Investigator’s 2662g/t silver hit at Paris: mine design implications for planners
Reviewed by Joe Ashwell
First reported on Australian Mining
30 Second Briefing
Investigator Silver has reported an upgraded intersection of 10m at 2662g/t silver at the Paris project in South Australia, including 4m at 5448g/t from 78m at Paris East, signalling very high-grade mineralisation outside the current mine plan. The standout 1m interval within this zone materially lifts contained metal per vertical metre and could justify re-optimisation of pit shells or underground access in future studies. For geotechnical and mine planning teams, the new data point to potential extensions of the orebody and tighter drilling to refine grade continuity and stope geometry.
Technical Brief
- New mineralisation reported specifically from the Paris East sector of the deposit.
- Intersection depth around 78m suggests potential open-pit or shallow underground access options.
- Very high silver tenor implies narrow, high-value stopes with tight dilution control requirements.
- Grade spike intervals will require closer-spaced drilling to model short-range variability and continuity.
- Geotechnical domains at Paris East may need redefinition if high-grade zones cut existing pit walls.
- Mine scheduling could shift to prioritise early access to Paris East for cashflow optimisation.
- Similar narrow, ultra-high-grade silver systems often transition from pit to selective underground mining.
Our Take
The shallow start depth of the standout 4m interval at Paris East (from 78m) implies relatively low stripping and development costs compared with deeper silver systems, which can materially improve project economics if continuity is demonstrated along strike.
With most recent Australia-focused project stories in our database centred on gold or bulk commodities, a high-grade silver project like Paris offers diversification for domestic developers and may attract attention from precious‑metal producers looking to balance gold‑heavy portfolios.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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