as Fredrick House Lake area, and (Alexo/Dundonald Deposits), and to the south of Timmins in the Shaw Dome area (Redstone, Hart (Tontine), McWatters, Langmuir No. 1 and Langmuir No. 2 Deposits.
Between 1970 and 1980’s. systemic mapping was continued in the area, for example, in the Black River group, and the region between the Kenogamissi and Watabeag batholiths. The Abitibi Greenstone Belt is bounded to the south by the Ramsey-Algoma Granitoid Complex, the Cobalt Embayment, the Pontiac Subprovince, to the north by the Archean Opatica Subprovince, to the west by the Ivanhoe Lake Cataclastic Zone, which marks the western boundary of the Kapuskasing Structural Zone, and east by the Proterozoic Grenville Province.
The Abitibi Greenstone Belt is generally split into two belts known as the Northern Belt, and a Southern Belt. These are also classified as Internal and External. The northern portion of the Abitibi Greenstone Belt is characterized by abundant tonalite-trondhjemite-granodiorite intrusions, large anorthosite complexes, paucity of ultramafic flows, and greenschist or higher regional metamorphism. The southern belt of the Abitibi Greenstone area is characterized by fewer tonalite-trondhjemite-granodiorite intrusions, abundant ultramafic flows, greenschist, or lower regional metamorphism. Its also in Ontario that only a limited part of the northern Abitibi Greenstone Belt is preserved in the Detour and Burntbush areas, north of the Lake Abitibi Batholith. The area generally comprises of a large volume of foliated tonalite-granodiorite batholiths that were emplaced followed by more massive granodiorite, granite, feldspar + Quartz Porphyry, and Syenite bodies.
The Muskego Reeves Assemblage is an economical regional area for VMS Sulphide Deposits, and Massive Disseminated Sulphides. Some of the best assays for VMS Sulphides were taken near the newly acquired property on personal deed land acquired by OntarioExplorations101 Surveyors in 2018. The property covers an area of 8,572 acres in Foleyet Township of North-Eastern, Ontario, Canada.
Some of the highest-grades reported in the Muskego-Reeves Assemblage are up to 10,700 ppm Cu taken from the island on Ivanhoe Lake (Chalcopyrite), and 3950 ppm Zn, and 49 ppm Au in Sphalerite veining.
The Muskego-Reeves Assemblage is considered to have the greatest potential for economic concentrations of volcanic massive sulphides (VMS) base metal sulphides. This is indicated by the results from past diamond drilling, the presence of extensive zone of volcanogenic hydrothermal alteration and a diversity of volcanic compositions with alternations of felsic, mafic, and ultramafic volcanic units. In the Abitibi Sub-province, VMS deposits are commonly associated with this type of compositional diversity.
Massive and disseminated sulphide clast with sphalerite and chalcopyrite were observed in outcrops of conglomerate along the New Channel of the Ivanhoe River.. Also of interest is partially assimilated massive sulphide inclusion occurring with the Ivanhoe Lake Stock. The inclusions are observed on a small island in the central part of Ivanhoe Lake. It consists of massive pyrite, magnetite, and chalcopyrite. This is where 10,700 ppm Cu was taken from.
Hydrothermal Alteration in Foleyet Township by the presence of chloritoid porphyroblasts in carbonatized mafic volcanic rocks underlying a sub-economic stratabound massive sulphide horizon in a diamond drill hole in southeastern Foleyet Township, and also observed in outcrops of carbonatized felsic volcanic rock along the Ivanhoe River at about 15 km east of the drill hole. This suggests the possibility of extensive chloritoid alteration in an area of little outcrop. Its also worthy to note that the Chloritoid-bearing altered volcanic rocks are associated with a number of Archean volcanogenic massive sulphide deposits.