- The recent drilling campaign included 3 drill holes (763 metres in total) to test the plunge extent beneath the known gold mineralisation and potential new parallel lode positions
- Deepest drill hole to date confirmed broad zone of alteration and mineralisation 33.1 metres long with a grade of 1.6 g/t gold, indicating the extension of the mineralisation to a depth below 291 metres
- WA Government co-funded 500-metre-deep diamond drilling scheduled for mid-November, Further RC Drilling program also anticipated to commence in November
Gold and base metals explorer, First Au Limited (ASX:FAU) announced strong assay results for 3 drill holes at the flagship Gimlet gold project in the vicinity of Kalgoorlie goldfields.
The drilling program targeted to test the extension of mineralisation at depth and identify any potential plunge to the mineralisation system. The au courant audience must know that Gimlet holds JORC resource of 69, 000 oz gold.
The diamond drilling core material was utilised for alteration and structural mapping to integrate to a new critical mineralisation study to develop new targets.
Must Read: First Au commences Diamond Drilling at Gimlet
Both diamond drill holes (20GDD001 and 20GDD002) displayed a 30 metres thick envelope of alteration including mineralised shoots, with 20GDD001 displaying a broad zone of 33.3 metres with 1.6 g/t gold. Both the drill holes confirmed that the mineralisation continued with depth and illustrated the exploration potential. The mineralisation will be tested further in November including the WA Government co-funded 500-metre-deep diamond drilling under the Exploration Incentive Scheme (EIS). Additionally, an RC drilling will also commence during November and will contribute to identify and add potential new JORC resources.
Diamond Drilling Program at Gimlet
In August, First Au commenced a diamond drilling program at the flagship Gimlet gold project. The drilling program included a 3 diamond holes (763 metres in total) to test the plunge extent beneath the known gold mineralisation and potential new parallel lode positions. The fourth planned drill hole was not drilled and will instead be drilled as an RC drillhole in the upcoming program.
The drilling program had prioritised the diamond core to have extensive alteration and structural mapping along with engaging with Model Earth, geological consulting company, to complete the task. A new critical mineralisation study intends to better understand the Gimlet prospect and develop new targets. Due to the COVID restrictions, some of the results have been delayed.
Long section of the Drilling holes Source: First Au Limited ASX Update 4 November 2020
The drill holes intersect mineralisation which was observed in previous drilling programs. The assay results and geology indicate that the mineralisation is open at depth. The drilling intercept 20GDD002 displays the deepest intersection at a vertical depth of 291 metres.
The latest study suggested that Gimlet is a complex system which hosts preserved polyphase deformation. The drilling program targeted a southerly plunge while the study indicates that the mineralisation may shoot in other direction facilitating the potential of new drilling prospect to be followed at Gimlet.
Next Steps and Way Forward at Gimlet
The drilling campaign has been planned for November to test the new target areas, including the recently identified targets from the IP (Induced Polarisation) and the SAM (Sub Audio Magnetics) geophysical surveys. The program plans to also test new structural targets from the recent diamond drilling program.
Recent drill holes (in red) and the EIS drill hole 9in yellow) to test down plunge Source: First Au Limited ASX Update 4 November 2020
Additionally, information gained from the diamond drilling campaign assists in the planning of the West Australian Government co-funded diamond drilling targeting mineralisation below 500 metres.
A successful gold intersection in the planned diamond drill hole substantiates the potential of a major gold camp at the Teal-Gimlet mineralised corridor in the Eastern Goldfields.
The FAU-Government collaborated hole would be the deepest hole in the area and would validate the extension of mineralisation at depth. The drilling of the deepest hole is expected to commence in November.
Suggested Read: First Au’s Exploration Program Paving Way for the VicGold Asset
First Au traded at $0.028 a share on 5 November 2020 with a market capitalisation of $14.52 million.