- Twenty Seven has released assay results for the 1-metre re-split samples from the Harmonic prospect, confirming near-surface, high-grade intercepts with grade up to 8.1 g/t gold.
- A large soil sampling campaign has been completed on two prospects in E57/1134.
- The team is also progressing on the next phase of exploration at the Mt Dimer Mining Lease.
Gold explorer Twenty Seven Co. Limited (ASX:TSC) has announced assay results for the 1-metre re-split samples of the previously reported 3-metre composite samples at the Rover Gold Project. The composite samples were collected during the RC drilling campaign at the Harmonic prospect in October 2020.
October Drilling Results: Twenty Seven Co. (TSC) Releases Preliminary Assay Results for Harmonic Gold Prospect
High-Grade Assay Results at Harmonic
The new assay results invigorate the potential for a large, near-surface gold mineralisation system at the Harmonic prospect. The prospect is located north-west of the Creasy 1 deposit and hosts shallow gold mineralisation, which is understood to be located along the 200-metre strike length and remains open.
The 1-metre re-split sample assays recorded substantial near-surface gold intersections with grades up to 8.1 g/t gold from 17 metres downhole.
Furthermore, a broad area with strong gold anomaly was intersected almost 180 metres north of the primary mineralisation orebody identified at Harmonic. The 1-metre re-split sample from the drill hole 20RVRC061 includes 14 metres with 0.3g/t gold, 33 metres downhole which includes 2 metres at 1 g/t gold from 33 metres, suggesting that the shear zone is mineralised to the north.
Soil Sampling Campaign at the Newly Granted E57/1134
The geology team at Twenty Seven has concluded a soil geochemistry program on the wholly owned exploration tenure (E57/1134) north-west of the Harmonic and Creasy 1 prospects. The campaign over two new priority areas, Four Corners and Blue Hills, followed a review of historical soil geochemistry identifying priority targets. The previous explorer had switched the commodity target to iron ore, leaving the anomalous targets never being followed up.
Secured in August 2020, the new tenement expanded the Rover project in the prospective greenstones.
The soil sampling campaign covered two of the already identified priority targets.
- Four Corners: A 400-metre-long historical gold in soil anomaly is hosted within a gold anomalous region defined by Golden Cross Resources in 1990s.
- Blue Hills: An area dominated by quartzite holds strong similarities with the Harmonic and Creasy 1 prospects. The historical soil sampling program returned high anomalous gold grades up to 13ppb gold. The gold anomalies are interpreted to be located in close proximity to the mapped contact between the mafic rocks in the west and quartzite in the east. The contact is a critical component at Harmonic and Creasy 1 as it controls the position of the regional shear zone and the gold mineralisation.
TSC has already collected over a thousand samples at the Four Corners and Blue Hills prospects and sent all samples for assaying at the laboratory. The results are pending as of now and are expected later this month. Previous soil sampling program was critical to identifying gold and pathfinder metal anomalies at the Maynard Hills greenstone belt which after subsequent drilling led to a gold discovery in late-2019.
Twenty Seven Co. is progressing with exploration at the Rover Project. Over the short term, the Company has planned the following key activities:
- Interpretation of soil sample assay results
- Evaluation of the final 1-metre re-split assays from the Creasy 1 and Harmonic prospects.
The geology team is also advancing on the next stage of the exploration program at the Mt Dimer Mining Lease.
TSC traded flat at $ 0.006 on 3 December 2020 (AEDT 10:53 AM).