Twenty Seven Co Ltd (ASX:TSC) December quarter highlights feature the completion of a reverse circulation (RC) drilling campaign at the Rover Gold Project in WA, and the identification of strong copper, gold and tin mineralisation at the Trident Project in NSW.
“Solid progress was made during the December 2021 quarter at both our Rover and Trident projects, notwithstanding some minor delays due to drill rig mobilisation and COVID-19 access restrictions in NSW,” TSC CEO Simon Phillips said.
“We are looking forward to receiving first results from the Rover drilling program this quarter as we aim to delineate further gold mineralisation at the Harmonic (NASDAQ:HLIT) and Creasy 1 prospects.
"Soil sampling completed at Rover during the quarter identified several highly encouraging targets, with values of up to 420 ppb gold, which will be subject to further sampling prior to potential drill testing.
“Trident continues to emerge as an exciting opportunity for TSC with sampling completed during the quarter highlighting encouraging copper, gold and tin mineralisation. A follow-up sampling program will be undertaken during Q1 2022 to further test these targets.”
Trident highlights
TSC’s NSW project, Trident, is prospective for iron oxide-copper-gold (IOCG), and tin, and is ~35 kilometres northeast of Broken Hill.
Location of TSC’s Broken Hill tenements.
There have been several milestones during the quarter including:
- High-grade copper assays returned with rock chip samples up to 17.60% copper recorded;
- Up to 1.275 g/t gold recorded from the same area as highly anomalous copper results;
- Multiple tin results greater than 1% received in several samples, with up to 2.44% also recorded;
- Coupled with the high tin results are highly anomalous niobium, tantalum and rubidium grading up to 1080ppm, 676ppm and 3080ppm respectively; and
- Positive copper and gold assays confirm the potential for IOCG mineralisation.
November’s assay results from first pass rock chip sampling program were highly encouraging.
A total of 152 rock chip samples were taken from across the northern portion of the tenement, within areas of historically reported highly anomalous copper, gold, tin and other critical elements.
The rock chip program was undertaken to target copper and gold mineralisation along with confirmation of the historical lithium samples taken by previous explorers.
Significant assay results were received.
Read: Twenty Seven Co sampling at Trident returns strong copper, gold and tin mineralisation
Roving at Rover
TSC’s WA project, the Rover Gold Project also threw up some significant highlights.
The Rover Project is a large strategic tenement holding in the Central Yilgarn, prospective for Archean gold and volcanic hosted massive sulphide deposits.
During the quarter, TSC achieved:
- Successful completion of soil sampling program, conducted over the area to the north along strike from Middle Well prospect;
- A total of 243 samples were taken with initial results demonstrating elevated gold-in-soil results with samples up to 420ppb gold;
- Good correlation between geochemical anomalies and interpreted regional structural features;
- RC drilling campaign completed comprising 31 holes for a total of 2,161 metres;
- 574 samples submitted to the laboratory – results from these samples are expected to be returned Q1 2022;
- Hole 21RVRC022 intersected a 4-metre (62-66m DH) zone of massive sulphides (pyrite and pyrrhotite) within a 7-metre zone of disseminated sulphides; and
- A total of 31 holes for 2,161 metres was completed, with 574 samples submitted to the laboratory for multi element and gold analysis.
First results are expected during Q1 2022.
Read: Twenty Seven Co completes RC campaign at Rover Gold Project, intersects 4-metre zone of massive sulphides
Map of the Rover project showing the location of the Harmonic and Creasy 1 prospects as well as the most recent soil sampling locations.
When the drilling program first began, Phillips said, “We are eager to test several of the largest and highest magnitude gold-in-soil anomalies defined within our Rover Project to date.
"Our plan is to extend the previously-defined gold system at Harmonic and Creasy, both to further increase the overall prospectivity of the project and to better understand the size and potential scale of the mineralised gold system.
“This drilling program is an important step in the process, and we look forward to reporting outcomes as soon as possible in the new year.”
Drilling followed soil results collected from Rover which returned positive results, including a gold-in-soil result of 420ppb along with numerous samples that are above 10ppb.
TSC is hoping for similar success to major discoveries that have been made in the Kalgoorlie district beneath weak soil anomalies such as Kanowna Belle – 4 million ounces – 350 metres >60ppb gold-in-soil.