Medaro Mining Corp. has revealed that it had received the results of soil sampling from the Phase 2 exploration fieldwork program at its Canada’s Superb Lake Lithium Property in Northwestern Ontario. A total of 161 soil samples were collected in June 2022 as part of the soil geochemical survey, which was carried out along three different lines.
Sample Location and Lithium Assay Maps 1/2 Image Credit: Medaro Mining Corp.
- Line 1 is roughly 1500 m long and has a north-south orientation. There are six lithium anomalies (magenta circles on maps), of which three are 2–3-point anomalies, one is a wider anomaly and two are single-point anomalies. The third anomaly is situated in the lower half of the line.
- Line 2 is estimated to be approximately 2,500-m long and has an east-west orientation. On this line, there are three single-point anomalies.
- The longest line, Line 3, is oriented northeast-southwest and has a length of about 4,000 m. On this line, there is only one single-point anomaly.
- If the follow-up work on the first-priority anomalies is effective, a handful of second-priority anomalies will also be studied in more detail.
- The findings indicate that the property’s geology and structures, which have a predominately east-west direction, are best represented by the soil survey’s north-south orientation. The results of the Phase 1 soil sampling, which showed a trend of lithium anomalies along Superb Lake pegmatites in an approximately northwest-southeast direction, are consistent with this observation.
- These anomalies indicate the possibility of finding additional pegmatites on the property by trenching, stripping, and small test holes.
By building soil grids along three different lines and gathering a total of 161 soil samples, soil sampling was completed. Depending on the surface conditions, samples were taken every 50 m or more.
Using a soil auger and a Garmin GPS to obtain ~3-m precision, soil samples were taken at specified station IDs. When a B-soil horizon was present, >500 g of material was taken. Before being sent to the labs for analysis, the soil samples were dried at room temperature.
Trenching and Shallow Drilling Update
With the help of Winkie Drill, Medaro has launched a program of trenching and shallow drilling. The field team is currently focusing on the Phase 1 soil anomaly areas and the access paths to the Superb Lake pegmatite. Once the trails are finished, shallow drilling and trenching will commence.
Sample Preparation and Analysis
At ACTLABS Ancaster, Ontario, the soil samples were processed and subjected to laboratory code 7- Mobile Ion Geochemistry analysis, the results of which are listed below. ACTLABS is a privately owned, commercial laboratory that has received ISO 17025 certification.
The chemically active metal ions that were loosely adsorbed to soil particles are isolated by mobile ion geochemistry. This is a weak leach that extracts the desired elements from a mixture of organic and inorganic compounds.
An ICP-MS is used to analyze the solutions. For every 49 samples, one matrix blank is examined. At the start and the end of the collection of 49 samples, two controls are conducted. For every ten samples, duplicate samples are run and leached. Elements and detection limits for Code 7 Mobile Ion Geochemistry (MIG) are given in parts per billion (ppb).