- 454 Claims, 11,720 Ha., 100% Harfang
- Central to Timmins, Kirkland Lake and Matachewan Gold Camps
- Highly prospective syenite, early-stage exploration
- Multiple high-grade gold occurrences up to 105 g/t gold and 7.7 g/t over 3 metres from channels
- Highly encouraging results 2021
ABOUT THE EGAN PROPERTY
LaSalle optioned the Egan property from local prospectors in August 2020 based on their 2017 discovery of the E1 Zone after logging activities exposed a northeast trending shear zone within a syenite containing a well developed stockwork of quartz veins. Syenite intrusions show a close spatial relationship with several gold deposits in the region including Alamos’ Young Davidson Mine (3M oz), the past producing Ross Mine (1M oz) and Kirkland Lake Gold’s Macassa (5M oz) and Holt-McDermott (3M oz) Mines.
Initial sampling by the vendors returned gold assay values ranging from 0.1 to 105.0 g/t gold with 15% of the samples returning over 10 g/t, including 105.0 g/t, 67.2 g/t and 47.6 g/t gold from 78 samples. Assays of nine grab samples by LaSalle ranged from 0.09 g/t to 63.70 g/t gold, including individual select grab samples yielding 63.70 g/t, 22.70 g/t and 4.70 g/t gold, while two composite chip samples returned 7.67 g/t gold over 3.0 metres and 2.80 g/t gold over 4.0 metres.
A second gold bearing zone E2 is located 3 km southeast of the E1 Zone and consists of a series of easterly trending, laminated quartz veins hosted by mafic metavolcanics near the contact with the Bradley Lake Syenite. Sampling done by the vendors from trenches returned high grade gold assay values of 15.3 g/t, 16.6 g/t and 19.30 g/t gold.
WORK BY HARFANG
In the Fall of 2020, LaSalle conducted a reconnaissance exploration program to map major rock types, examine known showings and prospect other geological targets on the property. This work resulted in the discovery of a third high-grade gold occurrence called the E3 Zone from which the best grab samples yielded 15.7 g/t and 26.9 g/t from quartz vein bearing chlorite schist with 3-8% disseminated pyrite.
In 2021, two field programs were initiated. The first program included 117 square kilometres of Aerial LiDAR (Light Detection and Ranging) and 828 line-kilometres of high-resolution helicopter-borne magnetic surveys completed followed by prospecting during May. These surveys highlighted several geological structures and areas of structural complexity deemed favourable for gold mineralization. Mapping and prospecting of these areas included the collection of 141 rock samples of which five returned assays of greater than 1 g/t gold, and ten samples returned assays between 0.1 and 1 g/t gold. The highest-grade grab samples returned 44.7 g/t and 19.00 g/t Au were collected from the E3 showing area. Reconnaissance mapping and sampling outlined anomalous gold in bedrock, 0.1 to 0.2 g/t, over 750 metres of strike along the E3 trend to the northwest.
In the Fall, a second more comprehensive field program began with a 71 line-kilometre IP survey on three separate grids centred around the E1, E2 and E3 gold occurrences. The IP survey identified several anomalous chargeability trends interpreted to represent sulphide mineralization possibly related to gold mineralization. In the area of E1, prospecting and mapping discovered a new gold showing 300 metres northeast of E1 returning values up to 3.02 g/t gold from grab samples. This discovery is characterized by strongly hematite altered syenite that hosts 3-5% quartz veins and 5-7% disseminated pyrite, similar to the E1 occurrence. Additionally, several large sub-angular boulders of hematite altered syenite with 2-3% quartz veins and 1-2% pyrite typical of E1 was discovered 150 metres north-northwest of E1. Both discoveries display similar characteristics to the altered syenite host at E1 suggesting multiple sources and a much larger footprint to the gold mineralizing system than previously known.
Drone view of E1 gold trend exposed by recent logging activity
The orientation soil survey centred on the high grade E1 gold occurrence included the collection of 128 B-horizon soil samples over an area measuring 1,200 metres east-west by 3,000 metres north-south on 200 metre spaced lines with samples collected every 100 metres. Additional geochemical surveying planned on the E2 and E3 grids was suspended due to the onset of winter conditions; this work will be completed in the spring.
Combining the soil geochemistry with the IP survey results in the E1 area reveals a strong spatial correlation of the anomalous features. This area is defined by a broad area of elevated chargeability responses within which several individual IP axes have been interpreted. This area correlates with several anomalous gold in soil samples including 1,520 ppb gold (1.52 g/t), 400 metres west southwest along trend from the E1 surface exposure. In the east-central part of the grid, one sample returned 1,900 ppb gold (1.90 g/t) and is located at the western end of a weak IP chargeability anomaly which extends 400 metres to the east where it remains open.
In the southern part of the E1 grid, anomalous gold in soil results correlate with two moderate to strong IP chargeability anomalies that extend for over 600 metres and interpreted as potentially thick bands of altered lithologies enriched in sulphides. These occur in the area proximal to the interpreted contact area between the Bradley Lake Syenite and the volcanic rock sequences to the south defining an additional priority target for future exploration.
Compilation map of E1 Grid showing soil geochemical results on IP chargeability
Based on the success of the 2021 program, the next phase of work which is set to begin includes :
- Detailed geochemical sampling over the E1 grid and completing the previously planned sampling on the E2 and E3 grids along with field investigation of the IP targets outlined in the Fall.
- This work is intended to define trenching and drill targets as part of the next work program for late summer or the fall.
Cautionary statement: Grab samples described above are selective by nature and reported grades might not be representative of more extensive mineralized zones.