The Board of Thor Mining Plc (“Thor” or the “Company”) (AIM, ASX: THR), is pleased to report positive outcomes from a diamond drill hole at the Desert Scheelite deposit at the Company’s wholly owned Pilot Mountain tungsten project in Nevada, USA.
· Several scheelite (tungsten trioxide) mineralised intervals were identified by blue fluorescence under ultra violet “UV” light
· Intercepts of sulphide mineralisation including copper bearing chalcopyrite
· 15 metres (m) of scheelite mineralisation from 198 metres.
· 4m of scheelite mineralisation from 217m.
· 18m of scheelite mineralisation from 256m, including sub massive sulphide mineralisation, including chalcopyrite, for 5m from 256m and for a further 4m from 266m.
Detailed logging of the core samples is complete and samples submitted for laboratory assay.
Mr Mick Billing, Executive Chairman of Thor:
“Very encouraging looking core samples from Desert Scheelite, and hopefully the assays, expected in several weeks, will confirm this.
“Desert Scheelite continues to shape as a very exciting deposit, amongst the suite of deposits at Pilot Mountain with extremely promising growth potential.”
Table 1: Drill hole orientation summary
Easting NAD83 zone 11
Northing NAD83 zone 11
Hole collar dip*
Hole collar Azimuth*
Final Depth (m)
17DS – DD01
* Down hole gyro survey shows dip increased to 70 deg and azimuth increased to 199 degrees by the end of hole.
The Desert Scheelite diamond drilling program was designed as to test for high grade extensions to previous mineralisation with a best result in 2012 of 17.5m @ 1.80% copper plus 2.2% zinc and 32 g/t silver, along with 13.5m of 0.89% scheelite.
Hole 17DS-DD01 was designed to test a zone approximately 50m below these historic intersections
**Link to Desert Scheelite east – west longitudinal projection showing approximate intercept location for drill hole 17DS-DD01. Other 2017 holes noted are from the reverse circulation drill program earlier in 2017.
In response to challenging drilling conditions through the volcanic cover to the north of Desert Scheelite, the Company has elected to sight the next hole to the south of the deposit and drill through more competent quartz monzonite. Regulatory permitting to drill from this new site is in process, and subsequent drilling at Desert Scheelite will be deferred until this permitting is in place.
The drill rig has now moved to the Good Hope site and has commenced re-drilling hole 17GH-RC01 which terminated prior to target depth. Preliminary XRF analyses on 17GH-RC01 reported on 18th August 2017 comprised 27.4m @ 1.1% copper, 1.3% zinc and 0.19% tungsten trioxide (WO3 ) including 10.0m (true width estimate of 6.5m) from 17.5m depth at 0.32% WO3
On completion of the drill programme and the receipt of all final assay data the Company will issue an updated report with the full results. XRF analyses are considered indicative, preliminary data and are only undertaken on small subsamples of the RC drill cuttings. XRF analyses is not suited for core or whole rock. Follow up laboratory analyses are more definitive than XRF results.
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