- Twenty Seven Co. has released final assay results for the recent RC drilling program at the Rover Project.
- Of the 33 drill holes, 13 targeted the Harmonic gold prospect registering wide intercepts of gold mineralisation commencing either from surface or at very shallow depths.
- A 404-metre RC drilling campaign at the Creasy 1 deposit recorded gold intercepts with grades up to 54g/t Au.
- The company has planned surface geochemical programs, modelling of Creasy 1 and Harmonic mineralisation systems, and assessment and planning of known gold targets for upcoming drilling programs at the Rover Project.
Twenty Seven Co. Limited (ASX:TSC) has released final assay results for the recently concluded Reverse Circulation (RC) drilling campaign at the Rover Project.
Almost half of the RC drill holes targeted the priority targets within the Harmonic gold prospect, intersecting broad gold intersections at the surface. The latest results suggest that the mineralisation remains open along strike and down dip at the Harmonic deposit.
The RC drilling program targeted to follow up on the historically significant results at the Harmonic and Creasy 1 prospects and test newly discovered gold prospects during the auger drilling and soil geochemical programs concluded in 2020.
The assay results for all 33 RC drill holes have been received with the best results from the Harmonic prospect. The Harmonic gold prospect is located almost 300 metres north of the renowned Creasy 1 gold prospect and was discovered in 2019.
Harmonic gold prospect – 13 RC drill holes over 1,139 metres were drilled registering wide intercepts of gold mineralisation commencing either from the surface or at very shallow depths from 3 drill holes including –
- 18 metres @ 1.0g/t Au from 5 metres (20RVRC057) including 3 metres @ 5.4g/t Au from 17 metres
- 17 metres @ 1.0g/t Au from surface (20RVRC054) including 3 metres @ 2.1g/t Au from 2 metres
- 8 metres @ 1.1g/t Au from surface (20RVRC062) including 2 metres @ 2.8g/t Au from surface
Harmonic Long Section (Source: TSC ASX Announcement 29 October 2020)
Previous drilling program at the Harmonic deposit had also recorded broad gold intercepts extending at depth including-
- 20RVRC020- 10 metres with 1.8g/t Au from 44 metres including 1 metre with 9.2g/t Au from 46 metres
- 20RVRC020- 13 metres with 1.2g/t Au from 58 metres including 1 metre with 11.8g.t Au from 59 metres
- 20RVRC018- 8 metres with 1.0g/t Au from surface including 1 metre with 3.5g/t Au from 2 metres
- 20RVRC023 - 10 metres with 1.0g/t Au from 71 metres including 4 metres with 1.5 g/t Au from 75 metres
- 20RVRC022 - 10 metres with 0.5g/t Au from 27 metres including 2 metres with 1.2g/t Au from 27 metres
- 19RVRC007 - 9 metres with 1.4g/t Au from 58 metres including 1 metre with 7.25g/t
- 19RVRC008 - 14 metres with 1.0g/t Au from 19 metres including 2 metres with 3.3g/t Au & 21.2g/t Ag from 26 metres
The updated long section of the Harmonic mineralisation suggests gold mineralisation commencing from the surface in the north-west and plunging shallowly to the southeast. The best intercept in the southern section is 3 metres with 0.27g/t gold.
Creasy 1 Gold Prospect – A 404-metre RC drilling campaign was concluded to test the mineralisation along the strike of 19RVRC001, which recorded intercept of 15 metres with 3.8g/t Au from 49 metres including 1 metre with 54g/t Au. The recent drilling campaign confirms the continuation of gold mineralisation along strike of 19RVRC001.
- 20RVRC065 – 12 metres with 0.44 g/t Au from 14 metres
- 20RVRC066 – 3 metres with 0.91 g/t Au from 20 metres
- 20RVRC083 – 6 metres with 0.34g/t Au from 65 metres
- 20RVRC084 – 9 metres with 0.43g/t Au from 74 metres, including 3 metres with 1.01 g/t Au
The widely spaced drilling activity at Creasy 1 defined the mineralisation at the 1,500-metre long Illarra shear zone (> 0.1 g/t Au) delivering high-grade intersections. A densely spaced drilling campaign is required at Creasy 1 to define the potential for high-grade shoot intersected in 19RVRC001 and follow up on other significant intersections during the past year.
Red Bush: In the recent drilling program, 249 metres of drilling was completed at Red Bush. The drill hole (20RVRC067) intersected strong sulphides with anomalous gold mineralisation including 3 metre with 0.1g/t Au from 53 metres. In addition, lead (to 0.19%), zinc (to 0.11%) and silver (to 18.2g/t) were also recorded. Further follow-up investigation is required to gain more clarity on the strong gold anomaly at Red Bush.
Maynard Intrusion target: 13 holes were drilled over 257 metres on a single line across the broad gold anomaly on the Maynard Intrusion target. The RC drill hole intersected weathered granite confirming the presence of intrusive granitic systems. Despite no substantial gold anomalies intersection and strong bismuth anomalies, a gold pathfinder metal at Harmonic and Creasy 1 was observed. The recent holes tested only a small section of the deposit, and future drilling program would utilise aircore drilling methods over a larger area.
Twenty Seven Co. has already planned further exploration steps at the Rover and Mt Dimer projects for accelerated exploration and development at the mineral projects.
- Performing surface geochemical campaign on the tenement (E77/1134)
- Modelling of Creasy 1 and Harmonic mineralisation systems
- Appraisal and planning of known gold targets for upcoming drilling programs
- Assessment and evaluation of results from the Mt Dimer field trip
- Drill planning and permits
TSC traded at $0.006 a share on 30 October 2020 (AEST 1:21 PM).