The RLX North and RLX South property package is located within the Red Lake Greenstone Belt of Northwestern Ontario. Collectively the RLX North and RLX South properties form a contiguous land package of over 10,000 hectares surrounding Great Bear Resources’ Sobel property.
The primary distinction between the two properties (RLX North and RLX South) is with the interpreted geology underlying each, with RLX North interpreted to be underlain primarily by the 2.96-2.99 Ga Balmer Assemblage, and RLX South interpreted to be underlain primarily by the 2.73-2.75 Ga Confederation Assemblage. The contact between these two metavolcanic packages is highly prospective for economic deposits of gold in the Red Lake mining camp. The majority of historic gold production from the district has been mined from within a few hundred meters of this important geological contact, making it a high priority exploration target.
The exact boundaries and the contact between the two metavolcanic packages, and the surrounding felsic intrusives are not accurately mapped owing to the presence of thick overburden. The lack of rock exposure (less than 1%) has also resulted in limited historical exploration, and the property is underexplored in comparison to other areas of favourable stratigraphy within the Red Lake Greenstone Belt. This represents an exploration opportunity, to answer previously unanswered questions about the underlying geology of the area.
While historic exploration has been limited, particularly in the areas of preliminary interest on the property, sufficient exploration has been done to provide some useful data to be reinterpreted. Selco diamond drill hole 160-5-1 drilled in 1980, for example, was collared in the northeastern portion of the RLX North property. Based on government geological maps, this drill hole was collared several hundred meters into the surrounding felsic intrusives. However, an examination of the drill core logs reveals that the drill hole remained in metavolcanics or metasediments for its entire 300 ft length. This hole was interesting and may warrant follow-up work because the top portion of the hole, which is almost exclusively mafic-ultramafic and metasedimentary, is consistent with lithology typical of the Balmer Assemblage, while the lower portion of the hole, which is almost exclusively felsic to intermediate, is consistent with lithology typical of the Confederation Assemblage. It is possible that this hole may have transected the Balmer-Confederation contact in an area previously interpreted to be felsic intrusives.
Based on mapped geology and regional geophysical surveys, the project area can be interpreted to be a possible extension of the geology and structures hosting Evolution Mining’s Red Lake Gold Mines which are located approximately 10-17 km to the northwest of the RLX South and RLX North properties, respectively. Historic geophysical surveys have identified the possible presence of D2 folds and east plunging anticlines on property, which may be important structural controls on mineralization.
Property Digital Data Base Acquisition:
Tri Origin Exploration Ltd (TOE) staked one of the largest contiguous land positions in the Red Lake greenstone belt of northwest Ontario (early to mid 2000). This strategic land position covers the south-eastern extension of the Red Lake greenstone belt, from which over 22 million ounces of gold has been produced. The exploration concept was to unravel the geology and show the potential for hosting the same rock types that host some of the richest gold zones and named the project RLX (Red Lake Extension).
TOE commenced this strongly integrated geological project was comprised of programs of geological mapping, overburden geochemistry, airborne and ground geophysical surveying and diamond drilling have led to recognition of extensions and repetitions across the property of the important, gold-hosting rock units at Red Lake and the continuation across the property of major structural features thought to be important in localizing gold deposits at Red Lake. Importantly, sulphide mineralization and zones of rock alteration similar to those observed in the Red Lake District have been identified through Tri Origin’s work. Anomalous gold values have been found to be associated with these features.
Before TOE commenced the project the limited outcrop has hindered field mapping to date, especially in areas thought to host upper Balmer rocks. The primary rock types which have been identified on the property include mafic volcanic rocks, sedimentary rocks, and felsic volcanic rocks which are primarily located in the north and central-east portions of the property. Felsic intrusive rocks are found throughout the property. To date ultramafic rocks have only been identified in the occasional boulder and in a historic drill hole completed at the very northeast of the property during the 1970’s by Selco intersected ultramafic rock in association with sulphide iron formation, sedimentary/tuffaceous rocks and felsic volcanic units (upper Balmer?).
In February 2012, Tri Origin entered into an option agreement with Osisko Mining Corp whereby Osisko would earn a majority interest in the property by funding a four year exploration program and making certain cash payments to Tri Origin. The first year of the Osisko option saw the completion of a program of geological mapping, line cutting, IP and magnetic geophysical surveying and diamond drilling at the northwest part of the property. At the beginning of the second year of the Osisko option a preliminary program of line cutting and geophysical surveying was commenced in areas now believed to be underlain by upper Balmer rocks. Soon after commencement of this program, Osisko informed Tri Origin that due to a decline in gold price it was deferring all exploration expenditures at the project and it subsequently terminated the option on October 16, 2013. As of May 2013, a total of $823,340.15 had been spent on the property on behalf of Osisko during the first and second year terms of the option.
All of the large gold mines at Red Lake occur at the upper part of the Balmer Assemblage. The sequence of rocks comprising the “upper Balmer” is distinctive in the district. Importantly, during the course of recent work at RLX a new and proprietary interpretation of the distribution of the ore-hosting upper Balmer rock sequence extending southeast from the Red Lake Gold Mining District was developed by Tri Origin
Tri Origin and, in part, through the Osisko option has been successful in delineating new areas of prospective host rock believed to correlate with the “upper” Balmer rocks at Red Lake which host all of the substantial gold mines in the District. Tri Origin held the land as long as it could but eventually with no new work being completed the claims reverted to the crown. This occurred just before the discovery of the LP structure by Great Bear Resources.
With gold prices up and people focused on Red Lake, groups of companies started staking prospective targets. This led to Pacton, Bounty Gold and Great Bear acquired ground covering parts of the former RLX property.
Straightup Resources entered into an agreement with Bounty Gold to option and work the Property.
Bounty Gold successfully acquired the RLX north and south claim groups. These claim blocks encircle the claim block acquired by Great Bear.
The interpretative geology as Upper Balmer rocks and prospective structures are located on both properties. Specifically, Bounty Gold was able to acquire the claim area drilled in the 1970’s by Selco. This hole intersected ultramafic rock in association with sulphide iron formation, sedimentary/tuffaceous rocks and felsic volcanic units (upper Balmer?).
Straightup Resources reached out to Dr. Robert Valliant of TOE to facilitate acquiring the digital database and well as notes and interpretation of the exploration. The value of the exploration work far exceeds $1.0 million. This sets Straightup Resources with a great advantage that will move exploration to a drill stage faster. An added bonus is that Dr. Valiant has joined the company as an advisor.
One method of exploration that has become widely used by explorers in Red Lake. The process of Spaciotemporal Geochemical Hydrocarbon (SGH) testing has occurred on the Great Bear Sobel property that is encircled by RLX north and south. Great Bear in a September 9, 2020 press release announced new Gold Targets at the Sobel Property indicated by SGH.
The Release stated:
“Current results relate to the Sobel property, which was acquired to control prospective stratigraphy within the Red Lake Greenstone Belt along the same regional D2 fold axis that controls the majority of gold mineralization at the Red Lake Gold Mine.
Highlights of regional exploration at the Sobel property include:
• Completion of a 399 sample, four square kilometre Spaciotemporal Geochemical Hydrocarbon (“SGH”) survey similar to that used by Great Bear to successfully identify gold mineralization at the LP Fault, Dixie Limb and Hinge zones at the Dixie property.
• Identification of two large SGH targets at the Sobel property, respectively measuring approximately 800 metres by 500 metres, and 900 metres by 450 metres.
• The SGH targets overlie regional D2 fold closures with a similar geological and structural setting to the gold zones at the RLGM, and the Hinge zone at the Dixie property. These targets are apparent on regional geophysics and were predicted by Great Bear’s exploration team to have gold mineralization potential prior to undertaking the SGH survey.
• Prospecting, geological mapping and geochemical analysis have identified mafic volcanic rocks including high iron tholeiite and basaltic komatiite, both of which are known to occur within the tholeiitic-komatiitic Balmer sequence of the Red Lake Greenstone Belt, which host the majority of past and current gold production in the Red Lake district. These are locally in contact with units of meta-sediments, intermediate, felsic and intrusive rocks.
A substantial amount of additional work is warranted to properly explore the target areas currently outlined by the ROE and to continue to generate new targets throughout this prospective terrain.